Fluid pump apparatus and valve device

Details Fluid pump apparatus and valve device Fluid pump apparatus and valve device

F - Mech Eng,Light,Heat,Weapons

04

B

103/32, 137/57

F04B 43/06 (2006.01)

Patent

CA 1338322

In a pump apparatus in which the action of a piston draws fluid into and pumps fluid from a valve chamber, a partition is provided between the piston cylinder and the valve chamber. The partition is able to transmit the force of the piston action, and for this purpose the cylinder side of the partition contains a suitable liquid medium that transmits the actuation of the piston. A screening means is provided in a passage between the partition and the valve chamber to screen out particles in the fluid that exceed a prescribed size. The overall effect is to eliminate wear to working parts of the valve caused by entrained particles. In addition there is a valve device which prevents bounce or vibration of valve-pieces during high pressur/high speed pumping operations.

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