Refrigeration – Reversible – i.e. – heat pump – With product treatment
Patent
1977-06-06
1979-11-27
King, Lloyd L.
Refrigeration
Reversible, i.e., heat pump
With product treatment
62428, 62305, F25B 1300, F28D 500, F25D 1706
Patent
active
041754034
ABSTRACT:
The air-to-air split system or packaged heat pump system is used to heat and cool buildings. In the heating mode it extracts heat from the outside air for space heating. Heating and cooling with this type of heat pump is achieved by reversing the flow of refrigerant through the outdoor and indoor refrigerant coils. In the heating mode the outdoor coil acts as an evaporator and extracts heat from the air, the indoor coil acts as a condensor and gives off heat to the air handling system for the building. The reverse action takes place in the cooling mode. The operation of the reversing valve is controlled by a heating and cooling thermostat inside the building.
This invention relates to the use of the described heat pump system in the heating mode in combination with the exhaust system for the building to extract heat from the building exhaust air, which is normally exhausted to the outside air without any heat removal. The heat recovered from the exhaust air is thus used to heat the building with a saving in energy.
The essential part of this invention is the air diffuser with adjustable louvre, which is mounted on the exhaust fan and ties the two conventional systems together to form a heat recovery system for exhaust air.
REFERENCES:
patent: 2333309 (1943-11-01), Gould
patent: 2522484 (1950-09-01), Ringquist et al.
patent: 2698524 (1955-01-01), Rygard
patent: 2892324 (1959-06-01), Quick
patent: 3151469 (1964-10-01), Quick
patent: 3640090 (1972-02-01), Arej
patent: 3867979 (1975-02-01), Carrasse et al.
patent: 4024728 (1977-05-01), Gustafsson
patent: 4055964 (1977-11-01), Swenson et al.
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