Seal retainer device and power transmission unit with seal retainer device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16H-045/02
F16J-015/16
F16J-015/06
출원번호
US-0986513
(2007-11-21)
등록번호
US-9133936
(2015-09-15)
우선권정보
DE-10 2006 061 551 (2006-12-27)
발명자
/ 주소
Degler, Mario
출원인 / 주소
Schaeffler Technologies AG & Co. KG
대리인 / 주소
Simpson & Simpson, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A seal retainer device for fixing the position of at least one sealing device, comprising at least one contact surface for fixing the position of a seal in the radial and/or axial direction, a first functional surface for linking to a component, and at least one second functional surface to form an
A seal retainer device for fixing the position of at least one sealing device, comprising at least one contact surface for fixing the position of a seal in the radial and/or axial direction, a first functional surface for linking to a component, and at least one second functional surface to form an axial or radial bearing sliding surface. In addition, the invention relates to a power transmission unit having a seal retainer that holds seals for sealing off two pressure chambers.
대표청구항▼
1. A power transmission unit (31) for connecting between a drive engine and a transmission input shaft (32), including: a turbine;a piston for a torque converter and the input shaft for a transmission forming at least respective portions of two pressure chambers (2, 3);a hub (38) at least partially
1. A power transmission unit (31) for connecting between a drive engine and a transmission input shaft (32), including: a turbine;a piston for a torque converter and the input shaft for a transmission forming at least respective portions of two pressure chambers (2, 3);a hub (38) at least partially rotatable with respect to the turbine and arranged to engage the input shaft such that the hub and the input shaft rotate in unison;a first sealing device in contact with the hub (38) and the piston; and,a second sealing device in contact with the hub (38) and the input shaft, wherein: the first and second sealing devices are fixed with respect to the hub (38) in an axial direction by means of a seal retainer device (1); andthe seal retainer device (1) is situated on the hub (38) such that the seal retainer device surrounds an end of the hub in axial and radial directions. 2. The power transmission unit (31) recited in claim 1, wherein the seal retainer device (1) includes at least one first functional surface (70, 71) for coupling with the hub (38). 3. The power transmission unit (31) recited in claim 2, wherein the coupling of the first functional surface (70, 71) with the hub (38) is accomplished by a compression connection. 4. The power transmission unit (31) recited in claim 2, wherein the coupling of the first functional surface (70, 71) with the hub (38) is accomplished by positive locking. 5. The power transmission unit (31) recited in claim 1, wherein the seal retainer device (1) is designed as a ring-shaped, cap-like element (17) with a C-shaped or U-shaped ring cross section to form at least two surface areas for contact with the hub, situated coaxially to each other and forming first functional areas (70, 71) that form first functional surfaces, with projections (20, 21) oriented in the radial direction to form axial contact surfaces (22, 23), and a connecting part (26) between the coaxial surface areas (70, 71). 6. The power transmission unit (31) recited in claim 5, wherein the cap-like element (17) has a plurality of recesses (73) in the area of the connecting part (26) in the circumferential direction, by which the projections (74) that are oriented in the axial direction on the hub (38) and form axial sliding bearing surface areas are guided. 7. The power transmission unit (31) recited in claim 6, wherein the hub (38) is executed as a sintered component. 8. The power transmission unit (31) recited in claim 1, wherein the seal retainer device (1) has at least one second functional surface (28) oriented in the axial direction, which forms an axial or radial sliding bearing surface between the hub (38) and a sub-area of a housing (39) that forms an inner circumference. 9. The power transmission unit (31) recited in claim 8, wherein the second functional surface (28) is formed by a plurality of partial surface areas. 10. The power transmission unit (31) recited in claim 8, wherein the second functional surface (28) oriented in the axial direction is formed on a connecting part (26). 11. The power transmission unit (31) recited in claim 8, wherein channels, projections or recesses are provided on the inner circumference of the housing (39) in the axial direction with respect to the hub (38) to realize a port for the flow of process fluid. 12. The power transmission unit (31) recited in claim 11, wherein said power transmission unit is designed as a three-channel unit, and the seal retainer device (1) is employed to seal off a pressure chamber (2) that is pressurizable with medium pressure to pressurize the control device of the engageable and disengageable clutch device (40) from an interspace (47) enclosed by the housing (39). 13. The power transmission unit (31) recited in claim 8, wherein channels, projections or recesses (72) are provided on the face of the hub (38) oriented in the axial direction with respect to the inner circumference of the housing (39) to realize a port for the flow of process fluid. 14. The power transmission unit (31) recited in claim 1, wherein said power transmission unit has an engageable and disengageable clutch device (40), a hydrodynamic component (33) and an apparatus for damping vibrations situated down line from both in the power transmission path between an input (E) and an output (A), and wherein a secondary part (36) for the output is connected to the hub (38) in a rotationally fixed connection. 15. A torque converter, comprising: a torque converter clutch with a piston;a first chamber partially formed by the piston, wherein pressure in the first chamber is arranged to displace the piston to close the torque converter clutch;a second chamber partially formed by the piston, wherein pressure in the second chamber is arranged to displace the piston to open the torque converter clutch;a hub arranged to rotationally engage a transmission input shaft and including: a first opening through which an axis of rotation for the torque converter passes; and,a connection passageway, wholly surrounded by the hub, and including: a second opening connecting the connection passageway to the second chamber and facing radially outward; and,a third opening connecting the connection passageway to the first opening and facing radially inward; and,a seal retainer device including a first seal in contact with the piston and the hub and a second seal in contact with the hub and arranged to contact the transmission input shaft, wherein: the seal retainer device includes a ring-shaped element fixed to a distal end of the hub; and,respective distal ends of the ring-shaped element are in contact with the first and second seals, respectively, to axially fix the first and second seals against the hub. 16. The torque converter of claim 15, wherein: the piston includes a first radially inwardly facing surface in contact with the first seal;the hub includes a first radially outward surface in contact with the first seal and a second radially inwardly facing surface in contact with the second seal; and,the second seal is arranged to engage a second radially outwardly facing surface of the input shaft. 17. The torque converter of claim 16, wherein the piston is arranged to axially displace such that the first radially inwardly facing surface displaces along the first seal. 18. The torque converter of claim 15, wherein: the hub includes first and second axially facing surfaces;the first and second seals are in contact with the first and second axially facing surfaces, respectively; and,the first and second seals are axially fixed with respect to the hub.
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이 특허에 인용된 특허 (11)
Kopacin Boris (Nanterre FRX), Clutch slave cylinder.
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