Heat pump

Details Heat pump Heat pump

1984-09-04

1986-04-29

King, Lloyd L.

Refrigeration

Automatic control

Selective heating or cooling

622387, 623241, F25B 1300

Patent

active

045848440

ABSTRACT:
A heat pump system suitable for northern climates which utilizes a pressure limiting device that reduces pressure and capacity of the system in the cooling mode so as to allow a higher capacity in the heating mode for a given compressor-motor power rating. The pressure limiting device also alleviates problems associated with system reversal, such as for periodic outdoor heat exchanger defrosting.

REFERENCES:
patent: 2912833 (1959-11-01), McGrath
patent: 2928255 (1960-03-01), Harnish
patent: 3397552 (1968-08-01), Harnish
patent: 4104890 (1978-08-01), Iwasaki
patent: 4343157 (1982-08-01), Hattori

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