Cryocompressor with a self-centering piston

Details Cryocompressor with a self-centering piston Cryocompressor with a self-centering piston

1988-06-16

1990-03-27

Stout, Donald E.

Pumps

Expansible chamber type

Having additional chamber intake connection from nonpumping...

62 6, 60520, 92162R, F25B 900

Patent

active

049116185

ABSTRACT:
A cryocompressor includes a check valve arranged in a circuit connecting a compression chamber defined by a piston disposed in a cylinder with an annular gap small enough to provide an expected sealing effect to a buffer chamber also defined by the piston in the cylinder, a cross sectional area of the annular gap between the piston and the cylinder being larger on the side of the compression chamber than on the side of the buffer chamber.

REFERENCES:
patent: 2657553 (1953-11-01), Jonkers
patent: 3001609 (1961-09-01), Macks
patent: 3365896 (1968-01-01), Berry
patent: 3640082 (1972-02-01), Dehne
patent: 3793846 (1974-02-01), Dehne
patent: 4574591 (1986-03-01), Bertsch
patent: 4776260 (1988-10-01), Vincze
"Handbook of Lubrication", vol. II, CRC Press Inc., pp. 105-120, 6/1984, E. R. Booster.

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