Pulse tube refrigeration system with tapered work transfer tube
AssigneePraxair Technology, Inc.
InventorsVincent Kotsubo, Bayram Arman, Dante Patrick Bonaquist, Arun Acharya
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Abstract
A pulse tube refrigeration system, having a pulse generator, a regenerator and a pulse tube, comprising a work transfer tube interposed between the pulse generator and the regenerator wherein the work transfer tube has a cross section at the end proximate the pulse generator which differs from the cross sectional area proximate the regenerator, enabling a reduction in heat transfer due to streaming within the work transfer tube.
Claims21
A pulse tube refrigeration apparatus comprising:
- (A) a pulse generator;
- (B) a work transfer tube having a receiving end for receiving a pulse from the pulse generator, and a dispensing end in flow communication with a regenerator, said receiving end having a cross sectional area which differs from the cross sectional area of the dispensing end and wherein the work transfer tube is tapered continuously from the receiving end to the dispensing end;
- (C) a pulse tube in flow communication with the regenerator;
- and
- (D) a cold heat exchanger disposed between the regenerator and the pulse tube.
A pulse tube refrigeration apparatus comprising:
- (A) a pulse generator;
- (B) a work transfer tube having a receiving end for receiving a pulse from the pulse generator, and a dispensing end in flow communication with a regenerator, said receiving end having a cross sectional area which differs from the cross sectional area of the dispensing end;
- (C) a pulse tube in flow communication with the regenerator;
- and
- (D) a cold heat exchanger disposed between the regenerator and the pulse tube;
- and further comprising a forecooler located in the dispensing end of the work transfer tube.
A pulse tube refrigeration apparatus comprising:
- (A) a pulse generator;
- (B) a work transfer tube having a receiving end for receiving a pulse from the pulse generator, and a dispensing end in flow communication with a regenerator, said receiving end having a cross sectional area which differs from the cross sectional area of the dispensing end wherein the cross sectional area of the receiving end exceeds the cross sectional area of the dispensing end;
- (C) a pulse tube in flow communication with the regenerator;
- and
- (D) a cold heat exchanger disposed between the regenerator and the pulse tube.
Dependencies are inferred from the claim text.