Cryogenic pump

Details Cryogenic pump Cryogenic pump

1995-02-07

1996-04-30

Gluck, Richard E.

Pumps

Successive stages

Reciprocating rigid stages

417901, 62 507, F04B 1508

Patent

active

055119557

ABSTRACT:
A cryogenic pump capable of operating with a sub-zero net positive suction head includes a reciprocating piston positioned in a cylindrical housing for dividing the interior of the housing into a supercharger chamber and an evacuation chamber on opposite sides of the piston. A supercharger chamber valve, positioned directly behind the reciprocating piston, controls the flow of liquified gas from a gas inlet into the supercharger chamber. A fixed piston, extending into the evacuation chamber, engages a cylindrical skirt carried by the reciprocating piston to form a high pressure chamber between the two pistons. Liquified case from the high pressure chamber is supplied to a gas outlet via a passageway in the fixed piston.

REFERENCES:
patent: 2888879 (1959-06-01), Gaarden
patent: 3016717 (1962-01-01), Gottzman
patent: 3220202 (1965-11-01), Gottzman
patent: 4239460 (1980-12-01), Golz
patent: 4576557 (1986-03-01), Peuzner
patent: 4639197 (1987-01-01), Tornard
patent: 5188519 (1993-02-01), Spulgis

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