IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0133587
(2016-04-20)
|
등록번호 |
US-10197143
(2019-02-05)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
11 |
초록
▼
A hydrokinetic torque coupling device includes a turbine wheel (3), an impeller wheel (2) able to hydrokinetically drive the turbine wheel (3), a cover (5) non-rotatably attached to the impeller wheel (2) so as to define an internal volume (6) accommodating the turbine wheel (3), and a seal (18) mou
A hydrokinetic torque coupling device includes a turbine wheel (3), an impeller wheel (2) able to hydrokinetically drive the turbine wheel (3), a cover (5) non-rotatably attached to the impeller wheel (2) so as to define an internal volume (6) accommodating the turbine wheel (3), and a seal (18) mounted to a radially external periphery of the turbine wheel (3). The turbine wheel (3) being able to be axially moved between an engaged position and a disengaged position. The seal (18) configured to engage one of a matching sealing surface (22) of the impeller wheel (2) positioned radially outside the turbine wheel (3) and the cover (5) in the engaged position and to be disengaged from one of the matching sealing surface (22) the impeller wheel (2) and the cover (5) in the disengaged position.
대표청구항
▼
1. A hydrokinetic torque coupling device (1) for a motor vehicle, comprising: an impeller wheel (2) intended to be coupled to a crankshaft; anda turbine wheel (3) hydrokinetically driven by the impeller wheel (2), the turbine wheel (3) axially moveable between an engaged position in which the turbin
1. A hydrokinetic torque coupling device (1) for a motor vehicle, comprising: an impeller wheel (2) intended to be coupled to a crankshaft; anda turbine wheel (3) hydrokinetically driven by the impeller wheel (2), the turbine wheel (3) axially moveable between an engaged position in which the turbine wheel (3) and the impeller wheel (2) are non-rotatably coupled together, and a disengaged position, in which the turbine wheel (3) and the impeller wheel (2) are rotationally uncoupled;a cover (5) non-rotatably attached to the impeller wheel (2) so as to define an internal volume (6) accommodating the turbine wheel (3); anda seal (18) mounted to a radially external periphery of the turbine wheel (3), the seal (18) configured to engage a matching sealing surface (22) of one of the impeller wheel (2) and the cover (5) in the engaged position and to be disengaged from one of the matching sealing surface (22) the impeller wheel (2) and the cover (5) in the disengaged position,the matching sealing surface (22) positioned radially outside the turbine wheel (3). 2. The hydrokinetic torque coupling device (1) according to claim 1, wherein the seal (18) is moveable away from the sealing surface (22) in the disengaged position. 3. The hydrokinetic torque coupling device (1) according to claim 2, wherein the turbine wheel (3) comprises a friction device (26, 27) configured to cooperate with a matching friction surface of the impeller wheel (2) or the cover (5), and wherein the friction device (26, 27) of the turbine wheel (3) is positioned in a zone away from the seal (18). 4. The hydrokinetic torque coupling device (1) according to claim 2, wherein the impeller wheel (2) or the cover (5) comprises a cylindrical surface (22) defining the matching sealing surface (22) and an annular groove (20) arranged in the cylindrical surface (22), wherein the seal (18) of the turbine wheel (3) is annular and configured to engage the cylindrical surface (22) in the engaged position, and wherein the seal (18) is positioned axially opposite the groove (20) in the disengaged position. 5. The hydrokinetic torque coupling device (1) according to claim 2, wherein the seal (18) is a lip seal (19). 6. The hydrokinetic torque coupling device (1) according to claim 2, wherein one of the turbine wheel (3) and the seal (18) comprise a leakage opening (23) enabling fluid flow through one of the turbine wheel (3) and the seal (18). 7. The hydrokinetic torque coupling device (1) according to claim 1, wherein the turbine wheel (3) comprises a friction device (26, 27) configured to cooperate with a matching friction surface of the impeller wheel (2) or the cover (5), and wherein the friction device (26, 27) of the turbine wheel (3) is positioned in a zone away from the seal (18). 8. The hydrokinetic torque coupling device (1) according to claim 7, wherein the impeller wheel (2) or the cover (5) comprises a cylindrical surface (22) defining the matching sealing surface (22) and an annular groove (20) arranged in the cylindrical surface (22), wherein the seal (18) of the turbine wheel (3) is annular and configured to engage the cylindrical surface (22) in the engaged position, and wherein the seal (18) is positioned axially opposite the groove (20) in the disengaged position. 9. The hydrokinetic torque coupling device (1) according to claim 7, wherein the seal (18) is a lip seal (19). 10. The hydrokinetic torque coupling device (1) according to claim 7, wherein one of the turbine wheel (3) and the seal (18) comprise a leakage opening (23) enabling fluid flow through one of the turbine wheel (3) and the seal (18). 11. The hydrokinetic torque coupling device (1) according to claim 1, wherein one of the impeller wheel (2) and the cover (5) comprises a cylindrical surface (22) defining the matching sealing surface (22) and an annular groove (20) arranged in the cylindrical surface (22), wherein the seal (18) of the turbine wheel (3) is annular and configured to engage the cylindrical surface (22) in the engaged position, and wherein the seal (18) is positioned axially opposite the groove (20) in the disengaged position. 12. The hydrokinetic torque coupling device (1) according to claim 11, wherein the seal (18) is a lip seal (19). 13. The hydrokinetic torque coupling device (1) according to claim 11, wherein one of the turbine wheel (3) and the seal (18) comprise a leakage opening (23) enabling fluid flow through one of the turbine wheel (3) and the seal (18). 14. The hydrokinetic torque coupling device (1) according to claim 1, wherein the seal (18) is a lip seal (19). 15. The hydrokinetic torque coupling device (1) according to claim 14, wherein one of the turbine wheel (3) and the seal (18) comprise a leakage opening (23) enabling fluid flow through one of the turbine wheel (3) and the seal (18). 16. The hydrokinetic torque coupling device (1) according to claim 1, wherein one of the turbine wheel (3) and the seal (18) comprise a leakage opening (23) enabling fluid flow through one of the turbine wheel (3) and the seal (18). 17. The hydrokinetic torque coupling device (1) according to claim 1, further comprising a bracing member (24) axially extending between the turbine wheel (3) and the cover (5), wherein the bracing member (24) is configured to limit axial motion of the turbine wheel (3) towards the cover (5), disposed axially opposite the turbine wheel (3). 18. The hydrokinetic torque coupling device (1) according to claim 17, wherein one end of the bracing member (24) is attached to one of the turbine wheel (3) and the cover (5) and wherein another end of the bracing member (24) is configured to engage the other one of the turbine wheel (3) or the cover (5) in the engaged position. 19. The hydrokinetic torque coupling device (1) according to claim 17, wherein the bracing member (24) is provided with at least one friction lining (27) configured to engage a matching friction surface (9) of the cover (5) or the turbine wheel (3) in the engaged position, so as to non-rotatably couple together the turbine wheel (3) and the cover (5). 20. The hydrokinetic torque coupling device (1) according to claim 1, further comprising a damping device (28) mounted between the turbine wheel (3) and a hub (11) intended to be coupled with a transmission input shaft. 21. The hydrokinetic torque coupling device (1) according to claim 20, wherein the damping device (28) comprises an annular wheel disc (12) connected to the hub (11), a least one guiding washer (29, 30) connected to the turbine wheel (3), and at least a first elastic member (31) mounted circumferentially between the annular wheel disc (12) and the guiding washer (29, 30), and wherein the at least one first elastic member (31) is configured to oppose the rotation of the annular wheel disc (12) relative to the at least one guiding washer (29, 30). 22. The hydrokinetic torque coupling device (1) according to claim 21, wherein the damping device (28) further comprises at least one second elastic member (32) mounted between the at least one guiding washer (29, 30) and the turbine wheel (3), and wherein the at least one second elastic member (32) is configured to oppose the rotation of the turbine wheel (3) relative to the at least one guiding washer (29, 30).
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