Positive displacement pump with pivot piston valve

Details Positive displacement pump with pivot piston valve Positive displacement pump with pivot piston valve

1993-03-23

1994-03-08

Bertsch, Richard A.

Pumps

Expansible chamber type

Mechanically actuated distributor

417514, 417545, 417549, 417551, F04B 2104

Patent

active

052922367

ABSTRACT:
The pump comprises a cylinder delimiting a pumping chamber in which a piston is mounted to slide between an admission orifice and a delivery orifice, the piston including a pumping orifice which is associated with a closure member mounted to pivot about an axis adjacent to the pumping orifice and including a closure face that is substantially plane and that faces the piston.

REFERENCES:
patent: 1322552 (1919-11-01), Evans
patent: 1419151 (1922-06-01), Kurtz
patent: 2175000 (1939-10-01), Schlesinger
patent: 2231941 (1941-02-01), Ohman
patent: 3981635 (1976-09-01), Hedlund
patent: 4878819 (1989-11-01), Bozoyan

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