PISTON PUMP HAVING A CLOSING BODY AT AN INLET VALVE

摘要

PURPOSE: A piston pump is provided to simplify the mounting structure of a closed body and enhance the closing and opening characteristics of an intake valve. CONSTITUTION: A piston pump(10) comprises a piston(16), a sealing member(48), and an intake valve(18). The sealing member seals the piston to a cylinder(14) in a radial direction. The intake valve is arranged on the piston and comprises a closed body(51). The closed body is supported by a spring member. The spring member is formed integrally with the sealing member. The spring member comprises a first section and a second section. The first section is extended from the sealing member and is aligned in an axial direction. The second section is connected to the first section and is aligned in a radial direction.