Patent ID: 7458225

Claim:
A dual-type air conditioning system for vehicles comprising a compressor for sucking and compressing a refrigerant and circulating the refrigerant to a condenser, first and second refrigerant guide pipes for supplying heat-exchanged refrigerant in the condenser to front and rear evaporators, a refrigerant branching point, the first and second refrigerant guide pipes being branched from the branching point towards respectively the front and rear evaporators, a throttle for reducing the pressure of the heat-exchanged refrigerant and expanding the heat-exchanged refrigerant, a first refrigerant discharging pipe for supplying the refrigerant to an intake of the compressor from the front evaporator, a second refrigerant discharging pipe for supplying the refrigerant to the intake of the compressor from the rear evaporator, and a refrigerant joining point where the first refrigerant discharging pipe and the second refrigerant discharging pipe are joined; the refrigerant joining point being positioned so the point is closer to the intake of the compressor than to the front evaporator; the second refrigerant discharging pie being at a spatial position higher than the first refrigerant discharge pipe: the first and second refrigerant discharging pipes being arranged spatially approximately parallel to each other.