| 摘要 |
PURPOSE: To eliminate a change in a flow rate of pressure oil to be supplied to a hydraulic equipment from a vane pump. CONSTITUTION: A pressure plate 24, a cam ring 22, a rotor and a side plate 26 are housed in order from the bottom part side in a pump housing space 4a formed in a rear body 4. Pressure oil delivered into a delivery side pressure chamber 34 arranged on the bottom part side of the housing space 4a from delivery holes 24a and 24b formed in the pressure plate 24, is regulated by a flow control valve actuated according to differential pressure between the front and the rear of a metering orifice 4e arranged on a wall surface of the rear body 4, and is supplied to a hydraulic equipment. Mutually opposing barrier parts 24c and 4k are formed on the pressure plate 24 and a bottom surface 4j of the housing space 4a, and flowing force of the pressure oil delivered to a delivery side oil pressure chamber from the delivery hole 24b is prevented from directly acting on the metering orifice 4e. |
