초록 ▼

An air conditioning system of the air cycle heat pump type for selectively heating and cooling a residence or similar space environment. In one embodiment, a combustor and associated Brayton cycle turbine provide the primary drive to a compressor constituting the heat pump. In a second embodiment, t

An air conditioning system of the air cycle heat pump type for selectively heating and cooling a residence or similar space environment. In one embodiment, a combustor and associated Brayton cycle turbine provide the primary drive to a compressor constituting the heat pump. In a second embodiment, the Brayton turbine is replaced by an electric motor coupled to drive the compressor shaft. An auxiliary turbine is also coupled to the drive shaft to provide auxiliary drive derived from the operation of a portion of the system at sub-atmospheric pressure. In this portion, during the cooling mode, water is evaporated into the system to further assist in cooling by removing the latent heat of vaporization.

대표청구항 ▼

Air cycle heat pump apparatus for selectively providing heating or cooling for an enclosed air space or the like, comprising: a load heat exchanger connected to recirculation air ducting, the heat exchanger having first, recirculation air passages and second, conditioning air passages in heat exchan

Air cycle heat pump apparatus for selectively providing heating or cooling for an enclosed air space or the like, comprising: a load heat exchanger connected to recirculation air ducting, the heat exchanger having first, recirculation air passages and second, conditioning air passages in heat exchanging relationship; a conditioning air circuit including the load heat exchanger, a regenerator at the outlet of the load heat exchanger for initially conditioning inlet ambient air, a turbo-compressor comprising a mechanically coupled turbine and compressor, the compressor serving to drive conditioning air through the circuit and the turbine providing part of the driving power for the compressor, and a plurality of control valves to transfer interconnections within the circuit to select heating or cooling mode operation; and a primary power source coupled to provide additional power as needed to drive the compressor for operation of the apparatus in a selected mode.