Patent ID: 6866090
Filing Date: 2005-03-15
Classification: B60H,F16L,F28D,F28F

Abstract:
1. An air-conditioning apparatus for vehicle, the apparatus comprising: a compressor for heating and pressurizing a gas coolant to high temperature and a high pressure; a condenser for exchanging heat of the gas coolant with atmosphere to be a high pressure liquid coolant or gas-liquid mixture coolant; a liquid tank for separating the high pressure liquid coolant or gas-liquid mixture coolant into gas and liquid; an expansion valve for making a low temperature and low pressure liquid coolant or gas-liquid mixture coolant through adiabatic expansion; an evaporator installed in a passenger's room of the vehicle, the evaporator for cooling air in the passenger's room by exchanging heat with the air of the passenger's room using the low temperature and low pressure liquid coolant or gas-liquid mixture coolant to be returned to the compressor as the low pressure gas coolant; a high pressure coolant pipe for carrying the coolant from the compressor to the evaporator through the condenser; and a low pressure coolant pipe for carrying the coolant from the evaporator to the compressor, wherein at least a part of one of the low pressure coolant pipe and high pressure coolant pipe is inserted into the other thereof or both pipes are arranged in parallel; and a part of the low pressure coolant pipe is secured to the condenser.