Engine driven heat pump system
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United States of America Patent
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-
Jun 4, 1991
Grant Date -
N/A
app pub date -
Dec 20, 1989
filing date -
Dec 20, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A heat pump system selectively operable in cooling and heating modes of operation and having a combustion prime mover which produces refrigerant vapor compression and which produces combustion heat in greater amounts than usable energy for motive power, provided with a first heat exchanger that evaporates compressed refrigerant in the system heating mode of operation and with a first radiator means which transfers excess prime mover heat to a working fluid, and with a working fluid distribution means selectively operable to proportionately flow the heated working fluid to the first radiator in convective heat exchange relations to the first heat exchanger means, in the system heating mode of operation, to provide defrost capabilities and especially to improve heat pumping capacity at low ambient temperatures.
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