| 摘要 |
<p>This invention provides fuel supply method and circuit that can dramatically improve the fuel consumption of a petroleum fuel. In a fuel supply method using petroleum fuels such as gasoline, gas oils and fuel oils, one or a plurality of flow regulating valves are installed in a return pipe for returning an excess return fuel from a combustion chamber side to a fuel tank side. During combustion operation, in such a state that the back pressure of the return pipe is raised by closing the return pipe or reducing, to a given opening degree, the opening of the return pipe by a part of or all the flow rate regulating valves, the fuel is supplied through a supply pipe to a fuel ejection nozzle. Since the fuel is supplied in a highly pressurized state to the fuel ejection nozzle by the return back pressure, the heated high-temperature fuel is supplied through the fuel ejection nozzle directly into a combustion chamber or into a fuel chamber through a carburetor. A return fuel is circulated through the return pipe directly into the supply pipe and is mixed, in a sub tank, with a low-temperature fuel from a fuel tank, and the mixed fuel is supplied into the fuel ejection nozzle.</p> |
