Self-priming system for liquid pumps

Details Self-priming system for liquid pumps Self-priming system for liquid pumps

1982-12-09

1985-01-22

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

251 635, 415 11, F01B 2500

Patent

active

044945604

ABSTRACT:
A self-priming pump system incorporating a priming valve to release a quantity of priming liquid upon loss of pump suction. The valve includes a piston connected to a valve member, the piston having an area greater than that of the valve member. Discharge line static pressure act upon the valve member and the piston and the difference in area results in a net force tending to open the valve. The valve is maintained closed by the pump discharge dynamic pressure acting through a conduit and upon the opposite face of the piston. The valve does not include any springs or other mechanical biasing means.

REFERENCES:
patent: 1206385 (1916-11-01), Sperry
patent: 1757576 (1930-05-01), Kirgan
patent: 3370604 (1968-02-01), Napolitano
patent: 3381618 (1968-05-01), Napolitano
patent: 3451417 (1969-06-01), Napolitano
patent: 4335744 (1982-06-01), Bey

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