Method and apparatus for controlling the temperature of air deli

Details Method and apparatus for controlling the temperature of air deli Method and apparatus for controlling the temperature of air deli

1996-12-19

1998-04-21

Bennett, Henry A.

Refrigeration

Reversible, i.e., heat pump

With flow control or compressor details

62115, 62117, 237 2B, F25B 1300

Patent

active

057406812

ABSTRACT:
An air conditioning circuit of a motor vehicle is used for heating the cabin of the vehicle. The air conditioning circuit accordingly operates in a cooling mode and a heating mode, selectively. In the heating mode, the refrigerant fluid flowing in the air conditioning circuit flows in a branch of the circuit which bypasses the condenser. The evaporator therefore receives this fluid in the gaseous state and acts as a heat exchanger for dissipating the heat produced in the compressor. The heat dissipated by the evaporator can be used for heating the cabin when that produced by the engine of the vehicle is insufficient for this purpose. To this end, an ejector draws a complementary mass of fluid into the heating loop for the purpose of adjusting the heat energy produced.

REFERENCES:
patent: 5291941 (1994-03-01), Enomoto et al.
patent: 5343935 (1994-09-01), Sumitani
patent: 5361601 (1994-11-01), Han et al.
French Search Report dated 19 Sep. 1996.

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