• 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 filter assembly is provided having a generally cylindrical, very large housing forming a housing edge. The filtering element is disposed in the housing for filtration of the fluid. There is also provided a generally circular single tapping plate having a fluid inlet port, a fluid outlet port, and mounting means for removably mounting the filter assembly to the fluid circulation system. The single tapping plate further has a generally U-shape and wings extending radially outward from the U-shape to form a seal retaining groove. The edge of the housing surrounds the tapping plate and folds inward over the wings of the tapping plate such that the free end of the housing edge terminates in a generally seal retaining groove. The filter assembly also includes an outer seal having a generally rectangular cross section retained in the seal retaining groove. The wing of the tapping plate increases the outer diameter of the housing and the filtration area of the filtering element without increasing the outer seal diameter.
    公开号:KR20020011404A
    申请号:KR1020017014027
    申请日:2000-05-03
    公开日:2002-02-08
    发明作者:랭스도르프브라이언제이.；버키리차드알.；림신더크리스토퍼알.
    申请人:크리스 로저 에이취.；얼라이드시그날 인코퍼레이티드；
    IPC主号:
    专利说明:

    J-SHAPED SEAM TAPPING PLATE WITH GASKET GROOVE FOR SPIN-ON FILTER ASSEMBLIES}
    [2] Fluid filters are commonly used in engine lubrication systems, hydraulic systems, and fuel systems to remove solid materials such as dust and abrasives from circulated fuel. Traditionally, a fluid filter includes a filter element or element disposed within the body, casing or housing. The tapping plate or cover is fastened to the body to surround the filtering member. The tapping plate includes a plurality of openings through which the fluid flow passes through the filter member. Fluid flow may be guided into the filter through the central opening of the tapping plate or through a plurality of circumferential openings disposed radially relative to the tapping plate. Typically, the fluid filter is mounted to the engine or hydraulic system by spinning the tapping plate onto a filter mount extending from the engine or hydraulic system. This type of mounting method is commonly known as a spin on type.
    [3] Traditionally, a uniquely shaped first sealing element or gasket extends from the outside of the tapping plate to seal the volume between the tapping plate and the filter mount. Depending on the particular design of the engine or hydraulic system, the sealing element may be located in an internal position or an external position relative to the body diameter. The unique shape of this special gasket allows the gasket to be fastened to the tapping plate more easily. As in US Pat. Nos. 4,834,885 and 4,969,994, uniquely molded gaskets have the obvious disadvantage of requiring special fabrication techniques to produce. This particular manufacturing technique is almost inherently expensive.
    [4] As an alternative, diecast tapping plates are sometimes used. Typically, this diecast tapping plate includes special seal holding means for holding the las cut gasket. The las cut gasket is produced more easily and economically than the special gasket described above. However, die cast tapping plates are generally more expensive to machine and manufacture compared to stamping molded tapping plates. Some conventional designs have attempted to be used as tapping plate assemblies in combination with stamping molded covers and steel base plates. The gasket is held in the cover and the cover is welded to the base plate for additional rigidity. An example of this combination design is shown in US Pat. No. 5,490,930. However, this design requires additional parts and process steps and inherently increases manufacturing costs.
    [5] Typically, the second seal is used to prevent fluid flow between the tapping plate and the body. An example of this second seal design is shown in US Pat. No. 4,369,113. Typically, the second seal is fastened in place by a series of metal folds or double rolling formed in the body and the tapping plate. Although this arrangement appears to be effective temporarily, maximum leak protection cannot be achieved during harsh operating conditions. In particular, the two seal design cannot prevent fluid leakage when exposed to static pressure or fluid impulses. Typically, these harsh operating conditions occur in industrial or heavy equipment applications, but may also occur in passenger vehicle applications.
    [6] Metal folds are also commonly used to connect and seal the body to the tapping plate. In particular, the free end of the tapping plate is rolled or crimped together with the free end of the body. This combination is typically rolled twice and crimped to form beads around the edge of the filter assembly. In addition, although this method appears to be effective temporarily, maximum leak protection cannot be achieved during harsh conditions. Similar to the two seal design, double rolling beads cannot prevent fluid leakage when exposed to static pressure or fluid impulses. Moreover, double-rolling seams are relatively expensive to manufacture and require seam assembly control and / or additional sealing compound to ensure reliable interconnection when deformation occurs in seam retention and welds. Typically, sealing compounds are used in manufacturing to limit fluid leakage through the interconnects of the body and the tapping plate.
    [7] Accordingly, there is a need in the related prior art to provide a spin on fluid filter having a tapping plate that can effectively maintain a more economical, las cut gasket than a more expensive uniquely molded gasket. Moreover, in the related prior art, there is a need to provide a stamping molded tapping plate capable of holding a ras cut gasket.
    [1] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spin-on fluid filter, in particular a J-shaped seam for a spin-on fluid filter comprising a gasket groove for receiving and retaining a lathe-cut gasket. A tapping plate (J-shaped seam tapping plate).
    [14] 1 is a bottom perspective view of a partial cross section of a spin on filter assembly having a J seam tapping plate for a lath cut gasket in accordance with the principles of the present invention;
    [15] 2 is a partial cross-sectional view taken along line 2-2 of FIG.
    [8] According to the present invention, a spin on fluid filter of advantageous configuration is provided.
    [9] It is an object of the present invention to provide a spin-on fluid filter having a tapping plate that can effectively maintain a more economical, las cut gasket than a uniquely molded gasket. It is also an object of the present invention to provide a stepping molded tapping plate capable of holding a lath cut gasket.
    [10] According to a preferred embodiment of the present invention, there is provided a filter assembly having a generally cylindrical housing forming a housing edge. The filter element is disposed in the housing for filtering the fluid. Also provided is a generally circular single tapping plate having at least one fluid inlet port, at least one fluid outlet port, and mounting means for removably mounting the filter assembly to the fluid circulation system. The single tapping plate includes inverted outer edges and ridges. The ridge is formed substantially adjacent the inverted outer edge to form a seal retaining groove. The housing edge surrounds the tapping plate such that the free end of the housing edge terminates in a generally seal retaining groove and is folded inward over the inverted outer edge of the tapping plate. The filter assembly also includes an outer seal having a generally rectangular cross section retained in the seal retaining groove.
    [11] According to a more preferred embodiment of the invention, the outer seal is an economically molded ras cut gasket and the tapping plate has a stamped molded piece configuration.
    [12] Other areas of applicability of the present invention will become apparent from the following detailed description. However, although the description and specific examples show preferred embodiments of the invention, they are merely for purposes of illustration and many variations and modifications within the scope of the spirit and scope of the invention will be apparent to those skilled in the art from this description. Should understand.
    [13] The invention is better understood from the description and the accompanying drawings.
    [16] (Detailed Description of the Preferred Embodiments)
    [17] The description of the preferred embodiments below is merely illustrative in nature and does not limit the invention, its application or use. For example, the tapping plates of the present invention may find utility in a variety of applications, such as, but not limited to, in lubrication systems, hydraulic systems, and fuel systems.
    [18] In the figure, a filtering device or assembly 10 according to the principles of the invention is shown. The filtering assembly 10 is mounted to a filter mount (not shown) of the engine. In particular, the filtering assembly 10 is operatively mounted and in communication with a lubrication system, hydraulic system, or other fluid circulation system that benefits from fluid filtration.
    [19] Filtering assembly 10 includes a generally cylindrical sleeve or barrier 12 disposed within housing, casing, or support structure 14. The cylindrical sleeve 12 includes a plurality of openings 16 formed through the sleeve. The first volume 18 is formed inside the cylindrical sleeve 12. The second volume 20 is formed outside the cylindrical sleeve 12 and inside the housing 14. The opening 16 of the cylindrical sleeve 12 allows the filtered fluid to flow from the second volume 20 to the first volume 18, or vice versa.
    [20] The filtering assembly 10 further includes a porous filtering element or member 22 for removing solid material, such as dust and abrasives, from the circulating fluid. The filtering member 22 is disposed in the second volume 20 adjacent the cylindrical sleeve 12 and extends generally from the top 24 of the housing 14 to the bottom 26 of the housing 14. The filtering member 22 is preferably cylindrical having an outer diameter smaller than the inner diameter of the housing 14 and an inner diameter substantially the same as the outer diameter of the cylindrical sleeve 12. As such, this arrangement forms a fluid channel 28 extending around the top 30, the bottom 32, and the outer diameter 34 of the filtering member 22.
    [21] As in FIG. 1, the tapping or cover plate 36 is connected to the top 24 of the housing 14. The interconnection between the tapping plate 36 and the tapping plate 36 and the housing 14 is described in detail below. The tapping plate 36 includes a plurality of fluid inlet ports 38 positioned adjacent the central threaded opening 40. The fluid inlet port 38 is in fluid communication with the second volume 20, thereby introducing and allowing fluid, such as engine oil, to flow through the filtering member 22. The threaded opening 40 in the center of the tapping plate 28 engages a typical filter mount (not shown) of the engine. As is conventional, the filter mount generally includes a generally flat surface that receives the seal and a central threaded stud that engages and retains the threaded opening of the filter.
    [22] The threaded opening 40 in the center of the tapping plate 28 forms a fluid outlet port 42. The fluid outlet port 42 is in fluid communication with the first volume 18, thus allowing fluid filtered from the filtering member 22 to flow out of the fluid outlet port 42. Accordingly, the fluid path extends from the fluid inlet port 38, the fluid channel 28 through the filtering member 22, and the plurality of openings 16 of the cylindrical sleeve 12 to the fluid outlet port 42. .
    [23] The interconnection between the tapping plate 36 and the tapping plate 36 and the housing 14 is described in detail below. As in FIG. 1, the tapping plate 36 is a generally concave circular piece member having a plurality of fluid inlet ports 38 positioned adjacent to the central threaded opening 40 as described above. The tapping plate 36 is preferably stamped or press molded, allowing the tapping plate 36 to be produced more economically than the diecast plate. In FIG. 2, the tapping plate 36 further forms a tapping plate edge 44 extending around the outer periphery of the tapping plate 36. The tapping plate edge 44 includes an inverted or outwardly outer edge 46 extending from this edge. The inverted outer edge 46 is positioned substantially perpendicular to the adjacency 48 of the tapping plate edge 44. The tapping plate 36 further comprises a ridge or inward U-shaped bend 50 having first and second legs 52, 54, respectively, and formed adjacent to the inverted outer edge 46. Similar to the inverted outer edge 46, the first leg 52 of the ridge 50 is positioned substantially perpendicular to the adjacent portion 48 of the tapping plate edge 44. Inverted outer edge 46, abutment 48, and first leg 52 together form a seal retaining groove 56.
    [24] In order to achieve seamless sealing and reliable sealing between the tapping plate 36 and the housing 14, the housing edge 58 of the housing 14 extends around the top 24 and substantially the tapping plate 36. The inverted outer edge of 46 is folded and folded using conventional mechanical means. The free end of the housing edge 58 is generally positioned such that the free end 60 is substantially terminated in the generally seal retaining groove 56. However, the free end 60 of the housing edge 58 extends around the seal retaining groove and terminates at the volume between the tapping plate and the filter mount (not shown) for improved leakage protection. Such folding of the free end 60 around the inverted outer edge forms an interconnect with a J-shaped profile that minimizes fluid leakage caused by static pressure and fluid impulses. Sealing compound 70 may be disposed between inverted outer edge 46 and housing edge 58 of tapping plate 36 to provide a strong bond between them for improved sealing and torque relief.
    [25] The seal 62 is also provided to minimize fluid leakage between the tapping plate 36 and the filter mount (not shown) of the engine. The seal 62 is a lath cut gasket having a generally rectangular cross section and is preferably located in an outer position adjacent to the inverted outer edge 46. Seal 62 is preferably pressure-fitted to seal retaining groove 56, however alternative methods of retaining seal 62 may be used, depending on the filter application and associated operating conditions. The seal 62 is arranged such that the seal portion 64 of the seal 62 extends beyond the top 66 of the housing edge 58. It should be understood that the seal portion 64 of the seal 62 extends beyond the top portion 66 to help minimize fluid leakage in certain applications.
    [26] The filter assembly of the present invention is advantageous in that the present invention allows the use of a las cut gasket as the first sealing means, compared to a conventional filter assembly. Typically, a las cut gasket is more cost effective to manufacture than the uniquely shaped gaskets often used in conventional filter assemblies. And, the las cut gasket provides an improved sealing surface between the gasket and the filter mount. In addition, the tapping plate of the present invention has the advantage of being more economical in fabrication and assembly since it can hold a ras cut gasket and can be stamped molded. And the filter assembly of the present invention substantially minimizes fluid leakage between the filter housing and the tapping plate by extending the housing edge around the inverted outer edge of the tapping plate. Such an arrangement provides a seamless interconnect and, unlike conventional filter assemblies, is impermeable to fluid leakage and can resist harsh operating conditions such as static pressure and fluid impulses. In addition, the filter assembly of the present invention eliminates the need to use a series of metal folds or double rolls that are expensive to manufacture.
    [27] In describing the present invention, it is apparent that the same may be changed in many ways. Such changes are not to be regarded as a departure from the spirit and scope of the invention, and such changes which are apparent to those skilled in the art are included within the spirit of the following claims.
    [28] According to the present invention, a spin on fluid filter of advantageous configuration is provided.
    [29] A spin-on fluid filter is provided with a tapping plate that can effectively maintain a more economical, las cut gasket than a uniquely molded gasket. There is also provided a stepping molded tapping plate capable of holding a lath cut gasket.
    [30] According to a preferred embodiment of the present invention, there is provided a filter assembly having a generally cylindrical housing forming a housing edge. The filter element is disposed in the housing for filtering the fluid. Also provided is a generally circular single tapping plate having at least one fluid inlet port, at least one fluid outlet port, and mounting means for removably mounting the filter assembly to the fluid circulation system. The single tapping plate includes inverted outer edges and ridges. The ridge is formed substantially adjacent the inverted outer edge to form a seal retaining groove. The housing edge surrounds the tapping plate such that the free end of the housing edge terminates in a generally seal retaining groove and is folded inward over the inverted outer edge of the tapping plate. The filter assembly also includes an outer seal having a generally rectangular cross section retained in the seal retaining groove.
    [31] According to a more preferred embodiment of the invention, the outer seal is an economically molded ras cut gasket and the tapping plate has a stamped molded piece configuration.
    权利要求:
    Claims (11)
    [1" claim-type="Currently amended] A generally circular housing forming a housing edge;
    A filtering element disposed in the housing for filtration of the fluid;
    A mounting means for removably mounting the fluid inlet port, the fluid outlet port, and the filter assembly to the fluid circulation system, the inlet outer edge and the ridge formed substantially adjacent to the inverting outer edge, the housing edge being the A generally circular single tapping plate surrounding the inverted outer edge and folded inward over the inverted outer edge such that the free end of the housing edge terminates generally in the seal retaining groove; And
    An outer seal having a generally rectangular cross section retained in said seal retaining groove; Filter assembly for use in a fluid circulation system comprising a.
    [2" claim-type="Currently amended] 2. The filter assembly of claim 1, wherein the outer seal is a ras cut gasket.
    [3" claim-type="Currently amended] The filter assembly of claim 1, wherein the single tapping plate is stamped.
    [4" claim-type="Currently amended] 2. The filter assembly of claim 1, further comprising a sealing compound disposed between the housing edge and the inverted outer edge of the tapping plate.
    [5" claim-type="Currently amended] 2. A filter assembly according to claim 1, wherein said mounting means comprises a central threaded opening disposed in said single tapping plate and comprising said fluid outlet port.
    [6" claim-type="Currently amended] A generally circular casing forming a casing edge;
    A filtering element disposed in the casing for filtration of fluid;
    Inward U having a central threaded opening for engaging the filter mount of the engine and providing an outlet port for the fluid, comprising an inlet port for the fluid and formed substantially adjacent to the outward outer edge and the outward edge Further having a shape bend to form a seal retaining groove, the housing edge generally enclosing the outward outer edge of the cover plate such that the free end of the housing edge terminates at the seal retaining groove and the outward outer edge of the cover plate A generally circular cover plate folded inwardly from above; And
    Sealing means for preventing fluid leakage between the cover plate and the filter mount of the engine; A spin on fluid filter for an engine having a filter mount, comprising: a.
    [7" claim-type="Currently amended] 7. A spin-on fluid filter according to claim 6, wherein said seal means comprises a lash cut gasket disposed in said retaining groove.
    [8" claim-type="Currently amended] 7. The spin-on fluid filter of claim 6, wherein the single tapping plate is stamped.
    [9" claim-type="Currently amended] 7. The spin-on fluid filter of claim 6, further comprising a seal compound disposed between the casing edge and the outwardly outer edge of the cover plate.
    [10" claim-type="Currently amended] A generally circular housing forming a housing edge;
    A filtering member disposed in the housing for filtration of the fluid;
    Having a central threaded opening for engaging the filter mount of the engine and providing an outlet port for the fluid, stamping molded and comprising an inlet port for the fluid, substantially adjacent to the inverted outer edge and the inverted outer edge A fragmented tapping plate having further formed ridges to form a seal retaining groove, the housing edge surrounding the inverted outer edge of the tapping plate and folded inward over the inverted outer edge of the tapping plate; And
    A lath cut gasket having a generally rectangular cross-section retained in said seal retaining groove; Fluid filter for use in a fluid circulation system comprising a.
    [11" claim-type="Currently amended] 11. The fluid filter of claim 10, further comprising a sealing compound disposed between the housing edge and the inverted outer edge of the tapping plate.
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    同族专利:
    公开号 | 公开日
    MXPA01011136A|2002-06-04|
    CA2371952A1|2000-11-09|
    WO2000066244A1|2000-11-09|
    EP1189670A1|2002-03-27|
    JP2002542923A|2002-12-17|
    US6202859B1|2001-03-20|
    CA2371952C|2011-07-19|
    BR0010281A|2002-07-02|
    AU4693800A|2000-11-17|
    CN1212875C|2005-08-03|
    CN1359309A|2002-07-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-05-03|Priority to US09/304,146
    1999-05-03|Priority to US09/304,146
    2000-05-03|Application filed by 크리스 로저 에이취., 얼라이드시그날 인코퍼레이티드
    2000-05-03|Priority to PCT/US2000/011978
    2002-02-08|Publication of KR20020011404A
    优先权:
    申请号 | 申请日 | 专利标题
    US09/304,146|1999-05-03|
    US09/304,146|US6202859B1|1999-05-03|1999-05-03|Jseam tapping plate with gasket groove for spin-on filter assemblies|
    PCT/US2000/011978|WO2000066244A1|1999-05-03|2000-05-03|J-shaped seam tapping plate with gasket groove for spin-on filter assemblies|
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