Cold cylinder assembly for cryogenic refrigerator

Details Cold cylinder assembly for cryogenic refrigerator Cold cylinder assembly for cryogenic refrigerator

1975-03-25

1976-07-20

King, Lloyd L.

Refrigeration

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

F25B 900

Patent

active

039699072

ABSTRACT:
The cold cylinder assembly for a two stage Vuilleumier cycle cryogenic refrigerator having an outer cylinder forming a first chamber of a large diameter and a second chamber of a smaller diameter with a cold displacer within the cylinder. The cold displacer includes a first stage regenerator and a second stage regenerator. Gas from the crankcase passes through channels in the rider ring and then through ports to an annular passage within the cold displacer and then to the first stage regenerator. Gas from the first stage regenerator divides into two parts with one part passing to the second stage regenerator and then through passages to ports to impinge on an end member for the second stage heat load. The other part flows through passages to ports to impinge upon an end wall for the first stage heat load.

REFERENCES:
patent: 3650118 (1972-03-01), O'Neil
patent: 3717004 (1973-02-01), O'Neil
patent: 3802211 (1974-04-01), Bamberg et al.
patent: 3906739 (1975-09-01), Raimondi

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