| 摘要 |
A refrigeration system associated with a conditioned space to be controlled to a predetermined set point temperature via heating and cooling cycles. The refrigeration system includes a heat exchanger, air mover apparatus disposed to circulate air between the conditioned space and the heat exchanger, cryogenic cooling apparatus which includes a combustible fuel in a cryogenic state, and heating apparatus. The cryogenic characteristic of the fuel is utilized to implement the cooling cycle, and the combustible characteristic of the fuel is utilized by the heating apparatus to implement the heating cycle. In preferred embodiments of the invention an internal combustion engine is associated with the refrigeration system, and the air mover means includes a vapor motor, with the cryogenic fuel being vaporized and then expanded in the vapor motor to drive same, and with the expanded vaporized fuel operating the internal combustion engine.
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