| 摘要 |
PURPOSE:To improve dam effect, stabilize controlling function of fan rotation, improve workability and effectively prevent interlocking rotation by fitting the dam to a cutout formed on an outer peripheral wall of a disc side, and locating a flow inlet of a circulation passage on an inner wall of a sealing box. CONSTITUTION:A flow inlet 9'' lead from a circulation passage 9 of oil between a torque transmission chamber 6 and an oil reservoir chamber 5 is faced to an inner wall of a sealing box 3 wherein the oil is collected, and opposed to an outer peripheral wall of a driving disc 2. A dam 9' is loosely fitted to or by elastic force of a spring 13 engaged with a cutout 2', and a pumping mechanism is constituted. Dam effect is satisfactorily shown for a long time to smoothen flowing of the oil, controlling function of fan rotation is further stabilized, workability is remarkably improved, and interlocking rotation is effectively prevented. |
