Temperature-control system for automotive vehicles

摘要

A heater mounted between the fire wall and the dashboard of an automobile has an intake port which opens into a catch basin, formed under a perforated cowling by a generally horizontal extension of this fire wall, alongside a discharge port of a heat exchanger forming part of an air-conditioning unit. Within the basin the two ports are overlain by a removable shroud having an inlet for ambient air closable by a flap. Another flap on the shroud controls the circulation of cooled air from the heat exchanger through the shroud to the heater with the aid of a fan in the latter. Upon removal of the shroud and disconnection of the air conditioner from the heater, the air supply of the latter can then be controlled by a smaller shroud having a swingable cap attached thereto.