Air cooling unit for vehicle

Refrigeration – With alternately usable energy sources

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Details

622383, 62239, F25B 2700

Patent

active

045384240

ABSTRACT:
An air cooling unit for a vehicle having a source of energy, such as heat from crankcase oil or transmission oil or a source of electrical power, such as an alternator. The cooling unit is of the absorption type and includes a condenser in series with an evaporator, an absorber and a boiler. The cooling unit is provided with a refrigerant, such as ammonia, and an absorption fluid, such as water. Hydrogen gas can optionally be placed in the cooling unit to move between the evaporator and the absorber to reduce the partial pressure of the refrigerant. A return line in the form of a coil extends from the boiler to an inlet of the absorber to return the absorption fluid to the absorber after the absorption fluid has been separated by heat from the refrigerant gas in the boiler. All of the components of the cooling unit are sized, shaped and located so that the cooling unit provides a compact package capable of being fitted into a relatively small space. A fan can be provided to blow air past the evaporator and through the vehicle for cooling the interior thereof. In one form of the cooling unit, the boiler is provided with heated oil to serve as a heat source, the oil being taken either from the crankcase of the vehicle or from the transmission of the vehicle. In another form of the invention, the boiler includes an electrical resistance heating element in a housing for receiving a mixture of refrigerant and absorption fluid from the absorber, the electrical resistance heating element having means for coupling the same to an electrical energy source, such as the alternator of the vehicle.

REFERENCES:
patent: 2592712 (1952-04-01), Knoy
patent: 2740904 (1956-04-01), Goss
patent: 2839274 (1958-06-01), Polin
patent: 3225560 (1965-12-01), Doebeli
patent: 4253310 (1981-03-01), Sokolov
patent: 4253311 (1981-03-01), Blomberg

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