Air-conditioning system for vehicle

Abstract

An air-conditioning system for a vehicle may include a cooling unit including a radiator, a cooling fan to introduce air in the radiator, a water pump connected to the radiator through the cooling line, and a reserver tank provided on the cooling line to store a cooling fluid, a first condenser connected to the cooling line between the radiator and the reserver tank such that a cooling fluid is introduced and a refrigerant is introduced through a refrigerant line, and the refrigerant is condensed by heat exchange between the cooling fluid and the refrigerant, and a second condenser serially connected to the first condenser on the refrigerant line such that a condensed liquid phase refrigerant is introduced, and disposed on a front of the radiator such that the refrigerant is condensed by an air cooling type through heat exchange between the refrigerant and an outdoor air introduced on driving.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0110929 filed on Oct. 5, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an air conditioning system for a vehicle, which improves the overall cooling performance of the air conditioning system by increasing the condensation rate of refrigerant. Background technique [0004] The air conditioning system includes a compressor to compress refrigerant, a condenser to condense and liquefy the refrigerant compressed by the compressor, an expansion valve to quickly expand the refrigerant condensed and liquefied by the condenser, and an The expansion valve expands the refrigerant to the evaporator. [0005] Because the water-cooled condenser has a higher heat capacity than the air-cooled condenser, the water-cooled condenser has a lower condensing pressu...

AI Technical Summary

Problems solved by technology

[0005] Because the water-cooled condenser has a higher heat capacity than the air-cooled condenser, the water-cooled condenser has a lower condensing pressure, but the temperature difference between the coolant and the refrigerant is smaller, and the temperature of the coolant Hotter than outside air, making it difficult to recool the refrigerant and potentially reducing overall cooling performance

[0006] A large capacity of the cooling fan and radiator is necessary to prevent the above problems, but it is disadvantageous in a narrow engine room and in terms of weight and cost of the vehicle

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