Flexible linkage for the displacer assembly in cryogenic coolers

Details Flexible linkage for the displacer assembly in cryogenic coolers Flexible linkage for the displacer assembly in cryogenic coolers

1983-07-08

1985-03-19

Capossela, Ronald C.

Refrigeration

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

92256, 403299, F25B 900

Patent

active

045051194

ABSTRACT:
In split cycle cryogenic coolers the compression and the expansion stage are distinct from one another and are connected by gas conduits. The change of volume of the expansion chamber is obtained by a linear, periodical movement of a displacer. According to the present invention, one end of a linkage connecting the displacer with its driving piston is directly connected to the latter while the other end of the linkage extends into the displacer. That end has a circumferential groove in which is seated an elastomeric ring.

REFERENCES:
patent: 1730580 (1929-10-01), Lundgaard
patent: 3274899 (1966-09-01), Stump
patent: 3552120 (1971-01-01), Beale
patent: 3654839 (1972-04-01), Thompson
patent: 3673809 (1972-07-01), Bamberg
patent: 3906739 (1975-09-01), Raimondi
patent: 3999768 (1976-12-01), Jepson
patent: 4089253 (1978-05-01), Visser
patent: 4090859 (1978-05-01), Hanson
patent: 4172676 (1979-10-01), De Chant
patent: 4206609 (1980-06-01), Durenec

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