Fuel control system for internal combustion engines

Claim 1

A fuel control system for internal combustion engines comprising a stratified charge igniter having a housing with one end adapted to be screwed into the spark plug opening of an internal combustion engine, a bore through the housing, a secondary combustion chamber in the bore at the other end of the housing, a spark plug opening through the housing and opening into the secondary combustion chamber, a spark plug in the spark plug opening; a fuel line adapter having a passage therethrough extending through the housing into the secondary combustion chamber, and a pressure responsive valve in the fuel line adapter, said valve allowing flow into the secondary combustion chamber but preventing flow therefrom through the fuel line adapter; means including a water jacket for circulating liquid around at least part of the housing to cool the housing; a secondary carburetor; a fuel line interconnecting said secondary carburetor and the fuel line adapter, whereby an air-fuel mix is supplied to the secondary combustion chamber from the secondary carburetor through the fuel line; means to heat the air-fuel mix said means comprising a line surrounding the fuel line, conduit means interconnecting the interior of the water jacket with the interior of said line surrounding the fuel line, a pre-heater unit in the fuel line, said pre-heater unit including heated baffle means through which the air-fuel mix is passed, and means coupling the interior of the water jacket to the pre-heating means, whereby liquid cooling the igniter is used to heat the baffle means.