• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A compressor system can include a compressor with a compressor housing. The compressor housing may include an oil drain passage formed therein. The passage can be configured to drain oil from bearings and other oil-lubricated components of the compressor. The compressor can be coupled to a gearbox or an oil tank. The transmission or the oil tank may include a passage that is in fluid communication with the oil drain passage. The transmission or oil tank passageway may be operable to receive the drained oil and direct the drained oil to an oil tank.
    公开号:BE1023287B1
    申请号:E2015/5683
    申请日:2015-10-23
    公开日:2017-01-20
    发明作者:Daniel Kistner；Frank Banaszak；Michael Besseling
    申请人:Ghh-Rand Schraubenkompressoren Gmbh；
    IPC主号:
    专利说明:

    Compressor systems and compressor
    Field of the invention
    The present invention relates to compressor systems, and more particularly to systems and methods for draining oil from a compressor.
    background
    Compressor systems such as e.g. Air compressor systems are still a significant area. Some existing systems have several deficiencies, shortcomings and disadvantages with respect to particular applications. For example, some air compressors use external piping to remove lubricating oil from
    Discharge the compressor. The pipeline may be leaking under certain conditions. Accordingly, there is still a need for further contributions in this area of technology. Summary
    Embodiments of the present invention include a single compressor system. The compressor system may include a compressor with a compressor housing. The
    Compressor housing may include an oil drain passage formed therein. The passage may be configured to drain oil from bearings and other oil-lubricated components of the compressor. The compressor may be coupled to a transmission or to an oil tank. The transmission or oil tank may include a passage that is in fluid communication with the oil drain passage. The transmission or oil tank passageway may be operable to receive the drained oil and direct the drained oil to an oil tank.
    Brief description of the drawings
    The description refers to the attached drawings, wherein like reference numerals refer to like parts throughout the views, and wherein:
    FIGS. 1A-1E schematically illustrate some aspects of non-limiting examples of compressor systems having internal oil drain passage compressors according to some embodiments of the present invention.
    Figures 2A-2D schematically illustrate some aspects of a non-limiting example of a compressor having an internal oil drain passage according to an embodiment of the present invention.
    Figures 3A-3D schematically illustrate some aspects of a non-limiting example of a compressor having an internal oil drain passage according to an embodiment of the present invention.
    Figures 4A-4D schematically illustrate some aspects of a non-limiting example of a compressor having an internal oil drain passage according to an embodiment of the present invention.
    Fig. 5 schematically illustrates some aspects of a non-limiting example of a compressor having an internal oil drain passage according to an embodiment of the present invention.
    6 schematically illustrates some aspects of a non-limiting example of a compressor having an internal oil drain passage according to an embodiment of the present invention.
    Fig. 7 schematically shows some aspects of a non-limiting example of a compressor system with a
    Compressor with an internal oil drain passage, wherein the
    Compressor is installed in a Drehausrichtung according to an embodiment of the present invention.
    Fig. 8 schematically illustrates some aspects of a non-limiting example of a compressor system having a compressor with an internal oil drain passage, wherein the compressor is installed in a different rotational orientation with reference to Fig. 7 according to an embodiment of the present invention.
    Detailed description
    To assist in understanding the principles of the invention, reference will now be made to the embodiments illustrated in the drawings, and specific terms will be used to describe the same. However, it is to be understood that it is not intended to limit the scope of the invention by way of illustration and description of particular embodiments of the invention. In addition, it is intended that all changes and / or modifications of the illustrated and / or described embodiment (s) within the
    Scope of the present invention. Furthermore, it is intended that all applications of the principles of the invention illustrated and / or described herein that would normally occur to one of ordinary skill in the art to which the invention belongs are intended to be within the scope of the present invention.
    Referring to Figures 1A and 1B, some aspects of a non-limiting example of a compressor system 10 according to one embodiment of the present invention are schematically illustrated. The compressor system 10 includes a compressor 12, a compressor 14, a transmission 16 and an oil tank 18. In one form, the compressor system 10 is a two-stage compressor system that compresses a fluid, e.g. Air, which is then derived from the compressor system 12. In one form, the compressor 12 is a second stage compressor, and the compressor 14 is a first stage compressor. In other embodiments, the compressors 12 and 14 may operate in parallel, or the compressor 14 may be a second stage compressor and the compressor 12 may be a first stage compressor. In various embodiments, the compressor system 10 may be any one-stage or multi-stage compressor system with one or more compressors. In one form, each of the compressors 12 and 14 is an oil-free screw compressor. In other embodiments, the compressors 12 and 14 may have other shapes.
    The transmission 16 is in mechanical communication with the compressors 12 and 14 and provides mechanical power to operate the compressors 12 and 14. The oil tank 18 is coupled to the transmission 16 and receives lubricating oil, which is discharged from oil-lubricated components of the compressors 12 and 14 and in some cases also the transmission 16. In some embodiments, the oil tank 18 may be coupled directly to the compressors 12 and 14. In various embodiments, the drained oil may be conditioned, i. filtered and / or cooled. The oil is then added e.g. supplied under pressure to various components of the compressors 12 and 14 and in some embodiments to the transmission 16 to provide various components, e.g. Lubricate bearings and gears. Some embodiments may not use a transmission 16. In some embodiments 16, the oil tank 18 may be integral.
    Referring to FIGS. 1C and 1D, the compressors 12 and 14 each include two intermeshing compressor elements in the form of screw compressor rotors, the corresponding drive screws 20A, 20B, and driven ones
    Screws 22A, 22B are. Drive screws 20A, 20B include respective shaft portions 24A, 24B extending from the ends 26A and 26B of the screws 20A, 20B. The shank portions 24A and 24B are mechanically coupled to and receive rotational power from the transmission 16 to rotate about respective screws 20A and 20B. From the ends 28A, 28B; 30A, 30B; and 32A, 32B of respective screws 20A, 20B and 22A, 22B, shank portions 34A, 34B extend; 36A, 36B and 38A, 38B. Each of the drive screws 20A, 20B and the driven screws 22A, 22B are at respective ends 26A, 26B; 28A, 28B; 30A, 30B; and 32A, 32B of bearings 40A, 40B on shank portions 24A, 24B; 34A, 34B; 36A, 36B and 38A, 38B coupled. In one form, the layers 40A, 40B are rolling element bearings. In one form, each of the bearings 40A and 40B represents roller bearings and / or ball bearings. For example, in a form of each of the bearings 40A and 40B disposed on the shafts 34A, 34B and the shafts 36A, 36B, a combination of FIG Roller bearings and ball bearings, wherein each of the bearings 40A and 40B, which are mounted on the shafts 24A, 24B and the shafts 38A, 38B represent roller bearings. In various embodiments, each of the bearings 40A and 40B may represent roller bearings and / or ball bearings and / or one or more other types of bearings. To the respective ends 28A, 28B and 32A, 32B of the screws 20A, 20B and 22A, 22B are coupled gears 42A, 42B and 44A, 44B. The gears 42A, 42B and 44A, 44B are on corresponding ones
    Shaft portions 34A, 34B and 36A, 36B mounted. The gears 44A, 44B are driven by input gears 42A, 42B. In one form, gears 42A, 42B and 44A, 44B maintain timing between respective drive screws 20A, 20B and driven
    Screws 22A, 22B upright.
    The compressors 12 and 14 include molded rotor housings 46A and 46B; molded dissipation housings 48A and 48B; and drain side covers 50A and 50B. The molded drain casings 48A and 48B are secured to respective molded rotor casings 46A and 46B; and the drain side covers 50A and 50B are attached to respective molded drain casings 48A and 48B. The rotor housings 46A and 46B include radial drive screws 20A, 20B and driven screws 22A, 22B. Between the ends 26A, 26B; 28A, 28B; 30A, 30B; and 32A, 32B. In various embodiments, the rotor housings 46A and 46B define all or part of oil sumps 52A, 52B adjacent the screw ends 26A, 26B and 30A, 30B. In some embodiments, the transmission 16 may also define oil pans 52A, 52B in their entirety or partially. The oil pans 52A, 52B receive the housings 40A and 40B mounted on the shafts 24A, 24B and the shafts 38A, 38B. The molded drain casings 48A and 48B and drain sidewalls 50A and 50B define oil pans 54A and 54B, which enclose the
    Screw ends 28A, 28B and 32A, 32B are adjacent. The oil pans 54A and 54B receive the housings 40A and 40B mounted on the shafts 34A, 34B and the shafts 36A, 36B. The oil pans 54A and 54B also receive respective gears 42A, 42B and 44A, 44B. During operation of the compressors 12 and 14, oil is supplied to lubricate the bearings 40A and 40B and the gears 42A, 42B and 44A, 44B in respective oil sumps 52A, 52B and 54A, 54B.
    The transmission 16 includes built-in passages 56A, 56B for receiving lubricating oil from the corresponding ones
    Compressors 12 and 14 is drained. In one form, the transmission 16 includes a molded housing into which is incorporated
    Passages 56A, 56B are formed as cast passages. In other embodiments, the transmission 16 may not include a molded housing. In various embodiments, the incorporated vias 56A and / or 56B may take any suitable form, including, e.g. worked passages. In some embodiments, internal tubes, tubing, flexible or rigid tubing or the like may be used. The built-in passages 56A, 56B are in fluid communication with the oil tank 18 to provide oil that is discharged from the compressors 12 and 14 into the oil tank 18.
    The compressors 12 and 14 include respective built-in cast oil drain passages 58A, 58B having respective discharge ports 60A, 60B. In one form, each built-in cast oil drain passage 58A, 58B includes a single corresponding drain port 60A, 60B. In other
    In embodiments, each built cast oil drain passage 58A, 58B may have a plurality of corresponding ones
    Have discharge openings 60A, 60B. The discharge openings 60A, 60B may have any shape, e.g. any cross-sectional shape suitable for the application. Built-in cast oil drain passages 58A, 58B extend through the rotor housings 46A and 46B, between the ends of the
    Compressor screws and include the portions 62A, 62B, which extend through the drain housings 48A and 48B. The bleed passages 58A, 58B, the bleed ports 60A, 60B, and sections 62A, 62B of the bleed passages 58A, 58B are formed as molded passages / openings within the respective molded rotor housings 46A and 46B and the molded bleeder housings 48A and 48B. Built-in cast oil drain passages 58A, 58B extend between the respective oil pans 52A, 52B and oil pans 54A, 54B. Molded oil drain passages 58A, 58B are in fluid communication with both the oil pans 52A, 52B and the oil pans 54A, 54B, and are patterned to contain the oil used around the bearings 40A and 40B and the gears 42A, 42B and 44A 44B from both the oil pans 52A, 52B and the oil pans 54A, 54B without the use of external pipes to collect and discharge. That is, the built-in cast oil drain passages 58A, 58B alone release the lubricating oil from both the respective oil pans 52A, 52B and the oil pans 54A, 54B without other bleed means such as e.g. Use piping, pipes, hoses or the like, which are outside the rotor housing 46A and 46B, discharge housing 48A and 48B and the discharge side covers 50A and 50B.
    The oil drain passages 58A, 58B and the
    Discharge ports 60A, 60B are in fluid communication with the installed passageways 56A, 56B of the transmission 16 and are operable to drain oil to the transmission without the use of external piping. That is, through the use of internal passages 58A, 58B, i. Passages that lie within the compressor avoid the use of external installations, hoses and the like on the compressors 12 and 14. Such external installations may tend to leak, i. due to vibrations or other causes, and thus, in some embodiments, the use of internal passages may eliminate such potential leaks. Similarly, through the use of built-in passages 56A, 56B, i. Passages that are within the transmission and built into it, the use of external installations and the like also avoided.
    Built-in cast oil drain passages 58A, 58B are patterned to drain and drain the lubricating oil from the oil pans 52A, 52B and the oil pans 54A, 54B into built-in passages 56A, 56B. In some embodiments, oil drain passages 58A, 58B with drain ports 60A, 60B may be in direct fluid communication with the oil tank 18, in addition to or instead of the built-in passages 56A, 56B of the transmission 16, and may be operable to drain oil therein.
    In some embodiments, the bleed passages 58A and / or 58B are patterned together with corresponding bleed apertures 60A and / or 60B, e.g. in terms of geometry, size, and arrangement to allow the respective compressor 12 and / or 14 to be installed at various rotational angles or orientations, while still allowing adequate drainage of lubricating oil from the respective oil pans 52A, 52B and oil pans 54A, 54B , eg Oil used to lubricate the bearings 40A, 40B and the bearings and gears 42A, 42B and 44A, 44B of the compressors 12 and 14. The various orientations of the installation may be desirable for one or more reasons, e.g. to reduce the overall size, weight and / or cost of the compressor system. For example, it may be desired to include a compressor in a second installation having a different rotational orientation than the first rotational orientation for reasons such as, but not limited to, reducing the overall package size of the compressor, e.g. by minimizing a center distance between the axis of rotation of the transmission output gear and the axis of rotation of the
    Compressor input gear, e.g. of the input gears 42A, 42B. and without limitation, the alignment of a compressor with Luftaufnahme- and
    Drain valves (an example of which is illustrated in Figs. 7 and 8).
    By patterning bleed passages 58A and / or 58B with respective bleed ports 60A and / or 60B to allow the corresponding compressor 12 and / or 14 to be installed at various rotational angles while still providing adequate bleed of lubricating oil from the respective oil pan Bearings and gears is allowed, the same compressor can be used in more than one application. For example, referring to FIG. 1E, a compressor system 64 having a transmission 66 with built-in bleed passages 68A, 68B, and an oil tank 70 may also use the same compressor 14 as in the compressor system 10, but in an orientation other than orientation of Fig. 1A is rotatably displaced, ie Rotated 90 degrees from the orientation in which it is installed in the compressor system 10. In this example, the compressors, the transmission and the oil tank are cooperatively arranged and interconnected similarly to that of the compressor system 10. In various embodiments, the second orientation of compressor 14 (i.e., as installed on gearbox 66) may be rotatably displaced up to 90 degrees or more than 90 degrees from the first orientation. Thus, in some
    Embodiments, the compressor 14 are installed in a different rotational equipment and used so that it can be used in a different compressor system.
    For example, while in the embodiments of Figs. 1A and 1B, the compressor 14 is a first-stage compressor arranged in one rotational direction, in others
    Embodiments, the same compressor 14 with the passage 58B with a discharge opening 60B installed in another compressor system, e.g. the compressor system 64 in which it is a second stage compressor used in conjunction with a larger or different similar or different first stage compressor 14B, e.g. which may include an oil drain passage 58C similar to the oil drain passages 58A, 58B. When installing the compressor system 64, the compressor 14 may desirably be installed in a different direction of rotation, i. a rotational direction that is 90 ° different from that of the compressor system 10 of Fig. 1A. Accordingly, in some embodiments, the same compressor may be used e.g. without modification, are used in systems that use the compressor as a second stage compressor, installed in a first rotational orientation, and also in systems that use the compressor as a first stage compressor installed in a second orientation that is rotatable from the first alignment is moved.
    Thus, by configuring or structuring the oil drain passage, e.g. of the oil drain passage 58B in the example just given, to allow for adequate drainage at various installed rotational orientations, lower cost, lighter weight, and / or smaller size. In other embodiments, the same compressor, e.g. used without modification in systems incorporating this compressor, e.g. use the compressor 14 as the sole compressor in a single stage compressor system. In various embodiments, the passageways 58A and / or 58B may be structured, e.g. in terms of geometry, size and / or arrangement, to allow the corresponding compressor 12 and / or 14 to be installed in various angles of rotation or orientations, e.g. anywhere between plus or minus 45 or more degrees of rotation from a nominal orientation while still allowing adequate drainage of lubricating oil from bearings, gears and the like from compressor 12 and 14.
    Referring now to FIGS. 2A-2D, 3A-3D, and 4A-4D, some examples illustrating some or many potential configurations of oil drain passages using oil drain passage 58B and compressor 14 are illustrated as an example. The oil drain passages allow the compressor to be installed at various angles of rotation, e.g. anywhere between plus or minus 45 or more degrees of rotation from the nominal value (0 °), or otherwise a 90 ° turn from a first rotational orientation to a second rotational orientation, while still allowing for adequate drainage of lubricating oil. In other embodiments, the allowable variation of the rotational orientation may be less than 90 ° while in still other embodiments the allowable variation of the rotational orientation may be greater than 90 ° while still adequately draining oil from the bearings and gears and other oil lubricated components in the oil sumps becomes. The examples may also be applied to the oil drain passage 58A and the compressor 12.
    In the description of FIGS. 2A-2D, the oil drain passage 56B and the drain port 60B have a circular cross section. The diameter, shape and arrangement, e.g. the radial and circumferential positions with respect to the oil pans 52B and 54B of the oil drain passage and the discharge port are structured to allow lubricating oil from the oil pans 52B and 54B and the oil lubricated components therein, e.g. Bearings and gears, in an angular or rotational direction of the compressor of -45 ° (Fig. 2B), in an angular or rotational orientation of -0 ° (Fig. 2C) in an angular or Drehausrichtung of 45 ° (Fig. 2C) drained becomes. It is to be understood in light of the present disclosure that, in some embodiments, the passage 58B, including the drain port 60B, may be structured to drain oil from the oil pans when the compressor is installed in a first orientation and also when the compressor is installed in a second orientation, which is rotatably shifted by 90 ° from the first orientation, as well as alignments therebetween in others
    Embodiments, and in still other embodiments, more than a rotational displacement of 90 °
    In the description of Figs. 3A-3D, the oil drain passage 58B has a circular cross section, and the drain port 60B is fan-shaped. The size, shape and arrangement e.g. the radial and circumferential positions with respect to the oil pans 52B and 54B of the oil drain passage and the
    Discharge ports are structured to allow lubricating oil from the oil sumps 52B and 54B and the oil lubricated components therein, e.g. Bearings and gears, in an angular or rotational direction of the compressor of -45 ° (FIG. 3B), in an angular or rotational orientation of -0 ° (FIG. 3C) and in an angular or rotational orientation of 45 ° (FIG. 3D) is drained. It is to be understood in light of the present disclosure that, in some embodiments, passage 58B, including drainage port 60B, may be structured to drain oil from the oil pans when the compressor is installed in a first orientation and also when the compressor is in operation is installed a second orientation, which is rotatably shifted by 90 ° from the first orientation, as well as alignments therebetween in others
    Embodiments, and in still other embodiments, more than a rotational displacement of 90 °
    In the description of FIGS. 4A-4D, the oil drain passages 58B and the drain port 60B have partially round cross-sectional shapes. The size, shape and arrangement e.g. the radial and circumferential positions with respect to the oil pans 52B and 54B of the oil drain passage and the discharge port are structured to allow lubricating oil from the oil pans 52B and 54B and the oil lubricated components therein, e.g. Bearings and gears, in an angular or rotational direction of the compressor of -45 ° (Fig. 4B), in an angular or Drehausrichtung of -0 ° (Fig. 4C) in an angular or Drehausrichtung of 45 ° (Fig. 4D) drained becomes. It is to be understood in light of the present disclosure that, in some embodiments, passage 58B, including drainage port 60B, may be structured to drain oil from the oil pans when the compressor is installed in a first orientation and also when the compressor is in operation is installed a second orientation which is rotatably displaced by 90 ° from the first orientation, as well as alignments therebetween in other embodiments, and in still other embodiments more than a rotational displacement of 90 °
    With reference to FIGS. 5 and 6, some aspects of one non-limiting example of FIG
    Compressor 14 further illustrated. Figure 5 illustrates an auxiliary bleed passage 72B operable to drain oil from bearings 40B in the sump 52B into the bleed passage 58B. FIG. 6 illustrates the discharge port 60B of compressor 14 in fluid communication with passage 56B of transmission 16. FIG. 6 also illustrates a gear 74B on shaft 24B to receive mechanical power from transmission 16 to drive compressor 14.
    With reference to Figs. 7 and 8, some aspects of non-limiting examples of
    Compressor systems 10 and 64 according to some embodiments of the present invention illustrated. Fig. 7 illustrates the compressor 14 installed on the transmission 16 in a 45 ° orientation as a first stage of a two-stage compressor system, while Fig. 8 illustrates the same compressor 14 but installed on the transmission 66 in an -45 ° orientation as the second stage of a larger two-stage compressor system. In the compressor system 10, air is delivered in a vertically downwardly facing direction 76 and diverted horizontally to the right in a direction 78. By changing the rotational orientation by 90 °, the compressor 14 is aligned on the transmission 66 in a manner that air is supplied to it in a direction 80 to the right and is derived in a vertical upward direction 82 from the compressor. The directions 80 and 82 correspond to the directions that may be preferred. The ability to vent oil adequately in more than one direction allows for easy scaling of a compressor system while maintaining familiar features, structures, spatial relationships between components of the compressor systems, and the like, and comes from size, shape, and position, e.g. the radial and circumferential positions with respect to the oil sumps 52B and 54B, the oil drain passage (e.g., 58A and / or 58B), and the discharge port (e.g., 60A and / or 60B) used in some embodiments of the present invention. For example, it can be seen that directions 80 and 82 at compressor 14 installed in compressor system 64 correspond to directions 84 and 86 at compressor 12 for air intake and exhaust when installed as a second stage compressor of a two stage compressor system. By structuring the built cast oil drain passages 58A, 58B to discharge oil in various rotational orientations, including orientations shifted by 90 °, some embodiments of the compressors 12 and 14 may be installed in various compressor systems as first or second stage compressors without changing the compressor hardware, or by performing minimal hardware changes with respect to the compressors that do not use the built cast oil drain passages 58A, 58B as described herein.
    Embodiments of the present invention include a compressor system comprising: a compressor including a compressor
    A plurality of intermeshing compressor elements, each intermeshing compressor element having first and second ends; a first plurality of oil lubricated bearings supporting the first end of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second end of each intermeshing compressor element; a compressor housing that radially intermeshes one another
    Compressor elements between the first ends and the second ends comprises; and a passageway formed in the compressor housing and spaced from the intermeshing compressor elements, the passageway through the housing extending between the first ends and the second ends of the intermeshing compressor elements, the passageway being structured to receive oil from at least one of the first and second ends drain the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings.
    In a refinement, the compressor system further includes a first gear, a second gear driven by the first gear, the first gear coupled to a first intermeshing compressor element, the second gear coupled to a second intermeshing compressor, and wherein the passage is ready to drain oil which is used to lubricate the first gear and the second gear.
    In a further refinement, the passageway includes a single discharge port and is operable to drain oil used to lubricate the first plurality of bearings and the second plurality of bearings and to discharge the drained oil through the single discharge port.
    In yet another refinement, the compressor system further includes a first oil pan and a second oil pan, wherein the first oil pan is disposed adjacent the first ends of the intermeshing compressor elements and receives the first plurality of bearings; and wherein the second oil pan is disposed adjacent the second ends of the intermeshing compressor elements and receives the second plurality of bearings; wherein the passage extends between the first oil pan and the second oil pan, is in fluid communication with both the first oil pan and the second oil pan, and is operable to drain oil from the first oil pan and the second oil pan.
    In yet another refinement, one of the first and second sumps is at least partially disposed in the molded drain housing.
    In yet another refinement, this includes
    Compressor housing further a molded rotor housing and a cast discharge housing, wherein the passage of a first molded passage in the molded rotor housing and a second molded passage in the cast discharge housing is formed.
    In a further refinement, the compressor system is configured as an oil-free screw compressor system.
    In yet another refinement, this includes
    Compressor housing a casting; and wherein the passage is a cast passage within the casting.
    In yet another refinement, this includes
    Compressor system further at least one of a transmission and an oil tank, wherein the passage is in fluid communication with at least one of the transmission and the oil tank and is operable to drain oil to the at least one of the transmission and the oil tank without the use of external piping.
    In yet a further refinement, the passageway is a first passage, further comprising a built-in second passageway in the at least one of the transmission and the oil tank for discharging oil from the compressor; the first passage being a
    Drain port is in direct fluidic communication with the second passage and is operable to discharge the drained oil in the second passage.
    In a further refinement, the passage is structured to drain lubricating oil from at least one of the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is installed in a second orientation which is rotatably displaced from the first orientation.
    In yet another refinement, the passageway is structured to vent oil from the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is installed in a second orientation which is rotatably shifted by 90 ° from the first orientation.
    Embodiments of the present invention include an oil-free screw compressor comprising: a plurality of intermeshing compressor elements, each intermeshing compressor element having first and second ends; a first plurality of oil lubricated bearings supporting the first ends of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second ends of each intermeshing compressor element; a compressor housing that radially intermeshes one another
    Compressor elements between the first ends and the second ends comprises; and a passage formed in the compressor housing and radially from the intermeshing
    Compressor elements is spaced, wherein the passage is structured to discharge oil from at least the first plurality of oil-lubricated bearings and the second plurality of oil-lubricated bearings.
    In a refinement, the compressor system further includes a first gear and a second gear driven by the first gear, the first gear coupled to a first intermeshing compressor element, the second gear coupled to a second intermeshing compressor element, and wherein the passage is ready to drain oil which is used to lubricate the first gear and the second gear.
    In a further refinement, the passage is operable to drain oil from the first gear, the second gear, the first plurality of bearings, and the second plurality of bearings, and is structured to drain the drained oil through a single discharge port.
    In yet another refinement, the compressor further includes a first oil pan and a second oil pan, wherein the first oil pan is disposed adjacent the first ends of the intermeshing compressor elements and receives the first plurality of bearings; and wherein the second oil pan is disposed adjacent the second ends of the intermeshing compressor elements and receives the second plurality of bearings; wherein the passage is in fluid communication with the first oil pan and the second oil pan and is structured to drain oil from the first oil pan and the second oil pan.
    In yet another refinement, this includes
    Compressor housing a casting; and wherein the passage is a cast passage within the casting.
    In yet another refinement, this includes
    Compressor housing a molded rotor housing and a cast discharge housing, which is fixed to the molded rotor housing, wherein the passage of a first molded passage in the molded rotor housing and a second molded passage in the cast discharge housing is formed.
    In a further refinement, the compressor is configured to be mounted on at least one of a transmission and an oil tank, and wherein the compressor is structured to receive oil from the at least one of the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings drain at least one of the transmission and the oil tank without the use of external piping.
    In yet a further refinement, the passageway is positioned to vent oil from at least one of the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is in a second orientation is installed, which is rotatably displaced from the first orientation.
    In yet a further refinement, the passageway is positioned to discharge oil from the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is installed in a second orientation which is rotatably shifted by 90 ° from the first orientation.
    Embodiments of the present invention include a single compressor system comprising: a plurality of intermeshing compressor elements, each intermeshing compressor element having a first end and a second end; a first plurality of oil lubricated bearings supporting the first end of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second end of each intermeshing compressor element; a compressor housing that radially intermeshes one another
    Compressor elements between the first ends and the second ends comprises; and means for draining oil from the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings. While the invention has been described in conjunction with what is presently believed to be the most practical and most preferred embodiment, it is to be understood that the invention is not to be limited to the embodiment (s) disclosed herein, but rather On the contrary, it is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims, the scope of which must be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures as in accordance with Law allows. Further, it should be understood that the use of the word "preferable", "preferred" or "preferred" in the above description indicates that the feature so described is more desirable, but may not be necessary, and any embodiment thereof is not deemed to be within the scope of the invention, this scope being defined by the following claims. In reading the claims, it is intended that when words such as e.g. "One", "at least one" and "at least one section" are not intended to limit the claim to one subject only if the claim does not specifically indicate otherwise, and the phrase "at least one section "And / or" a section "is used, the article may include a section and / or the entire article, unless specifically stated otherwise.
    characters
    Fig. 7 + Fig. 8
    权利要求:
    Claims (20)
    [1]
    claims
    A compressor system comprising: a compressor comprising a plurality of intermeshing compressor elements, each intermeshing compressor element having a first end and a second end; a first plurality of oil lubricated bearings supporting the first end of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second end of each intermeshing compressor element; a compressor housing radially enclosing the intermeshing compressor elements between the first ends and the second ends; a passage formed in the compressor housing and spaced from the intermating compressor elements, the passage through the housing extending between the first ends and the second ends of the intermeshing compressor elements, the passage being structured to remove oil from at least one of the first and second ends drain first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings; and a first gear and a second gear driven by the first gear, the first gear coupled to a first intermeshing compressor element, the second gear coupled to a second intermeshing compressor, and wherein the passage is operable to Drain oil that is used to lubricate the first gear and the second gear.
    [2]
    2. The compressor system according to claim 1, wherein the passage includes a single discharge port and is operable to discharge oil used to lubricate the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings, and the drained oil through the derive only discharge opening.
    [3]
    3. The compressor system of claim 1, further comprising a first oil pan and a second oil pan, wherein the first oil pan adjacent the first ends of the intermeshing compressor elements is arranged and receives the first plurality of oil-lubricated bearings; and wherein the second oil pan is disposed adjacent to the second ends of the intermeshing compressor elements and receives the second plurality of oil lubricated bearings, the passage extending between the first oil pan and the second oil pan, in fluid communication with both the first oil pan and is the second oil pan, and is ready to drain oil from the first oil pan and the second oil pan.
    [4]
    4. The compressor system of claim 3, wherein one of the first oil pan and the second oil pan is at least partially disposed in the molded drain housing.
    [5]
    5. The compressor system of claim 1, wherein the compressor housing further comprises a molded rotor housing and a cast discharge housing, the passage being formed of a first molded passage in the molded rotor housing and a second molded passage in the cast discharge housing.
    [6]
    6. The compressor system of claim 1, wherein the compressor system is configured as an oil-free screw compressor system.
    [7]
    7. The compressor system of claim 1, wherein the compressor housing comprises a casting; and wherein the passage is a cast passage within the casting.
    [8]
    8. The compressor system of claim 1, further comprising at least one of a transmission and an oil tank, wherein the passage is in direct fluid communication with at least one of the transmission and the oil tank and is operable to supply oil to the at least one of the transmission and the oil tank without to drain the use of external piping.
    [9]
    9. The compressor system of claim 8, wherein the passage is a first passage, further comprising a built-in second passage in the at least one of the transmission and the oil tank to drain oil from the compressor; wherein the first passage includes a drain port in direct fluid communication with the installed second passage and is operable to drain the drained oil into the installed second passage.
    [10]
    10. The compressor system of claim 1, wherein the passage is structured to drain lubricating oil from at least one of the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is in is installed a second orientation, which is rotatably displaced from the first orientation.
    [11]
    11. The compressor system of claim 10, wherein the passage is structured to drain oil from the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is in a second Orientation is installed, which is rotated by 90 ° from the first orientation.
    [12]
    12. An oil-free screw compressor comprising: a plurality of intermeshing compressor elements, each intermeshing compressor element having first and second ends; a first plurality of oil lubricated bearings supporting the first ends of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second ends of each intermeshing compressor element; a compressor housing radially enclosing the intermeshing compressor elements between the first ends and the second ends; a passage formed in the compressor housing and radially spaced radially from the intermeshing compressor elements, the passage being structured to discharge oil from at least the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings; and a first gear and a second gear driven by the first gear, the first gear coupled to a first intermeshing compressor element, the second gear being coupled to a second intermeshing compressor element, and wherein the passage is operable to Drain oil that is used to lubricate the first gear and the second gear.
    [13]
    13. The compressor of claim 12, wherein the passage is operable to drain oil from the first gear, the second gear, the first plurality of oil-lubricated bearings and the second plurality of oil-lubricated bearings, and is structured to the drained oil through the only Derive discharge opening.
    [14]
    14. The compressor of claim 12, further comprising a first oil pan and a second oil pan, wherein the first oil pan adjacent the first ends of the intermeshing compressor elements is arranged, and receives the first plurality of oil-lubricated bearings; and wherein the second oil pan is disposed adjacent the second ends of the intermeshing compressor elements and receives the second plurality of oil lubricated bearings; wherein the passage is in fluid communication with the first oil pan and the second oil pan and is structured to drain oil from the first oil pan and the second oil pan.
    [15]
    15. The compressor of claim 12, wherein the compressor housing comprises a casting; and wherein the passage is a cast passage within the casting.
    [16]
    16. The compressor of claim 15, wherein the compressor housing comprises a molded rotor housing and a cast discharge housing attached to the molded rotor housing, the passage being formed of a first molded passage in the molded rotor housing and a second molded passage in the cast discharge housing.
    [17]
    17. The compressor of claim 12, wherein the compressor is configured to be mounted on at least one of a transmission and an oil tank, and wherein the compressor is structured to remove oil from the at least one of the first plurality of oil lubricated bearings and the second plurality from oil-lubricated bearings into at least one of the transmission and oil tank without the use of external piping.
    [18]
    18. The compressor of claim 12, wherein the passage is positioned to drain oil from at least one of the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is in is installed a second orientation, which is rotatably displaced from the first orientation.
    [19]
    19. The compressor of claim 18, wherein the passage is positioned to drain oil from the first plurality of oil lubricated bearings and the second plurality of oil lubricated bearings when the compressor is installed in a first orientation and also when the compressor is in one second orientation is shifted, which is rotatably shifted by 90 ° from the first orientation.
    [20]
    20. A compressor system comprising: a plurality of intermeshing compressor elements, each intermeshing compressor element having a first end and a second end; a first plurality of oil lubricated bearings supporting the first end of each intermeshing compressor element; a second plurality of oil lubricated bearings supporting the second end of each intermeshing compressor element; a compressor housing radially enclosing the intermeshing compressor elements between the first ends and the second ends; and a passage to drain oil from the first plurality of oil lubricated bearings, the second plurality of oil lubricated bearings, a first gear and a second gear, and wherein the passage is structured to discharge the drained oil through a single discharge port.
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    同族专利:
    公开号 | 公开日
    BE1023287A1|2017-01-20|
    US20160115956A1|2016-04-28|
    US9828995B2|2017-11-28|
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    法律状态:
    2018-02-22| FG| Patent granted|Effective date: 20170120 |
    2018-02-22| PD| Change of ownership|Owner name: INGERSOLL-RAND INTERNATIONAL LIMITED; IE Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION; FORMER OWNER NAME: GHH-RAND SCHRAUBENKOMPRESSOREN GMBH Effective date: 20180109 |
    2020-08-19| PD| Change of ownership|Owner name: INGERSOLL-RAND INDUSTRIAL IRELAND LIMITED; IE Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION, SPLITSING; FORMER OWNER NAME: GHH-RAND SCHRAUBENKOMPRESSOREN GMBH Effective date: 20200527 |
    优先权:
    申请号 | 申请日 | 专利标题
    US14/522,270|2014-10-23|
    US14/522,270|US9828995B2|2014-10-23|2014-10-23|Compressor and oil drain system|
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