Supplementary power system of an automobile

Claim 1

A supplementary power system installed in an automobile to add a driving power to the engine shaft of the automobile, comprising: a water reservoir; a plurality of pre-heating water chambers connected in series to said water reservoir to receive water from said water reservoir; a steam boiler connected in series to said pre-heating water chambers to heat water from said pre-heating water chambers to the boiling point; a water level controller; a plurality of one-way electromagnetic valves controlled by said water level controller to open the water passage between said water reservoir and said pre-heating water chambers respectively; a water circulation loop connected to the engine cooling system of the automobile and passing through said pre-heating water chambers, for circulation of engine cooling water through said pre-heating water chambers, permitting water in said pre-heating water chambers to be warmed up by heat carried in water in the engine cooling water; an exhaust gas guide pipe connected between the engine exhaust system and muffler of the automobile, and passing through said steam boiler and one pre-heating water chamber, for permitting water in said steam boiler to be heated to the boiling point by heat from the exhaust gas of the engine of the automobile; a steam engine driven by steam from said steam boiler; an air compressor driven by said steam engine; a pneumatic motor driven by said air compressor and having a power output end coupled to the engine shaft of the automobile by a transmission belt; and a steam recovery container adapted for collecting exhaust steam from said steam engine and guiding it to said water reservoir.