| 摘要 |
PURPOSE: An HVAC(Heating Ventilating Air-Conditioning) system for a vehicle is provided to reduce the flow loss of cool air using a heater core door and the flow loss of warm air using a streamlined section. CONSTITUTION: An HVAC system for a vehicle includes an evaporator core, a heater core, a case, an air mix door, and a heater core door. The evaporator core(1) generates cool air. The heater core(2) generates warm air. The case(3) forms a cool air passage in which the evaporator core is installed, and a warm air passage(P2) in which the heater core is installed and which is branched from the cool air passage and joined to the cool air passage via the heater core. The air mix door(4) is installed between the evaporator core and the heater core to select the cool air passage and the warm air passage. The heater core door(5) is provided in the junction of the warm air passage united to the cool air passage.
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