Gas refrigerator

Details Gas refrigerator Gas refrigerator

1989-03-28

1990-01-23

Capossela, Ronald C.

Refrigeration

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

60520, F25B 900

Patent

active

048949965

ABSTRACT:
A refrigerator comprising a cold finger having an expansion space and a first compression space defined by a displacer, a regenerator connected to the expansion space and the first compression space, a cylinder having a second compression space and a buffer space defined by a piston, and a communicating tube connecting the first compression space to the second compression space. The working space thus defined is filled with the working gas so that a thermodynamic cycle can be generated in the working gas within the working space to generate coldness within the expansio space by reciprocatingly moving the piston and the displacer with a predetermined phase relationship therebetween. The refrigerator further comprises a first passage having a check valve between the working space and the buffer space, and a second connecting passage connecting the drain space and the buffer space. A hydrostatic displacer bearing is provided for hydrostatically supporting the displacer against the cold finger utilizing a differential pressure of the working gas between the working space and the drain space.

REFERENCES:
patent: 3698182 (1972-10-01), Knoos
patent: 3991585 (1976-11-01), Mulder
patent: 4090858 (1978-05-01), Hanson
patent: 4092833 (1978-06-01), Durenec
patent: 4412423 (1973-11-01), Durenec
patent: 4498296 (1985-02-01), Distra et al.

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