Vehicle heating apparatus

摘要

A heater duct (18) is disposed between an air blower unit (12) and an air heater unit (16). A plate (34) is disposed in the heater duct (18) near an outlet joint (26) of the heater duct (18). The plate (34) has a closure member (48) and a plurality of through holes (50a, 50b) defined therein on opposite sides of the closure member (48). Air delivered under pressure from the air blower unit (12) is divided by the closure member (48) into air flows that pass through the through holes (50a, 50b) and are combined and mixed with each other, supplying air to the air heater unit (16) with a desired air speed distribution. The plate (34), which is of a relatively simple structure, is capable of easily and reliably achieving the same air speed distribution when an evaporator is not installed as the air speed distribution when the evaporator is installed, providing an effectively increased vehicle heating capability.