Abstract: An auxiliary fuel heating device for attachment to internal combustion engines for the purpose of reducing the amount of fuel consumed and reducing the objectionable polluting constituents of the exhaust gases therefrom through more efficient combustion of the fuel. The fuel is preheated for presentation to the carburetor or fuel injector in warm liquid form for admixture with air prior to introduction to the combustion chambers. The device comprises a separable housing having separate channel passages for circulation of liquid fuel and radiator liquid in heat exchanging relationship. The device is intended for use under low ambient temperature conditions such as encountered during winter months in the northern states of the United States and similar cold areas.

Abstract: An auxiliary device for attachment to internal combustion engines for the purpose of reducing the objectionable polluting constituents of the exhaust gases therefrom and reducing the amount of fuel consumed. The device functions to reduce pollution by reducing the production of objectionable exhaust gas contaminants through more efficient combustion of the fuel. Efficient fuel consumption is achieved by means for presenting the fuel to the carburetor in preheated atomized liquid form for admixture with air prior to introduction to the combustion chambers. The auxiliary device comprises a housing having separate passages for circulation of liquid fuel and water in heat exchanging relationship. In addition to reducing pollution, use of the device effects fuel savings through more efficient fuel consumption.