Valve assembly for a piston compressor

Details Valve assembly for a piston compressor Valve assembly for a piston compressor

1990-07-09

1991-06-25

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

251 65, 417571, F04B 2102

Patent

active

050258281

ABSTRACT:
A valve assembly is interposed between the cylinder body and the cylinder cover of a piston compressor in which a piston assembly is provided slidably in the cylinder body. The valve assembly has an inlet passage with an increased-diameter inlet chamber, and an outlet passage with an increased-diameter outlet chamber. When the piston assembly moves away from the valve assembly in a suction stroke, an inlet valve rests on the inlet projections in the inlet chamber so as to enable gas to flow into the cylinder body, while an outlet valve closes the outlet passage, so as to prevent gas from flowing out of the cylinder body. When the piston assembly moves toward the valve assembly in a compression stroke, the inlet valve closes the inlet passage so as to prevent gas from flowing into the cylinder body, while the outlet valve rests on the outlet projections in the outlet chamber so as to enable gas to flow from the cylinder body.

REFERENCES:
patent: 1700372 (1929-01-01), Leinert
patent: 1704513 (1929-03-01), Pfeifer
patent: 2690295 (1954-09-01), Rand
patent: 3277830 (1966-10-01), Kalert, Jr. et al.
patent: 3409038 (1968-11-01), Blackford
patent: 3491790 (1970-01-01), Sanford
patent: 3891000 (1975-06-01), Melnick
patent: 4304534 (1981-12-01), Meise et al.
patent: 4408967 (1983-10-01), Unger et al.
patent: 4801250 (1989-01-01), Lammers

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