Steam injection apparatus for internal combustion engine
 An apparatus for controlling the injection of steam into the intake manifold of an internal combustion engine having an exhaust attachable evaporation plate supplied with water by a reservoir across a float bowl. A restrictor is placed in the line connecting the float bowl and evaporator. The evaporator plate defines a bore and is insulated from the exhaust pipe by a heat resistant gasket having an aperture of predetermined area. Boiling and steam generation are restricted primarily in the region between the gasket and line restrictor. 
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additional inventional inventional
Jasper
Rogers