Fuel control valve

Abstract

A fuel control valve for limiting the flow of fuel to an internal combustion engine having fuel injector means. A fuel control valve has a series of orifices in a fuel control block and a cam located in the block and communicating with a fuel pump for an internal combustion engine. The cam is rotatably movable in the control block so as to increase and decrease the cross-sectional flow area for the fuel to the engine by communicating with one or more fuel orifices or jets in the fuel control block. The cam is mechanically connected to the accelerator of the engine so that fuel supply to the stacks leading to the cylinders of the engine is directly controlled according to the operation of the accelerator pedal. In this way, the fuel flow and pressure to the fuel injector is immediately limited when the operator releases the accelerator. This prevents loss of fuel and leakage of fuel after the engine is shut off since the flow area cross section can be decreased to essentially completely block the flow of fuel to the fuel injector, thereby preventing any drip into the combustion chamber.

Dependencies are inferred from the claim text.