Cryogenic pump for liquid gases

Details Cryogenic pump for liquid gases Cryogenic pump for liquid gases

1978-09-19

1980-12-16

Freeh, William L.

Pumps

Successive stages

With interstage discharge or additional discharge from...

417258, 417259, 417901, F04B 300, F04B 2502

Patent

active

042394600

ABSTRACT:
The invention relates to a cryogenic pump for liquid gases which comprises, within a housing, a cylinder connected to the supply of liquified gas through a non return valve and to an overflow duct. A movable piston is displaceble within this cylinder defining a suction chamber and an evacuation chamber and this piston carries a skirt cooperating with a piston rigidly fixed to the frame defining together a compression chamber. This compression chamber is connected through a non return valve to the high pressure output of the pump and to the suction chamber by means of at least one passage provided with a non return valve.

REFERENCES:
patent: 39974 (1863-09-01), Virdin
patent: 905640 (1908-12-01), Borchers
patent: 2880927 (1959-04-01), Ploegert
patent: 2931313 (1960-04-01), Hughes
patent: 3023710 (1962-03-01), Tyree
patent: 3145629 (1964-08-01), Gotzmann
patent: 3254607 (1966-06-01), Norton
patent: 3263622 (1966-08-01), Tyree
patent: 4053089 (1977-10-01), Gamadia

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