Heating system for vehicles

Abstract

A heating system for vehicles, comprising: a heater (2) generating heat during operation by combustion of fuel; a liquid/air heat exchanger (8) for supplying heat to a vehicle interior space; a liquid circuit passing through the heater (2) and the heat exchanger (8); a blower (10) associated with the heat exchanger (8); an electric switching controller (14) for the blower power, which is connected to the motor (12) of the blower (10) and operates in infinitely variable manner and substantially without losses; a bypass (32) of the heat exchanger (8) which is part of the liquid circuit; an electrically adjustable valve (30) in the liquid circuit for determining the extent of the flow through the heat exchanger (8) and the bypass (32); a vehicle interior space temperature sensor (50); and an electric regulating means (8) connected to said temperature sensor (50) and driving the switching controller (14) and the valve (30).

Dependencies are inferred from the claim text.