초록 ▼

Valve unit, particularly for high-pressure pumps, comprising a cage mainted in position by a screwed plug and containing a valve disc and a valve seat, the screwed plug having a threaded shank provided with an annular groove for a seal gasket in contact with the inner wall of the cavity which receiv

Valve unit, particularly for high-pressure pumps, comprising a cage mainted in position by a screwed plug and containing a valve disc and a valve seat, the screwed plug having a threaded shank provided with an annular groove for a seal gasket in contact with the inner wall of the cavity which receives the valve unit, said annular groove for receiving said seal gasket being positioned adjacent to that end of said thread close to the valve unit, and being inserted into a portion of the plug receiving cavity having a diameter less than the outer diameter of the plug thread.

대표청구항 ▼

[ I claim:] [5.] A valve unit, comprising:a housing having a cavity therein, said cavity including inlet and outlet ports;a cage disposed in said cavity and including an upper part and a lower part, said upper and lower parts frictionally secured to each other, said upper part comprising a plurality

[ I claim:] [5.] A valve unit, comprising:a housing having a cavity therein, said cavity including inlet and outlet ports;a cage disposed in said cavity and including an upper part and a lower part, said upper and lower parts frictionally secured to each other, said upper part comprising a plurality of ribs, a first ring disposed between said valve member and said plurality of ribs and connected to an inner portion of said plurality of ribs, a second ring connected to a bottom portion of said plurality of ribs, and a central core disposed within said cage and above said valve member and being guided by said plurality of ribs, said central core having a hollow portion formed therein;a valve member disposed within said cage; anda biasing member biasing said valve member towards said inlet port.