초록 ▼

There is disclosed a valve assembly and a reciprocating type fluid pump having a piston cylinder and a cylinder head together which define a fluid chamber. A first ring valve having a seal surface on one side is disposed within the fluid chamber adjacent to the cylinder head to close at least one fl

There is disclosed a valve assembly and a reciprocating type fluid pump having a piston cylinder and a cylinder head together which define a fluid chamber. A first ring valve having a seal surface on one side is disposed within the fluid chamber adjacent to the cylinder head to close at least one fluid intake passage. A bias means is provided for urging the first ring valve against the seat on the head by abutting the ring valve on the side opposite from the seal surface, and the bias means includes a peripheral region which is connected to the fluid pump and retains the first ring valve between the cylinder head and the bias means.

대표청구항 ▼

A valve assembly and reciprocating fluid pump having a piston cylinder and a cylinder head secured to said piston cylinder defining a fluid chamber, said valve assembly comprising: a) a first ring valve with a seal surface on one side thereof disposed adjacent to said cylinder head to selectively en

A valve assembly and reciprocating fluid pump having a piston cylinder and a cylinder head secured to said piston cylinder defining a fluid chamber, said valve assembly comprising: a) a first ring valve with a seal surface on one side thereof disposed adjacent to said cylinder head to selectively engage a seat means on said cylinder head and close at least one fluid passage through said cylinder head; and b) a bias means for urging said first ring valve against said seat means on said cylinder head by abutting said first ring valve on a side opposite from said seal surface; wherein said bias means includes a peripheral region connected to said fluid pump, wherein said peripheral region of said bias means is connected to said fluid pump between opposing faces of said piston cylinder and said cylinder head and serves as a gasket for said fluid chamber, and said bias means retains said first ring valve between said cylinder head and said bias means.