Cryogenic refrigerator and heat source

Details Cryogenic refrigerator and heat source Cryogenic refrigerator and heat source

F - Mech Eng,Light,Heat,Weapons

25

B

62/128

F25B 9/00 (2006.01) F25B 9/14 (2006.01)

Patent

CA 1224053

CRYOGENIC REFRIGERATOR AND HEAT SOURCE Abstract Of The Disclosure The cryogenic refrigerator includes a movable dis- placer within an enclosure having first and second chambers of variable volume. A refrigerant fluid is circulated in a fluid path between said chambers and correlated with movement of the displacer. A spool valve controls intro- duction of high pressure fluid and low pressure fluid to said chambers. The displacer movement is controlled by an electric motor which has a cam for reciprocating the spool valve member. The refrigerator is converted into a source of heat by reversing the direction of rotation of said electric motor.

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