Torque converter device
The torque converter device addresses the challenge of hydraulic control instability by using independent oil passages to stabilize the lock-up clutch operation, ensuring smooth transitions and reducing operational impacts.
JP7612480B2Active Publication Date: 2025-01-14KOMATSU LTD
Patent Information
- Application Number
- JP2021056605
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-30
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2041-03-30
Smart Images
Figure 0007612480000001 
Figure 0007612480000002 
Figure 0007612480000003
Abstract
To provide a torque converter device capable of suppressing the occurrence of impact when a lock-up clutch transitions to an ON state.SOLUTION: A torque converter device 4 comprises a torque converter 21, a lock-up clutch 22, a first oil passage L1, and a second oil passage L2. The lock-up clutch 22 has a piston 31 that is hydraulically operated, and a disc 32 that is engaged or released with the operation of the piston 31. The first oil passage L1 supplies hydraulic oil to the inside of the torque converter 21. The second oil passage L2 supplies hydraulic oil to the disc 32. The second oil passage L2 is independent from the first oil passage L1.SELECTED DRAWING: Figure 2
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Citation Information
Patent Citations
torque converter
JP1993012836U
Torque converter
JP2005180536A