Motor vehicle heater with burner for heating passenger compartment of motor vehicle has liquid cooled engine exhaust gas cycling device

摘要

The heater has a heat exchanger (10) for heating the passenger compartment using the liquid coolant used to cool the engine (1) as a heat source, a burner (11) with a combustion chamber (11a) for burning fuel, whereby the burner is designed to heat the coolant fed to the heat exchanger by burning fuel, and an exhaust gas circulation unit for feeding the engine exhaust gas to the combustion chamber and to the engine induction tube (2) when burner operation is stopped.