Excess fuel starting device for fuel injection engines

Claim 1

An excess fuel starting device for a fuel injection engine having a full load stop coacting with the engine throttle linkage to limit the fuel input thereto comprising, a hydraulic actuator operatively connected to the full load stop for movement thereof between a normal operating full load postiion and an excess fuel starting position, said actuator comprising a housing having a cylindrical bore therein, an excess fuel piston slidably disposed within said bore and forming a first chamber at one end thereof, means operatively connecting the full load stop plate with said excess fuel piston, spring means urging said excess fuel piston and stop plate into an excess fuel position, a coaxial bore within said excess fuel piston opening into said first chamber, a free piston slidably disposed within said coaxial bore and forming a second chamber at one end thereof, a fluid inlet port in said housing opening into said housing bore, conduit means connecting said fluid inlet port with a source of fluid pressurized during running of the engine, fluid passage means in said excess fuel piston connecting said fluid inlet port with said second chamber when said excess fuel piston is in the excess fuel position to thereby upon engine starting pressurize said second chamber, move said free piston against the end of said housing bore and move said excess fuel piston and full load stop into a normal operating full load position, said fluid inlet port opening into said first chamber in the normal operating full load position of said excess fuel piston to pressurize said chamber and provide a holding force acting against said excess fuel piston while the engine is running.