| 摘要 |
In a pump of the slipper-vane type for e.g. a vehicle hydraulic power- steering system, a chamber for the rotor 30 is defined by a cam ring 3 and side plates 4, 5 furnished with suction and discharge parts, respectively, Figs. 5-8 (not shown). To prevent injury thereto due to thermal expansion, friction, and pressure pulsations the cam ring and side plates may be fastened together with longitudinally-resilient screws 20, each of which has either a reduced diameter portion 21 or a screw-threaded portion (24), Fig. 15 (not shown), whereat the strain (caused by the heat and pressure of the working fluid in the rotor chamber) is greater than that at the thicker or non-threaded adjacent portions of the screw. A reservoir 2 for the working fluid may be mounted on the side plates. <IMAGE> |
