Patent ID: 6382305
Filing Date: 2002-05-07
Classification: B60H

Abstract:
An automobile heating, ventilation, and air conditioning unit, comprising:a heating, ventilation, and air conditioning unit case permitting flow of interior air; a blower fan unit having at least a blower fan for introducing air into said unit case; an evaporator core assembly having an evaporator core disposed in said unit case for taking heat from the air discharged from the blower fan to produce cool air; a heater core assembly having a heater core disposed in said unit case downstream of the evaporator core for adding heat to the cool air to produce warm air; a bypass air passage bypassing the heater core; an air mix door disposed between the evaporator core and the heater core for controlling a percentage of the cool air passing through said bypass air passage and the warm air produced by the heater core, depending on a degree of opening of said air mix door; said unit case defining an upstream air duct in said unit case upstream of the evaporator core for routing the air discharged from the blower fan toward the evaporator core; and an air-purifying filter slanted and arranged in the upstream air duct, so that an upstream end of said air-purifying filter is supported by an upper supporting portion fixedly connected to said unit case for supporting the evaporator core and so that a downstream end of said air-purifying filter is located away from a lower end of the evaporator core.