Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1982-09-09
1985-02-26
Capossela, Ronald C.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
60520, 277216, 277224, F25B 900
Patent
active
045011206
ABSTRACT:
In a refrigeration system such as a split Stirling system, fluid seals associated with the reciprocating displacer are virtually dragless clearance seals. Movement of the displacer relative to the pressure variations in the working volume of gas is retarded by a discrete braking element. Because it is not necessary that the brake providing any sealing action, the brake can be designed for greater durability and less dependence on ambient and operating temperatures. Similarly, the clearance seal can be formed of elements having low thermal expansion such that the seal is not temperature dependent. In the primary embodiments the braking element is a split friction brake.
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Capossela Ronald C.
Helix Technology Corporation
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