IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0207156
(1994-03-08)
|
| 우선권정보 |
SE-0000838 (1993-03-15) |
|
발명자
/ 주소 |
- Lundstrm Bo (Glumslv SEX) Severinsson Lars (Hishult SEX)
|
| 출원인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
21 인용 특허 :
0 |
초록
▼
A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) in a stationary housing (4) has a clutch (11, 12) engageable to counteract differential rotational speed between the shaft members. A hydraulic clutch piston (14) is arranged to engage the clutch, and a hydraulic pu
A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) in a stationary housing (4) has a clutch (11, 12) engageable to counteract differential rotational speed between the shaft members. A hydraulic clutch piston (14) is arranged to engage the clutch, and a hydraulic pump arrangement (1′, 18-21, 11″, 14-17), driven by the speed differential between the two shaft members, creates a hydraulic pressure on the clutch piston. The hydraulic pump arrangement includes a supply piston (18) and the clutch piston. Rollers (17, 21) are rotatable with one of the shaft members (2) and engage the other of the shaft members (1) via cams (1′, 11″), which are angularly offset in relation to each other, so as to impart to the pistons a reciprocating movement at the differential rotational speed between the shaft members. A hydraulic line system (25, 27, 29, 31) connects a cylinder (23) at the supply piston on one hand with the tank (24) via a check valve (26) and on the other hand－via a line (27) with a check valve (28)－with an outlet line (31) and connects a cylinder (30) at the clutch piston (14) with the outlet line.
대표청구항
▼
A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) in a stationary housing (4), the device containing a number of alternate clutch discs (11, 12) connected to the two shaft members and engageable to counteract differential rotational speed between the shaft members,
A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) in a stationary housing (4), the device containing a number of alternate clutch discs (11, 12) connected to the two shaft members and engageable to counteract differential rotational speed between the shaft members, at least one hydraulic clutch piston (14) to engage the clutch discs, and a hydraulic pump arrangement (1′, 18-21, 11″, 14-17; 1′, 18-21, 14-17, 33-38), driven by the speed differential between the two shaft members to create a hydraulic pressure on the clutch piston, characterized in that the hydraulic pump arrangement (1′, 18-21, 11′, 14-17; 1′, 18-21, 14-17, 33-38) is mounted on the stationary housing and includes a supply piston (18) and the clutch piston (14), both axially movable in the housing (4) coaxially with the shaft members (1, 2), piston actuating members (17, 21) rotatable with one of the shaft members (2) and engaging the other of the shaft members (1) via cams (1′, 11″; 1′, 33′), which are angularly offset in relation to each other, so as to impart to the pistons a reciprocating movement at a differential rotational speed between the shaft members, and a hydraulic line system (25, 27, 29, 31) connecting a cylinder (23) at the supply piston (18) on one hand with a tank (24) via a check valve (26) and on the other hand－via a line (27) with a check valve (28)－with an outlet line (31) and connecting a cylinder (30) at the clutch piston (14) with the outlet line.
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