A cryostat for lowest temperature - refrigeration system and refrigeration plants with such a cryostat

摘要

The invention relates to a cryostat for cryogenic cooling to be mounted either on the casing of a cooler to the stirling cycle, or on that of a cycle of the cooling tube type with a gas pulsed. On the inside of a thermal insulation jacket (1), integral with a base (4) for mounting on said casing (50, 60), this cryostat has a thermal regenerator (5) in the annular disposition around an axial space (6) extending between a cold exchanger (8) which is in thermal contact with the component to be cooled (21) and puts the regenerator (5) with the said axial volume at the bottom of the cryostat (30), and a ring (71) of the distribution of gas in the regenerator (5), at the head of the cryostat, which is formed by a central part (10, 20) is mounted through said base axially at its center.