Stirling-cycle refrigerator
AssigneeAisin Seiki Kabushiki Kaisha
InventorKazuaki Nakamura
Life of this patent
Estimating the term…
Abstract
A Stirling-cycle refrigerator comprises a plurality of Stirling-cycle refrigerator units each having a displacer defining an expansion chamber, a piston defining a compression chamber, and a circuit including a heater and a cooler and interconnecting the expansion chamber and the compression chamber, and a heat exchanger shared by the circuits and disposed between the coolers and the heaters for effecting heat exchange between working gases in the circuits. The heat exchanger may comprise a countercurrent heat exchanger, and the Stirling-cycle refrigerator units are operated in cycles which are 180.degree. out of phase with each other.
Claims2
A Stirling-cycle refrigerator comprising:
- (a) a plurality of Stirling-cycle refrigerator units, each having:
- (1) a displacer defining an expansion chamber;
- (2) a piston defining a compression chamber;
- and
- (3) a circuit including a heater and a cooler and interconnecting said expansion chamber and said compression chamber;
- (b) a countercurrent heat exchanger shared by said circuits and disposed between said coolers and said heaters for effecting heat exchange between working gases in said circuits;
- and
- (c) a pair of regenerators connected in said circuits, respectively, in series with said countercurrent heat exchanger.
Dependencies are inferred from the claim text.