| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction clutch capable of shortening response time in engagement, and also capable of reducing variation in response.SOLUTION: A one-way valve 41 is interposed between a clutch oil passage 31 and a lubrication oil passage 32. By action of the one-way valve 41, in a state where a hydraulic pressure in the clutch oil passage 31 is higher than a hydraulic pressure in the lubrication oil passage 32, the clutch oil passage 31 and the lubrication oil passage 32 are cut off. When the hydraulic pressure in the clutch oil passage 31 drops lower than the hydraulic pressure in the lubrication oil passage 32 by a predetermined amount or greater, by the action of the one-way valve 41, the clutch oil passage 31 and the lubrication oil passage 32 communicate with each other, and an oil flows into the clutch oil passage 31 from the lubrication oil passage 32. Thereby, even when the hydraulic pressure in the clutch oil passage 31 drops, it can be suppressed that the inside of the clutch oil passage 31 is substituted with the air, and a state in which the clutch oil passage 31 is filled with the oil can be maintained.SELECTED DRAWING: Figure 1 |
