| 摘要 |
PURPOSE: A lubrication structure for a clutch is provided to improve the degree of design freedom for a clutch and manufacture the clutch in order to be compact by forming a lubricating oil passage in a piston of the clutch. CONSTITUTION: A lubrication structure for a clutch comprises a retainer (R), a clutch hub (11), a disc unit (12), a piston (14), and a lubricating oil passage (14a). The clutch hub is selectively connected to the retainer. A plurality of discs individually connected to the retainer and the clutch hub is alternately arranged so that the disc unit is comprised. The piston closely attaches discs by compressing the disc unit when a hydraulic fluid is supplied from the outside and transmits the power between the retainer and the clutch hub. The lubricating oil passage connects a balance chamber (S2) of the piston and the disc unit and supplies lubricating oil accommodated in the balance chamber to the disc unit. |
