Fuel control apparatus for dual chamber stratified charge engine systems

Fuel control apparatus for dual chamber stratified charge internal combustion engines, wherein each of the cylinders of the engine includes a pre-combustion chamber connected with a main combustion chamber, comprising in combination:

• single point fuel induction means for introducing a lean air-fuel mixture into the main combustion chambers;
• multi-point fuel injection means for providing timed pulses of appropriate duration for injecting a rich air-fuel mixture into each pre-combustion chamber;
• the rich air-fuel mixture in the pre-combustion chamber being spark ignited;
• the lean air-fuel mixture in the main combustion chamber being torch ignited by the spark ignited rich air-fuel mixture;
• and
• the single point fuel induction means including means responsive to sensed air flow signals and the multi-point fuel injection means including means responsive to computed air flow signals, whereby the single point and multi-point means are arranged to operate in one mode of a first mode and a second mode, the first mode occurring when the single point and the multi-point means operate independent of each other and the second mode occurring when said single point and multi-point means operate interrelated to each other.