System for heating interior speces of engine-driven vehicles

Details System for heating interior speces of engine-driven vehicles System for heating interior speces of engine-driven vehicles

B - Operations, Transporting

60

H

237/18, 257/26

B60H 1/20 (2006.01) F28D 15/02 (2006.01)

Patent

CA 1245609

ABSTRACT OF THE DISCLOSURE A heat pipe provided with a vaporizable working fluid is utilized to transfer heat from exhaust gas flowing through the exhaust pipe of an engine driving a vehicle to air flowing through an air duct to an interior space to be heated in the vehicle. The heat pipe has a loop return pipe for returning condensed fluid to a heat absorption part of the heat pipe and a control valve in the return pipe for controlling the flow of returning fluid, the control valve being con- trollable manually or automatically by a temperature control system including a sensor in the air duct, a control circuit, and a solenoid valve actuator.

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