Air-conditioning/heating system

Details Air-conditioning/heating system Air-conditioning/heating system

1980-09-22

1982-11-09

Wayner, William E.

Heat exchange

Movable heating or cooling surface

Rotary drum

62180, 62228, 236 1EA, F25B 2900

Patent

active

043579884

ABSTRACT:
A dual capacity air-conditioning/heating system including an evaporator, a blower, a compressor and compressor motor, the compressor motor having a two-speed mode of operation. The compressor motor speeds are changed by changing the shunt field current of the motor to achieve a significant reduction of energy consumption in the low-speed mode of operation. The blower motor has a two-speed mode of operation by changing the series armature resistance thereof.

REFERENCES:
patent: 1039568 (1912-09-01), McLain
patent: 2251376 (1941-08-01), Ross
patent: 2289082 (1942-07-01), Stevenson, Jr.
patent: 3475919 (1969-11-01), Ellis
patent: 3761018 (1973-09-01), Rekai
patent: 4041723 (1977-08-01), Weibel, Jr. et al.
Industrial Electronics Handbook, Cockerell, McGraw-Hill Co. 1966, pp. 2-246 & 2-247.

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