Piston pump

• Main Author: TAKAHASHI MOTOYUKI
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

Provided is a piston pump capable of smoothly pressurizing a fluid, without impeding the flow of the pressurized fluid during discharge, and suppressing pressure loss, the piston pump comprising: a cylinder head having a discharge flow path through which the fluid is discharged, and provided with an on-off valve having a through-hole communicating with the discharge flow path; a cylinder liner; and a piston including: a piston body configured so as to be capable of reciprocating sliding within the cylinder liner; and a piston tip portion including a top surface and an inclined curved surface, the top surface being formed in a truncated shape, the cylinder head and the cylinder liner being joined via a valve head, the valve head including a cavity and an outlet opening, the switching valve being opened when a predetermined pressure is reached, and the fluid being discharged from the outlet opening to the discharge flow path via the through-hole. The inclined curved surface of the piston tip portion is formed s