Cryogenic refrigerator with corner seal

Details Cryogenic refrigerator with corner seal Cryogenic refrigerator with corner seal

1990-01-18

1991-08-06

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, 92 86, 277 53, F25B 900

Patent

active

050366700

ABSTRACT:
In a cryogenic refrigerator, a displacer 12 and its drive piston 28 are guided by a displacer guide 32 seated within an expander body 16. An expander cap 40 enclosing a spring volume 38 extends within the expander body 16 and abuts the displacer guide 32. An indium seal 50 is positioned in the chamfer at the intersection of the cap, body and guide.

REFERENCES:
patent: 1983977 (1934-12-01), Geiger
patent: 3186743 (1965-06-01), Russell, Jr.
patent: 3832935 (1974-09-01), Syassen
patent: 4418918 (1983-12-01), Nicoll
patent: 4543792 (1985-10-01), Bertsch
patent: 4578956 (1986-04-01), Young
patent: 4724676 (1988-02-01), Lewis
patent: 4842287 (1989-06-01), Weeks

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