ClassID:

140881

F02M31/083 - CPC Classification

Classification description:

Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases Temperature-responsive control of the amount of exhaust gas or combustion air directed to the heat exchange surface

Recent Application in this class: