Patent ID: 7478628
Filing Date: 2009-01-20
Classification: F02D,F02M,Y02T

Abstract:
1. A fuel delivery apparatus for an internal combustion engine having an engine exhaust system, the apparatus comprising components: a fuel tank; a fuel pump; a fuel line; a first expansion valve; a second expansion valve; an expansion tank; a vapor fuel injector; a liquid fuel injector; a temperature sensor, a pressure sensor, a controller providing signal processing means; the fuel line providing fuel communication between: (a) fuel tank and fuel pump; (b) fuel pump and first expansion valve; (c) fuel pump and second expansion valve within an alpha portion of the fuel line positioned in thermal communication with the engine exhaust system; (d) fuel pump and liquid fuel injector; and (e) expansion tank and vapor fuel injector; the expansion valves and temperature and pressure sensors engaging the expansion tank; the injectors engaging the engine; the controller in signal communication with the sensors, the expansion valves, and the injectors; whereby, the controller meters fuel into the expansion tank through the expansion valves thereby controlling a fuel vapor in the expansion tank to a temperature set point, and whereby, the controller meters fuel into the engine through the injectors.