Piston pump for vehicle, has retainer including valve bore, valve seat, valve body holding and spring holding portions, where ball valve body and spring are received and held by holding portions of retainer, respectively

摘要

The pump has a pump housing including suction and discharge ports, where a piston is mounted in a bore of the housing. A suction valve is provided on the piston and includes a retainer (31) that is mounted on the piston. The retainer has a valve bore, valve seat, valve body holding and spring holding portions. A ball valve body (33) and a spring (35) are received and held by the holding portions of the retainer, respectively.