Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1982-03-01
1983-11-01
O'Connor, Daniel J.
Heat exchange
Movable heating or cooling surface
Rotary drum
62160, 236 1E, F25B 2900
Patent
active
044125810
ABSTRACT:
The invention relates to a heating installation which includes a boiler and a heat pump. The heat pump has a multi-stage compressor. Graded threshold value operating switches for the multi-stage compressor and the boiler are provided. A control unit which includes comparator and integrator units functions to select compressor and boiler outputs in response to comparisons between indoor and outdoor temperatures made by the comparator unit.
REFERENCES:
patent: 3627031 (1971-12-01), Ware
patent: 4158383 (1979-06-01), Rayfield
patent: 4332352 (1982-06-01), Jaeger
patent: 4338791 (1982-07-01), Stamp
patent: 4341345 (1982-07-01), Hammer et al.
patent: 4346755 (1982-08-01), Alley et al.
patent: 4353409 (1982-10-01), Saunders
patent: 4369765 (1983-01-01), McDaniel
patent: 4373350 (1983-02-01), Noland
Hansen Henning
Iversen Kristian
Danfoss A/S
Easton Wayne B.
O'Connor Daniel J.
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