Fuel injection pump for internal combustion engines

Claim 1

A fuel injection pump for internal combustion engines having a mechanically operable camshaft which can generate injection procedure independently of engine speed, comprising in combination: a cam mounted on said canshaft and arranged to impart a constant lift or stroke; a pump piston arranged to carry out differently developed lift or stroke inspite of constant lift or said cam as well as including a piston rod and actuable independently of pump drive speed in response to the motion of said cam so that the stroke of said piston is partially utilized for the delivery of fuel, the fuel delivery volume being controllable by varying the overall effective stroke of said pump piston; control means for changing velocity of the overall effective piston stroke according to the angular attitude of said cam, said pump piston being movable in a pump cylinder chamber, said pump piston having exterior control edges which cooperate with said pump cylinder chamber for limiting the stroke of said pump piston, and including a housing wherein said control means includes; a cam follower roller, said roller being movable in response to rotation of said cam and in contact therewith; means for rotatably mounting said cam follower roller; power transmission means for transmission of motive power to said pump piston, said power transmission means having a first end operatively connected to said pump piston and a second end adjustably connected to said housing, said power transmission means including at least a cam lever drive unit operatively associated therewith; a first guide means having parallel sides for guiding said shaft means for said cam follower roller; a connecting rod having first and second ends, whereby said first end of said connecting rod is secured to said first guide means; a second swingable guide means for controlling movement of said connecting rod; and link means secured to the second end of said connecting rod for displacing said other end of said connecting rod in conformity with the number of revolutions of the combustion engine.