Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1993-05-07
1994-06-28
Tapolcai, William E.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
60520, F25B 900
Patent
active
053236157
ABSTRACT:
A closed system for effecting cryogenic cooling. The system includes a cylinder which houses therewithin a piston disposed for reciprocation within the cylinder. The cylinder is in fluid communication with a closed reservoir. A conduit interconnects the reservoir to a first chamber defined at a first end of the cylinder. A branch passage diverges from the conduit to provide fluid communication between the conduit and a second chamber defined within the cylinder at a second end thereof. A first conduit segment is, thereby, defined between the intersection of the branch passage and the entrance of the conduit into the cylinder at the first end thereof, and a second conduit segment is defined between the intersection of the branch passage with the conduit and the entry of the conduit into the reservoir. Heat exchange regeneration means are interposed in the first conduit segment, and a first valve is interposed in the first conduit segment between the heat exchange regeneration means and the intersection of the branch passage with the conduit. A second valve is interposed in the second conduit segment.
REFERENCES:
patent: 2966035 (1960-12-01), Gifford
patent: 3188818 (1965-06-01), Hogan
patent: 3188819 (1965-06-01), Hogan
patent: 3303658 (1967-02-01), Chellis
patent: 3609982 (1971-10-01), O'Neil et al.
patent: 3613385 (1971-10-01), Hogan et al.
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