초록 ▼

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 evap

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.

대표청구항 ▼

A heat pump system selectively operable in cooling or heating modes of operation and connected with cooling or heating loads and a heat sink or source to selectively provide heat to or remove heat from the load comprising: a) a refrigerant vapor compressor motively driven by a combustion prime mover

A heat pump system selectively operable in cooling or heating modes of operation and connected with cooling or heating loads and a heat sink or source to selectively provide heat to or remove heat from the load comprising: a) a refrigerant vapor compressor motively driven by a combustion prime mover and connected to selectively provide compressed refrigerant vapor to a first heat exchanger in heat exchange relationship with a heat source or sink, or to a second heat exchanger in heat exchange relationship to a load; b) valve means operable to selectively connect the compressor to the first heat exchanger to operate as a condenser in the cooling mode or to connect the compressor to the second heat exchanger in the heating mode, said first and second heat exchangers connected together to provide a first vapor compression subsystem; and c) a second subsystem comprising: fluid distribution means including a recuperator means in connection with said prime mover connected to flow a working fluid from said prime mover through said recuperator means to recuperate heat generated by said prime move in amounts greater than the usable energy to compress said refrigerant vapor; d) connecting means between said recuperator and a first radiator means to flow the working fluid through the first radiator means; and additionally flow the working fluid through a second radiator means; and a flow proportioning valve between the first and second radiator means to proportion the flow of working fluid between the first and second radiator means; e) said first heat exchanger and said first radiator juxtaposed one to the next in position to transfer heat one to the other by ambient air flow of the heat source or sink; and f) said second heat exchanger and said second radiator in heat transfer relation to the load.