| 摘要 |
A multiple disc clutch apparatus in which a plurality of driven plates and a plurality of driving plates are disposed alternately and slipped to be engaged or disengaged by pressure applied from a piston includes, in a housing storing the driven plates and the driving plates, a cooling means that cools the multiple disc clutch such that when slipping rotation speed is low, a lubricating oil discharge hole on the housing is closed and lubricating oil is retained in the housing and when slipping rotation speed is high, the lubricating oil discharge hole is opened and lubricating oil is released from the housing.
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