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    • 7. 发明授权
    • Rotary engine operating on refrigeration cycle
    • US3892074A
    • 1975-07-01
    • US43950974
    • 1974-02-04
    • YOOS JR FREDERICK W
    • YOOS JR FREDERICK W
    • F01C1/34F01K11/04
    • F01C1/34F01K11/04
    • A pollution-free engine which operates upon a refrigerant cycle. The engine comprises a fixed outer shell having a circular peripheral race, a fixed inner shell having a circular peripheral race and disposed coaxially within the outer shell. A central shell having a peripheral race is disposed between the fixed shells and is mounted for eccentric rotation about the coaxial axis of the fixed shells. A central shaft is connected to the central shell and is laterally offset from its axis but is coaxial with the axes of the fixed shells such that a portion of the race makes contact with the race of the outer shell and also with the race of the inner shell. The arrangement forms four chambers, the first chamber of which is arranged to provide mechanical power to the shaft when the chamber expands as a result of the introduction therein of a power gas from an evaporation chamber disposed within the inner shell. The second chamber contracts as the first chamber expands and serves to recycle gas used in the first chamber by providing that gas to a condensation chamber also disposed within the inner shell. The condensation chamber acts to condense the power gas into a liquid. Means are provided for carrying the liquid to the evaporation chamber. A heat exchanger is disposed within the evaporation chamber and is coupled to a third chamber. The third chamber contains a refrigerant fluid in the form of a gas, and contracts as the first chamber expands, whereupon the second fluid condenses to form a refrigerant liquid in the first heat exchanger. This action provides heat to the power liquid within the evaporation chamber to cause that liquid to evaporate. The condensation chamber includes a second heat exchanger coupled to the first heat exchanger and adapted to receive condensed liquid therefrom. The second heat exchanger is coupled to a fourth chamber which expands as the third chamber contracts such that the condensed refrigerant liquid evaporates in the second heat exchanger to extract heat from the power gas within the condensation chamber and thereby cause the power gas to condense into a liquid. An electrical heating coil is provided within the evaporation chamber to aid in the evaporation of the power gas therein.