Heating device for heating passenger space of motor vehicle with water cooled engine e.g. diesel engine

摘要

The equipment built into the engine coolant circuit (W) includes a space air-conditioner (2), an additional heater (3) in the rear space, and a heat generator (4) incorporating an electromagnetic clutch (7) and viscous heater (9) driven by a V-belt transmission (6) from the crankshaft (11). Air is ducted (21,31) into the passenger space from fans (22,32). The temperature setting of the coolant is increased in accordance with the air temperature set-point computed from the internal and external air temperatures and the quantity of sunlight.