Stirling cycle engine and refrigeration systems

Details Stirling cycle engine and refrigeration systems Stirling cycle engine and refrigeration systems

1975-05-05

1976-07-27

King, Lloyd L.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

F25B 900

Patent

active

039712303

ABSTRACT:
A Stirling cycle heat engine is disclosed in which displacer motion is controlled as a function of the working fluid pressure P.sub.1 and a substantially constant pressure P.sub.0. The heat engine includes an auxiliary chamber at the constant pressure P.sub.0. An end surface of a displacer piston is disposed in the auxiliary chamber. During the compression portion of the engine cycle when P.sub.1 rises above P.sub.0 the displacer forces the working fluid to pass from the cold chamber to the hot chamber of the engine. During the expansion portion of the engine cycle the heated working fluid in the hot chamber does work by pushing down on the engine's drive piston. As the working fluid pressure P.sub.1 drops below P.sub.0 the displacer forces most of the working fluid in the hot chamber to pass through the regenerator to the cold chamber. The engine is easily combinable with a refrigeration section to provide a refrigeration system in which the engine's single drive piston serves both the engine and the refrigeration section.

REFERENCES:
patent: 2750765 (1956-06-01), Kohler et al.
patent: 3078683 (1963-02-01), Dros
patent: 3101596 (1963-08-01), Rinia et al.
patent: 3216190 (1965-11-01), Baker
patent: 3292501 (1966-12-01), Verbeck
patent: 3367121 (1968-02-01), Webb
patent: 3550371 (1970-12-01), Jaspers
patent: 3793846 (1974-02-01), Dehne

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