Method and apparatus for valve motor actuation of a...

Details Method and apparatus for valve motor actuation of a... Method and apparatus for valve motor actuation of a...

F - Mech Eng,Light,Heat,Weapons

25

B

62/128

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

Patent

CA 1234501

ABSTRACT A method and apparatus for producing refrig- eration without loss of refrigeration or introduction of magnetic disturbance when using a displacer- expander type cryogenic refrigerator pneumatically actuated by a rotary valve coupled directly to a motor, the displacer-expander, rotary valve and motor being a single unit, by removing the motor from the unit and driving the valve by means of a flexible shaft. The flexible shaft can be disposed within a fluid conduit used to deliver high-pressure fluid to said refrigerator.

463898

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