Stirling refrigerator with nonlinear braking spring

Details Stirling refrigerator with nonlinear braking spring Stirling refrigerator with nonlinear braking spring

1989-03-31

1990-05-08

Capossela, Ronald C.

Refrigeration

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

60520, 92 85A, 267168, F25B 900

Patent

active

049227220

ABSTRACT:
A Stirling refrigerator has a cold-finger in which a displacer can reciprocate in accordance with changes in pressure inside the cold-finger which are produced by a compressor. A spring is connected between the displacer and the cold-finger in order to brake gradually the movement of the displacer at the ends of its stroke. The spring has a greater spring constant when it is deformed by the displacer being near either end of its stroke than when the spring is in, or near, a neutral position.

REFERENCES:
patent: 4017062 (1977-04-01), Zwirner
patent: 4077619 (1978-03-01), Borlinghaus
patent: 4111407 (1978-09-01), Stager
patent: 4120489 (1978-10-01), Borlinghaus
patent: 4148469 (1979-04-01), Geyer
patent: 4514987 (1985-05-01), Pundak et al.
patent: 4539818 (1985-09-01), Holland
patent: 4543792 (1985-10-01), Bertsch
patent: 4642995 (1987-02-01), Bachler et al.
patent: 4735403 (1988-04-01), Matsumoto et al.

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