• 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:
    An electrically-operated fuel pump is provided for supplying fuel to the fuel injection system of a spark-ignition I.C. engine. The pump comprises a casing wherein there is located a small electric motor and a rotary pumping assembly. The rotor of the motor is drivingly coupled to the impeller of the pumping assembly. The pump also includes a pressure relief valve for preventing the build up of excessive pressures within the casing, and a non-return valve provided at the pump outlet. The pump casing serves not only as a fuel containment member and a mechanical supporting structure, but also as the magnetic frame of the motor stator.
    公开号:SU1025338A3
    申请号:SU813282276
    申请日:1981-05-07
    公开日:1983-06-23
    发明作者:Де Кончини Роберто
    申请人:Вебер Сочиета Пер Ациони (Фирма)；
    IPC主号:
    专利说明:

    2. The pump according to claim 1, the difference is that with the fact that the bearing element is made with a groove that is coaxial
    with a fixed axis, and the safety valve ball is placed in the duct. .
    3. Pump Under item 2, distinguish and and with. the fact that in the inlet pipe made protrusions that form the guide for the spring of the safety valve,
    4. The pump according to claim 1, characterized in that the second support of the fixed axis is made in the form of a cylindrical sleeve, provided
    internal radial protrusions having cylindrical surfaces for a stationary axis and forming passageways between the housing cavity and the discharge pipe, and a central cylindrical protrusion fixed on the radial protrusions and having a saddle surface for the check valve element.
    5, a pump according to claim 4, characterized in that the cylindrical protrusion is made with a collar, and an elastic sealing ring is installed between the last and the end cap of the discharge nozzle.
    1 ,, ... The invention relates to mechanical engineering, in particular to electrically driven booster pumps for internal combustion engines. Famous electrically driven booster pumps for an internal combustion engine with spark ignition, containing a cylindrical floor housing with inlet and exhaust pipes, fired on opposite end covers, mounted inside the housing a fixed axis, soaked on two supports, a drive motor with a rotor and a stator located on the case, an electric motor magnet, a kachayiidy unit having a non-acting element, one of the supports of the fixed axis, and an end cap nozzle - input cavity, stator element travel, communicating through the Kop cavity with the outlet nozzle, and the working rotating member associated with the rotor and located on the fixed axis with the latter, means for supplying current to the electric motor, a safety valve providing bypass fuel out. body cavities into the inlet cavity and having a zeshorny body loaded with a spring, and a non-return valve placed in the outlet branch pipe with a spring-loaded, shut-off element Qj. However, such electrically driven pumping pumps, having safety valves and non-return valves in the form of separate units, are structurally complex and have insufficient efficiency in operation due to the difficulty in selecting and placing the required dimensions of valve nodes. The aim of the invention is to simplify the design and: increase the efficiency of the work. The goal is achieved by the fact that in an electrically driven booster pump for an internal combustion engine with spark per signal, there is a cylindrical hollow body with inlet and outlet connections installed on opposite end caps mounted inside the housing a fixed axis located on two supports, a driving motor with a rotor and a stator, located on the housing, forming an electric motor magnetic circuit, swinging the assembly, having a carrier element, forming one of the supports stationary axis, and with an end face K1ZH1SHKO of the inlet nozzle, half of the inlet, a stator element with an outlet communicated through the housing cavity with a discharge nozzle, and a working rotating member connected to the rotor and located with the latter on a fixed axis, means for applying a current Electrode 11 (hatel, safety valve that provides fuel bypass from the housing cavity to the inlet cavity and having a shut-off member loaded with a spring ... and the one placed in the outlet pipe is a check valve, valve with 5/5), a snoot lock valve axle is made with a longitudinal channel, there is an input window for communication with the internal cavity of the housing / and an output window facing the input cavity, and the shut-off element of the safety valve is made in the form of a ball and. It is located opposite the bottom of the window of the longitudinal channel, with the force of the spring on the ball directed towards the overlap of the output window. the bearing element is made with a groove, coaxially with a fixed axis.
    and the safety valve ball is placed in the groove.
    The protrusions are provided in the inlet nozzle, forming guide lines for the safety valve spring.
    The second support of the fixed axis is made in the form of a cylindrical sleeve, provided with internal radial protrusions; having cylindrical surfaces for a stationary axis and forming passageways between the body cavity and the outlet nozzle, and a central cylindrical protrusion / fixed on the radial protrusions and having a saddle surface for the locking element of the check valve.
    . In addition, the cylindrical protrusion is made with a collar, and an elastic sealing ring is installed between the last and end cap.
    FIG. 1 shows the proposed electrically driven booster pump for a spark ignition internal combustion engine, section; in fig. 2 - a pump with a B4 end cover removed from the casing; in fig. 3 - working rotating body of the swinging unit; in fig. 4 - the second support of the fixed axis; in fig. 5 is the same section; in FIG. b - view L in fig. four; in fig. 7 view B in FIG. four; in fig. 8 shows an embodiment of a safety valve. ,
    The electrically driven booster pump for an internal combustion engine with spark ignition contains a cylindrical hollow body 1 with inlet and outlet nozzles 2 and 3, made in end blocks 4 and 5, mounted inside the body 1 fixed axis b, drive engine with rotor 7 and a stator 8 located on the housing forming the magnetic circuit of the electric motor, swinging the assembly having the carrier element 9, forming with its central opening 10 one of the supports of the fixed axis 6, and with the end cover 4 the input cavity 11 , a stator element 12 with an end cap 13 and a working rotary body 14 connected to the rotor 7 by means of a cam clutch 15 and located with the latter on a fixed axis b, means for supplying current formed by the connector 16j placed in the end cap 5 and movable radially spring-loaded brushes 17 in contact with the collector 18, made on the rotor 7 of the electric motor, a safety valve having a locking member in the form of a ball 19 loaded with a spring 20, and a check valve with a spring-loaded shut-off
    element in the form of a ball 21, loaded with a spring 22.
    The end cap 4 and the carrier 9 are mounted in the cylindrical bore 23 of the housing 1 and are held in the last flange 24, and the end cap 5 in the cylindrical bore 25 of the housing 1 is held by the flange 26.
    To seal the internal cavity 27
    "" Housing 1 installed ring 28j placed between the end cover 4 and the supporting element 9, and the ring 29, placed in the annular groove of the cover 5.
    In carrier element 9;
    5, an inlet slit opening 30 through which fuel enters the working chamber of the swinging unit, and the working rotating member 14 has a ROLLER 1, which form the blades (not shown), which pressurize the fuel through the outlet (not shown) into the inner the cavity 27 of the housing 1.
    25 Fixed axis 6 completed with. ; a longitudinal channel 31 having an inlet port 32 for communication with the internal cavity 27f and an outlet window 33 to which the spring 19 of the pressure valve 20 bears the safety valve ball 19. In the carrier element is performed; Nena groove 34, coaxial with a fixed axis b. In the bore 34, a sleeve 35 is installed, in which 19 is defrosted. Inlet pipe 2 has a flow channel 36, on the walls of which protrusions 37 are formed, forming a spring for the spring. 20, the force of which is directed in the direction of crossing the exit window.
    3.3 ball 19.
    / -,
    The second support of the stationary axis b is made in the form of a cylindrical sleeve 38 installed in a 4) lid 5 and provided with internal radial protrusions 39 and a central, cylindrical protrusion 40СFig.2 4l) fixed on radial protrusions 39. The latter have cylindrical surfaces 41 for stationary the axes and form the passage channels 42 between the cavity 27 of the housing 1 and the flow channel 43 of the outlet nozzle 3. The cylindrical protrusion
    , 40 has a collar 44. Between it and the end face, an elastic sealing ring 45 is installed. A saddle surface 46 serves for the check valve ball 21. The ball 21 is placed in the flow channel 43,
    0; on the walls of which protrusions 47 are formed, forming guides for the spring 22. On the fixed axis 6; a retaining ring 48 is installed, preventing the axial displacement of the rotor 7 relative to the axis 6.
    The working rotating body 14, in which the slots 49 for the rollers are made, is provided with a central sleeve 50, made with an opening 51: YALY of the installation on the fixed axis b, and end cams 52, which together with counter cams (not shown) of the rotor 7 | form a cam clutch 15 (Fig. 3). ; The assembly of an electrically driven booster pump is carried out as follows.
    First, the swinging assembly is assembled, and then a fixed axis 6 is installed inside it to a predetermined depth, onto which the rotor 7 is fitted with engaging the clutch cams 15. The rotor 7 is fixed on the axis b by means of a locking ring 48. After that, the swinging assembly is installed in the housing 1 from the side cylindrical bore 23 (with the flange 24 still not bent). Install the ring 28 and placed in the sleeve, KU 35 ball 19 spring 20 out. The assembly of this side of the pump is completed by pushing the end cover 4 into the bore 23 so as to ensure the spring 20 penetrates the protrusions 37 and compress the ring 28. The end cover 4 retracts before contact with the bearing element 9 of the swing unit, while providing the pre-tensioned g the springs 20 and the hermetic seal of the inner cavity 27 through the ring 28. After that, the flanging 24 is folded down. This completes the assembly of the pump from the side of the swing assembly.
    Then, from the non-return valve side onto the stationary axis, b-stop. Install the sleeve 38 with the sealing ring 45 mounted on the cylindrical protrusion 40. The end cover 5, with the non-return valve pre-installed in it, begins to push the ring 29 and the means for supplying current 1 on the side of the cylindrical bore 25 (the flange 26 is not bent — FIG. 2) In this case, the brushes 17 are arranged so that they can be contacted with the outer surface of the cylindrical sleeve 38. When the end cover 5 of the brush 17 is pushed in s on the surface of the sleeve 38, as shown in FIG. 2, and when the cover 5 is further moved, the brushes 17 are transferred to the collector 18. The cover 5 is moved into the housing 1 up to the stop, at which the brushes 17 are transferred to
    the collector 18, and the cylindrical protrusion enter the flow channel 43 so that the rings 29 and 45 of the inner cavity 27 are sealed, and the spring 22 is compressed to the required preliminary tension. The flange 26 is then folded down. Thus, the assembly of the electrically driven booster pump is completed, the means for supplying current which is then (after mounting on the motor) is connected to a power source.
    The pump works as follows.
    When current is supplied to the motor, the rotor 7 of the last p) and the working body 14 of the swinging unit, rotates. The fuel is sucked from the inlet cavity, 11 and impinges under excessive pressure into the internal cavity 27, from which through the passage channels 42 and the open non-return valve enters the flow channel 43 of the discharge pipe 3 and further to the consumer. The fuel consumption is determined by the speed of rotation of the rotor 7 and the working body 14, and the pressure is steeply given by the moment transmitted to the body 14 from the rotor 7.
    If the pressure of the fuel in the cavity 27 increases too much, the ball 19 of the relief valve moves away from the outlet port 33 and part of the fuel flows through the longitudinal channel 31 and 27 into the inlet cavity 11. This prevents the pump from failing.
    Therefore, an electric drive booster pump, having a simple constructive implementation, is highly efficient in operation.
    In an embodiment of a safety valve as in FIG. 8, the carrier element 9 is made with an additional groove 53 of a much larger diameter than the groove 34. In this groove 53 a ball 19 and a spring 20 of a safety valve are placed. The ball 19 and the spring 20 are held in the support element 9 by means of a ring 54 fixed by means of the projections 55. This simplifies the assembly of the pump.
    It is also possible to form the cylindrical protrusion 40 in the form of a separate part, which, together with a non-return valve, is installed in the / end face 5 before assembly of the pump.
    Thus, the proposed implementation of the electrically driven booster pump provides, with a simple embodiment, a high operating efficiency.
    权利要求:
    Claims (5)
    [1]
    1. ELECTRIC DRIVING PUMP PUMP FOR INTERNAL COMBUSTION ENGINE with spark ignition, comprising a cylindrical hollow body with inlet and outlet pipes made on opposite end caps, a fixed axis mounted inside the housing, mounted on two supports, a drive electrode, a drive electrode forming a magnetic circuit of an electric motor, a pumping unit having a bearing element, forming one of the supports of the fixed axis ^ and with the end cap of the inlet pipe and the inlet cavity, the stator element with the output communicated through the cavity of the housing with the outlet pipe, and the working rotating body associated with the rotor and located with the latter on the fixed axis, means for supplying current to the electric motor, a safety valve that provides fuel bypass from the cavity of the housing in the inlet cavity and having a shut-off element loaded with a spring, and a check valve located in the outlet pipe with a spring-loaded shut-off element, characterized in that, in order to simplify the design and increased I efficiency, stationary axle is provided with a longitudinal channel having an entrance window for communication with the interior of the housing, and the exit port facing the inlet cavity and the relief valve closure member is in the form. ball and is located against the output window of the longitudinal channel, and the spring force on the ball is directed towards the overlapping of the output window.
    2831 9
    [2]
    2. The pump according to π. 1, characterized in that the supporting element is made with a groove coaxial with the fixed axis, and the ball of the safety valve is placed in the groove.
    [3]
    3. The pump according to claim 2, characterized in that in the inlet pipe there are protrusions forming the guides for the safety valve spring.
    [4]
    4. The pump according to π, 1, characterized in that the second support of the fixed axis is made in the form of a cylindrical sleeve provided with internal radial protrusions having cylindrical surfaces for the fixed axis and forming passage channels between the body cavity and the outlet pipe, and the central cylindrical protrusion mounted on radial protrusions and having a saddle surface for the shut-off element of the non-return valve.
    [5]
    5 ; Pump pop. 4, characterized in that the cylindrical protrusion is made with a shoulder, and between the last and the end cap of the outlet pipe is installed an elastic sealing ring ..
    类似技术:
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    同族专利:
    公开号 | 公开日
    IT8003411D0|1980-05-08|
    US4396358A|1983-08-02|
    PL137042B1|1986-04-30|
    AU546332B2|1985-08-29|
    GB2075598A|1981-11-18|
    NL8100674A|1981-12-01|
    PL231038A1|1982-01-18|
    SE449124B|1987-04-06|
    FR2484545A1|1981-12-18|
    GB2075598B|1984-03-07|
    BR8101706A|1982-01-12|
    FR2484545B1|1986-10-17|
    IT1133295B|1986-07-09|
    JPH028138B2|1990-02-22|
    AU7040381A|1981-11-12|
    ES8302204A1|1983-01-01|
    ES501942A0|1983-01-01|
    AR223109A1|1981-07-15|
    KR830005479A|1983-08-20|
    JPS575548A|1982-01-12|
    DE3107845A1|1982-01-21|
    CA1160113A|1984-01-10|
    DE3107845C2|1990-07-05|
    SE8102724L|1981-11-09|
    引用文献:
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    US3023706A|1960-03-24|1962-03-06|Gen Motors Corp|Gear pump and relief valve|
    US3412685A|1966-09-16|1968-11-26|Eaton Yale & Towne|Pump|
    US3418991A|1967-06-12|1968-12-31|Gen Motors Corp|Vehicle fuel system|
    FR1557857A|1968-01-03|1969-02-21|
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    FR2118490A5|1970-12-15|1972-07-28|Frigo Domenico|
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    DE2312024C3|1973-03-10|1981-06-04|Robert Bosch Gmbh, 7000 Stuttgart|Bearing arrangement for the collector rotor of an electric motor for driving a conveyor unit|
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    DE2735917C2|1977-08-10|1986-04-03|Robert Bosch Gmbh, 7000 Stuttgart|Arrangement for pumping fuel from a storage tank to the internal combustion engine of a motor vehicle|
    DE2745800A1|1977-10-12|1979-04-26|Bosch Gmbh Robert|PROCEDURE FOR PUMPING FUEL UNDER PRESSURE AND FUEL FEED PUMP FOR CARRYING OUT THE PROCEDURE|
    DE2831437C2|1978-07-18|1983-12-15|Webasto-Werk W. Baier GmbH & Co, 8035 Gauting|Feed and metering pump|
    US4314796A|1978-09-04|1982-02-09|Sankyo Electric Company Limited|Scroll-type compressor with thrust bearing lubricating and bypass means|
    DE2906224A1|1979-02-17|1980-09-04|Bosch Gmbh Robert|FUEL SUPPLY UNIT|
    DE2922731A1|1979-06-05|1980-12-18|Bosch Gmbh Robert|Electric fuel pump unit - has pumped fuel serving as coolant for electric motor with pump and motor rigidly combined|
    DE3003209A1|1980-01-30|1981-09-10|Robert Bosch Gmbh, 7000 Stuttgart|Electrical connection for fuel pump - has conductive moulding material between terminal post and pump casing|JPS584364Y2|1978-01-18|1983-01-25|
    DE3223515C2|1982-06-24|1993-07-29|Robert Bosch Gmbh, 7000 Stuttgart, De|
    JPH0443258Y2|1984-04-20|1992-10-13|
    JPH0467875B2|1986-11-14|1992-10-29|Kyoraku Sangyo Kk|
    IT1196885B|1986-12-30|1988-11-25|Weber Srl|ELECTRIC FUEL PUMP|
    DE3800336C2|1988-01-08|1990-05-31|Leistritz Ag, 8500 Nuernberg, De|
    JPH0615605Y2|1988-03-04|1994-04-27|豊丸産業株式会社|Prize winning device for pachinko machines|
    JPH0615604Y2|1988-03-05|1994-04-27|豊丸産業株式会社|Prize ball selection device for pachinko machines|
    US4948346A|1989-05-18|1990-08-14|Walbro Corporation|Fuel pump mount for reduction of vibration transmission|
    US5175463A|1989-08-07|1992-12-29|Kirkwood Industries|Carbon commutator|
    US5044344A|1989-10-16|1991-09-03|Walbro Corporation|Pressure-responsive fuel delivery system|
    ES2019781A6|1990-01-15|1991-07-01|Weber Espana Sa|Petrol pump for fuel injection systems|
    JPH0621507Y2|1990-11-09|1994-06-08|株式会社平和|Ball storage device for pachinko machines|
    JP2651963B2|1991-07-17|1997-09-10|純一 高崎|Rotor and manufacturing method thereof|
    DE4201401A1|1992-01-21|1993-07-22|Bosch Gmbh Robert|Displacement pump conveying fuel in motor vehicle - has drive motor installed into jar-shaped housing as complete prefabricated component of motor housing|
    DE29700031U1|1997-01-02|1998-04-30|Bosch Gmbh Robert|Fuel delivery unit|
    US6231318B1|1999-03-29|2001-05-15|Walbro Corporation|In-take fuel pump reservoir|
    US6227819B1|1999-03-29|2001-05-08|Walbro Corporation|Fuel pumping assembly|
    US20040202557A1|2003-02-09|2004-10-14|Shigeru Suzuki|Electric pump|
    EP2840689B1|2013-08-20|2019-10-02|Pierburg Pump Technology GmbH|Motor vehicle device and method for fixing a plug to a motor vehicle device|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT03411/80A|IT1133295B|1980-05-08|1980-05-08|ELECTRICALLY OPERATED FUEL PUMP, SUITABLE FOR USE IN INJECTION SYSTEMS FOR INTERNAL COMBUSTION ENGINES WITH COMMAND IGNITION|
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