| 摘要 |
PURPOSE:To prevent the waste use of power by forming an effluence passage whose one edge is opened at the rear position in the circumferential direction of a projection formed onto the outer periphery of an input member and the other edge is opened into a groove in the radial direction and reducing the off- revolution speed of an output member in a short time. CONSTITUTION:One edge of an input member 4 is opened at the rear position (the position on the downstream side of the working fluid flow) in the circumferential direction of a projection formed onto the outer peripheral surface of the input member 14, and the other edge is opened into a groove 25 in the radial direction. Effluence grooves 30 as effluence passage are formed at two positions. Therefore, since one edge of the effluence groove 30 which communicates to the groove 25 in the radial direction is opened at the rear position in the circumferential direction of the projection 22 where the pressure of working fluid reduces, the working fluid in the groove 25 in the radial direction can be allowed to flow easily into the part where the pressure of the working fluid lowers. Therefore, the working fluid in a shearing space can be discharged to the outer peripheral side in a working chamber in a short time. |
