Patent ID: 8386149

Claim:
A fuel system ( 18 ) for an internal combustion engine including an engine block ( 12 ), at least one combustion chamber ( 14 ) associated with the engine block, at least one piston ( 11 ) mounted for movement within the chamber ( 14 ), a shaft ( 7 ) driven by the at least one piston ( 11 ), and a flywheel ( 2 ) mounted to and rotatable with the shaft; comprising: a throttle body ( 10 ) mounted to the engine, the throttle body having a plurality of openings in it, the openings serving to route fuel to the at least one combustion chamber ( 14 ); a fuel pump ( 84 b ) mounted to the throttle body ( 10 ); a fuel pressure regulator ( 20 ) associated with the fuel pump ( 84 b ) and mounted to the throttle body ( 10 ); an electronic control unit (ECU) ( 42 ) mounted to the throttle body ( 10 ), the electronic control unit ( 42 ) being operatively connected to a fuel injector ( 45 ) for injecting fuel into the at least one combustion chamber; a fuel injector ( 45 ) mounted to the throttle body ( 10 ); an air purge pump ( 29 ) mounted to the throttle body ( 10 ); and an ignition module and power generating assembly ( 40 ) operatively associated the flywheel ( 2 ) of the engine ( 1 ), the power generating assembly producing sufficient electrical power for operating the injection system along with associated input signals to the electronic control unit ( 42 ) for determining ignition and injector triggering.