Method for operating an air conditioning cooling system for vehi

Details Method for operating an air conditioning cooling system for vehi Method for operating an air conditioning cooling system for vehi

1995-09-08

1997-11-11

Tanner, Harry B.

Refrigeration

Processes

Employing diverse materials or particular material in...

62115, 622285, F25B 100

Patent

active

056851600

ABSTRACT:
A method for operating a refrigerating unit for the air conditioning of vehicles and a refrigerating unit for carrying out the method, are provided. In order to make available refrigerating capacity, on the high pressure side of a vapor compression circuit, a pressure is produced which, with respect to the critical pressure of a refrigerant circulating in the circuit, is supercritical and, at the same time, on the low pressure side of the circuit, a subcritical pressure is achieved. In this arrangement, the circuit contains a compressor, a gas cooler, a throttle device and an evaporator which are series-connected and form an integral, closed circuit. The refrigerant, which is cooled on the low pressure side, is supplied, via the evaporator, with thermal energy, and refrigerating energy is removed. In order to increase the efficiency and the comfort of the system to such an extent that an air conditioning system operating with this unit is suitable for use in a vehicle, the refrigerant mass flow in the circuit is varied by regulating the refrigerant flow rate in the compressor.

REFERENCES:
patent: 4463576 (1984-08-01), Burnett et al.
patent: 5172563 (1992-12-01), Fujii
patent: 5245836 (1993-09-01), Lorentzen et al.
patent: 5247808 (1993-09-01), Yoshida et al.

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