WO2006038347A1 - 密封装置 - Google Patents
密封装置 Download PDFInfo
- Publication number
- WO2006038347A1 WO2006038347A1 PCT/JP2005/010318 JP2005010318W WO2006038347A1 WO 2006038347 A1 WO2006038347 A1 WO 2006038347A1 JP 2005010318 W JP2005010318 W JP 2005010318W WO 2006038347 A1 WO2006038347 A1 WO 2006038347A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing device
- metal ring
- plate
- claw
- close
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/12—Mounting or assembling
Definitions
- the present invention relates to a sealing device according to a sealing technique, and more specifically, for example, used as a bonded piston seal (BPS) in an automatic transmission (such as an AT or CVT) of a vehicle such as an automobile.
- BPS bonded piston seal
- the present invention relates to a sealing device suitable for the above.
- a bonded piston seal 51 shown in FIG. 11 is known, and the bonded piston seal 51 has a metal ring 52 and a seal portion 53 such as packing supported by the metal ring 52. Then, the metal ring 52 of the bonded piston seal 51, which is displaced in the vertical direction in the figure by the pressure supply, is brought into close contact with the clutch plate 54, and the clutch plate 54 is pressed by the metal ring 52, so that the clutch is engaged. Is doing.
- a plate panel (including wave springs or finger springs) 55 is installed as a single component to reduce the impact when the clutch is engaged (at the time of shifting).
- the shift shock prevention function at the time of clutch engagement is improved.
- the plate panel 55 which is a separate part, is interposed between the metal ring 52 and the clutch plate 54 as described above, so that the number of parts and the number of assembly operations are reduced. This has the disadvantage of increasing costs.
- Patent Document 1 Japanese Patent No. 3515634
- the present invention reduces the number of parts and assembly man-hours because it is not necessary to interpose a plate panel as a separate part between the metal ring and a mating member such as a clutch plate. It is an object of the present invention to provide a sealing device that can be used.
- a bar of a claw-like close-contact portion that is integrally formed with a metal ring instead of the plate panel.
- the purpose is to provide a sealing device devised to increase the number of cats and improve the durability.
- a sealing device includes a metal ring and a seal portion such as a packing supported by the metal ring.
- the close contact part is integrally formed.
- the sealing device according to claim 2 of the present invention is the sealing device according to claim 1, wherein the claw-shaped close contact portion has a planar shape in a radial direction of the metal ring from the root to the tip. It is characterized by being provided outward.
- the sealing device according to claim 3 of the present invention is the sealing device according to claim 1, wherein the claw-like close-contact portion has a planar shape and a root force of the claw-shaped close portion toward the tip in the circumferential direction of the metal ring. It is characterized by being provided toward one side.
- the sealing device according to claim 4 of the present invention is the sealing device according to claim 1, wherein the claw-like close-contact portion is formed in a bifurcated shape in a planar shape so that both the circumferential directions of the metal ring are It is characterized by being provided for
- the sealing device according to claim 5 of the present invention is the sealing device according to any one of claims 1 to 4, wherein the claw-like close contact portion has a plate width dimension from the root to the tip. Either one or both of the plate thickness dimensions are formed so as to be gradually reduced, thereby dispersing the concentrated stress generated during axial displacement of the claw-shaped close portion throughout the nail, reducing the maximum stress, and repeatedly It is characterized by improved deformation durability.
- a sealing device is the sealing device according to any one of claims 1 to 5, wherein the sealing device is a bonded piston seal used in an automatic transmission.
- the mating counterpart member is a clutch plate that is pressed by the bonded piston seal, and a claw-like close-contact portion is integrally formed at a close portion of the metal ring of the bonded piston seal with respect to the clutch plate. Also characterized by It is.
- a claw-shaped close portion that exhibits a claw-like shape and exerts a panel force against the assembly counterpart member is integrally formed at the close-contact portion of the metal ring. Therefore, instead of the plate panel in the prior art, the claw-shaped close portion exhibits a banquet effect.
- the planar shape of the claw-shaped close contact portion is provided from the root to the tip of the metal ring in the radially outward direction (Claim 2), or the root force of the metal ring to the tip of the circle. (Claim 3)
- the planar shape is bifurcated and provided in both the circumferential directions, the number of parts that exert panel action increases. Therefore, the panel power can be increased (claim 4).
- the claw-shaped close contact portion may be formed so that the plate width dimension and the plate thickness dimension are constant with the root force also extending to the tip.
- the claw-like close contact portion is generated during panel operation. Since stress is concentrated at the base, it may not be able to obtain a large panel power and durability may not be so good. Therefore, in order to improve this point, it is preferable to form one or both of the plate width dimension and the plate thickness dimension gradually from the base to the tip. Then, it is possible to suppress the concentration of stress at the base, disperse the stress throughout the nail, reduce the maximum stress, and improve the durability of repeated deformation (claim 5).
- the present invention has the following effects.
- the claw-like close contact portion integrally formed at the close contact portion of the metal ring exhibits a panel action. It is possible to omit the panel panel, which is a separate part. Therefore, the number of parts and the number of assembling operations can be reduced as much as the panel panel is omitted, and a cost-effective sealing device can be provided.
- the claw-like close contact portion is provided. Therefore, a relatively large panel force can be obtained, and the durability of the claw-like close contact portion can be improved. Furthermore, since the concentrated stress is reduced, plastic deformation occurs and the displacement of the claw-shaped close contact portion can be greatly improved.
- FIG. 1 is a plan view of a bonded piston seal according to a first embodiment of the present invention.
- FIG. 3 Half-sectional view of the bonded piston seal, with a cross-sectional view taken along line A-A in Fig. 1.
- FIG. 4 is a bottom view of a bonded piston seal according to a second embodiment of the present invention.
- FIG. 5 Front view of the principal part of the bonded piston seal, as seen in the direction of arrow B in Fig. 4.
- FIG. 6 Enlarged view of the claw-like close contact portion of the bonded piston seal, (A) is a plan view thereof, and (B) is a front view thereof.
- FIG. 7 is a bottom view of a bonded piston seal according to a third embodiment of the present invention.
- FIG. 8 Front view of the main part of the bonded piston seal, as seen in the direction of arrow C in Fig. 7.
- FIG. 9 is a bottom view of a bonded piston seal according to a fourth embodiment of the present invention.
- FIG. 10 is an enlarged view of the claw-like close contact portion of the bonded piston seal, in which (A) is a plan view thereof and (B) is a front view thereof.
- FIG. 11 Cross-sectional view of bonded piston seal according to conventional example
- the present invention includes the following embodiments.
- a plate vane having a panel force extending in the radial direction (claw-shaped close portion), an L-shaped plate pannet having a panel force extending in the circumferential direction, or the circumference
- a T-shaped plate panem with a panel force extending in the direction is provided.
- a plate vane having a plate panel function, which functions as a plate panel, is provided on the outer peripheral portion of the BPS main body to enable integration.
- the plate pannet has a shape in which the plate thickness is reduced and the arm length in the radial direction is extended, and the panel force is controlled without plastic deformation in consideration of the width dimension. enable.
- the main premise is to prevent plastic deformation and fatigue rupture (with the generated stress of the nail portion within the limits of the yield stress and fatigue limit characteristics of the steel material). If there is a limit to increasing the length, the panel force is controlled by further reducing the thickness of the plate panel.
- the invention according to claim 5 includes the following embodiments.
- both or one of the plate width and the plate thickness of the plate pannet fixing portion is formed so that the fundamental force gradually decreases toward the tip.
- the reduction ratio of the plate width and plate thickness of the plate pannet is formed by a straight line or a curve. Moreover, it may change to another straight line or curve stepwise from the middle. In the section where the plate width and thickness of the plate panome are decreased, the basic force of the plate panome is not limited to the tip, and may be reduced only in the middle.
- the panel pannet having the panel force of the present invention is effective not only on the outer peripheral side (outer side) but also on the inner peripheral side (inner side), and the snap ring fixing in the AT structure is effective. It can also be applied to a part (for example, a centrifugal hydraulic pressure cancel plate (or seal)), and the gap play can be eliminated by the panel force. In other words, it can also be applied to portions that are not suitable for gap play due to fixing, joining, connection, etc. between metal rings in the AT structure.
- FIG. 1 shows a plane of a bonded piston seal 1 as a sealing device according to a first embodiment of the present invention
- FIG. 2 shows a bottom surface of the seal 1.
- FIG. 3 is a half sectional view of the seal 1 showing an enlarged sectional view taken along line AA in FIG.
- the bonded piston seal 1 As shown in FIG. 3, the bonded piston seal 1 according to this embodiment is incorporated in the cylinder of the AT nosing 14 together with the clutch plate 11, the return spring 12, the cancel seal 13, and the like.
- hydraulic pressure is introduced into the pressure chamber 15 from a pressure port (not shown), it is displaced downward against the elasticity of the return spring 12 to press the annular clutch plate 11 of the multi-plate clutch structure and to engage the clutch.
- the return spring 12 returns upward due to the elasticity of the return spring 12. Therefore, due to this reciprocating function, the bonded piston seal 1 is sometimes referred to as an automatic transmission piston.
- the bonded piston seal 1 first has a metal ring 2 formed by pressing a sheet metal (steel plate), and each of the outer periphery and inner periphery of the metal ring 2 has rubber-like elasticity.
- a seal 3 made of a material knock (seal lip) is attached (baked and bonded). These seal portions 3 are slidably in close contact with the inner surface of the housing 14 to seal the hydraulic pressure or the like.
- an outward flange portion 4 is provided as a close contact portion that is in close contact with the plane of the clutch plate 11 and presses the clutch plate 11 upward and downward in the figure. As described above, if the flange portion 4 directly presses the clutch plate 11, a plate panel which is a separate part is required between the clutch plate 11.
- the flange portion 4 has a claw shape that exhibits a panel shape and exhibits a claw shape. It was decided to form the intimate part (plate panome) 6 integrally.
- a plurality of cutout portions 5 are provided on the outer peripheral edge portion of the flange portion 4 in an equal distribution, and one claw-like close contact portion 6 is provided in each cutout portion 5 (one sheet). ) are integrally molded one by one.
- the claw-like close contact portion 6 has a thickness t smaller than the thickness t of the metal ring 2 body.
- Tension allowance R to be set is set, so that the shock at the time of clutch engagement is mitigated by the repulsive panel force.
- the plate panel which is a single part in the above-described conventional technique can be omitted, and accordingly, the number of parts and the assembly work are reduced accordingly.
- the number of man-hours can be reduced, and a bonded piston seal 1 that is advantageous in terms of cost can be provided.
- the claw-like close portions 6 are formed so as to extend long toward the base portion force tip portion and radially outward of the metal ring 2 due to dimensional constraints, etc.
- the metal ring 2 may be formed to extend long in the circumferential direction from the root part to the tip part.
- a support portion 7 having a protruding piece shape having the same thickness as the flange portion 4 is provided at the center of each notch portion 5 so as to extend radially outward of the metal ring 2. It is possible to provide the claw-shaped close portions 6 from the support portion 7 in both the circumferential directions of the metal ring 2. In this case, the number of claw-shaped close portions 6 formed is doubled (see FIG. Therefore, the panel power of the entire seal can be increased.
- Thickness t is uniformly formed over the entire length L.
- the stress generated during panel operation of the nail-like close part 6 is concentrated at the root of the nail-like close part 6 For this reason, a large panel power cannot be obtained, and the durability may not be so good. Therefore, the root part force of the nail-like intimate close part 6 that improves this point is formed so that one or both of the plate width and the plate thickness gradually decrease toward the tip part. It is possible to suppress the concentration of stress on
- the plate width w and plate thickness t of the claw-like close contact portion 6 are the root portion.
- the panel constant at that time is 35NZO. 6mm.
- the reason why the panel constant is not high is that the nail-like close contact portion 6 has a cantilever shape, so that stress concentrates on the root part.
- Thickness t 2mm at the root of the nail-like close part 6
- the maximum principal stress is 454 MPa
- the panel constant is 59 NZO. 6 mm
- the panel coefficient can be increased by about 68%. Therefore, with such a structure, a relatively large panel force can be obtained, and the durability of the claw-like close contact portion 6 can be improved.
- the structure of the fourth embodiment is not limited to the claw-shaped close portion 6 (second embodiment) facing in one circumferential direction, but the claw-shaped close portion 6 (first embodiment) facing in the radial direction.
- it can also be applied to the claw-like close contact portion 6 (third embodiment) facing both in the circumferential direction.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05750926A EP1798435A4 (en) | 2004-10-05 | 2005-06-06 | SEALING DEVICE |
| US11/661,559 US7789210B2 (en) | 2004-10-05 | 2005-06-06 | Sealing device |
| CN2005800288997A CN101010523B (zh) | 2004-10-05 | 2005-06-06 | 密封装置 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-292286 | 2004-10-05 | ||
| JP2004292286 | 2004-10-05 | ||
| JP2004-298407 | 2004-10-13 | ||
| JP2004298407A JP2006132548A (ja) | 2004-10-05 | 2004-10-13 | 密封装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006038347A1 true WO2006038347A1 (ja) | 2006-04-13 |
Family
ID=36142433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/010318 Ceased WO2006038347A1 (ja) | 2004-10-05 | 2005-06-06 | 密封装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7789210B2 (ja) |
| EP (1) | EP1798435A4 (ja) |
| JP (1) | JP2006132548A (ja) |
| KR (1) | KR20070059069A (ja) |
| CN (1) | CN101010523B (ja) |
| WO (1) | WO2006038347A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8465266B2 (en) * | 2007-10-12 | 2013-06-18 | United Technologies Corp. | Vacuum pressure systems |
| DE102009019588A1 (de) * | 2008-05-16 | 2009-11-19 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nasskupplung |
| EP2299140B1 (de) * | 2009-09-16 | 2013-03-20 | ZF Friedrichshafen AG | Lamellenkupplung mit elastischem Element |
| DE102012201507A1 (de) | 2012-02-02 | 2013-08-08 | Zf Friedrichshafen Ag | Kupplungsanordnung |
| CN103335032B (zh) * | 2013-06-24 | 2015-09-09 | 常州南车铁马科技实业有限公司 | 组合式制动离合器用减震活塞 |
| CN106931049B (zh) * | 2015-12-29 | 2020-06-16 | 舍弗勒技术股份两合公司 | 离合器系统及其离合器操纵机构 |
| KR101908300B1 (ko) * | 2016-11-15 | 2018-12-19 | 평화오일씰공업 주식회사 | 본디드 피스톤 씰 및 이를 구비한 클러치 유닛 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117756A (ja) | 1974-08-02 | 1976-02-12 | Kubota Ltd | Yuatsushitsushikitabankuratsuchi |
| JPS53106B1 (ja) * | 1971-06-14 | 1978-01-05 | ||
| JPS6347534A (ja) * | 1986-08-11 | 1988-02-29 | Nhk Spring Co Ltd | セラミツク材料等からなる板ばね |
| JPH0478875U (ja) | 1990-11-21 | 1992-07-09 | ||
| JPH0635678U (ja) * | 1992-10-19 | 1994-05-13 | ジャトコ株式会社 | 多板クラッチ |
| JPH11280791A (ja) | 1998-03-27 | 1999-10-15 | Exedy Corp | 動力伝達装置及びそれに用いられるクラッチ装置及び板状ばね |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259142A (en) * | 1962-12-05 | 1966-07-05 | Liquid Controls Corp | Actuator mechanism |
| JPS61148932A (ja) * | 1984-12-21 | 1986-07-07 | Nec Corp | 統計的多重化装置 |
| US4635778A (en) * | 1985-12-13 | 1987-01-13 | General Motors Corporation | Fluid-operated piston |
| JPH0635678A (ja) | 1992-07-15 | 1994-02-10 | Kofu Nippon Denki Kk | 十進除算回路 |
| JP3360420B2 (ja) * | 1994-06-09 | 2002-12-24 | 富士通株式会社 | 用紙搬送装置 |
| JP3515634B2 (ja) | 1995-05-23 | 2004-04-05 | ジヤトコ株式会社 | 油圧クラッチ装置 |
| JPH09210088A (ja) * | 1996-01-29 | 1997-08-12 | Nok Corp | 密封装置 |
| JP2004019830A (ja) * | 2002-06-18 | 2004-01-22 | Toyota Motor Corp | 動力伝達断続装置 |
| JP4065178B2 (ja) * | 2002-10-24 | 2008-03-19 | 株式会社エフ・シー・シー | 多板摩擦式クラッチ |
-
2004
- 2004-10-13 JP JP2004298407A patent/JP2006132548A/ja active Pending
-
2005
- 2005-06-06 US US11/661,559 patent/US7789210B2/en not_active Expired - Fee Related
- 2005-06-06 EP EP05750926A patent/EP1798435A4/en not_active Withdrawn
- 2005-06-06 KR KR1020077004652A patent/KR20070059069A/ko not_active Ceased
- 2005-06-06 CN CN2005800288997A patent/CN101010523B/zh not_active Expired - Fee Related
- 2005-06-06 WO PCT/JP2005/010318 patent/WO2006038347A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53106B1 (ja) * | 1971-06-14 | 1978-01-05 | ||
| JPS5117756A (ja) | 1974-08-02 | 1976-02-12 | Kubota Ltd | Yuatsushitsushikitabankuratsuchi |
| JPS6347534A (ja) * | 1986-08-11 | 1988-02-29 | Nhk Spring Co Ltd | セラミツク材料等からなる板ばね |
| JPH0478875U (ja) | 1990-11-21 | 1992-07-09 | ||
| JPH0635678U (ja) * | 1992-10-19 | 1994-05-13 | ジャトコ株式会社 | 多板クラッチ |
| JPH11280791A (ja) | 1998-03-27 | 1999-10-15 | Exedy Corp | 動力伝達装置及びそれに用いられるクラッチ装置及び板状ばね |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1798435A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101010523B (zh) | 2011-05-04 |
| EP1798435A1 (en) | 2007-06-20 |
| EP1798435A4 (en) | 2009-09-09 |
| KR20070059069A (ko) | 2007-06-11 |
| JP2006132548A (ja) | 2006-05-25 |
| CN101010523A (zh) | 2007-08-01 |
| US20070256557A1 (en) | 2007-11-08 |
| US7789210B2 (en) | 2010-09-07 |
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