| 摘要 |
The present invention relates to an air-conditioning system for vehicles, in which expansion means and an internal heat exchanger are formed integrally with each other or expansion means, an internal heat exchanger and an accumulator are formed integrally with one another in an air-conditioning system using carbon dioxide (CO 2 ) as refrigerant so as to minimize and simplify a refrigerant line, thereby reducing the cost and a loss of energy according to a reduction in the number of assembly processes thereof. The air-conditioning system includes a compressor, a gas cooler, expansion means and an evaporator as a refrigerant line for circulating refrigerant in this order. |
