Patent ID: 6672270
Filing Date: 2004-01-06
Classification: F01L,F02B,F02D,Y02T

Abstract:
In an internal combustion engine which has at least one power piston that reciprocates within an engine cylinder and which is coupled to an engine crankshaft and having a camshaft which is turned by the crankshaft and having an acceleration control which is movable to vary the power output of the engine, the improvement comprising:a fuel inlet valve having a sleeve with an outlet end that opens into said engine cylinder and having at least one fuel inlet port in a sidewall of the sleeve, said fuel inlet valve having a valve piston which is movable along a path of travel which extends axially within said sleeve, said valve piston being movable away from said outlet end through open positions at which said outlet port is increasingly communicated with said outlet and being movable towards said outlet end into closed positions at which fuel flow from said inlet port to said outlet end is blocked by the valve piston, and a valve actuator having a first group of components interlinked to said valve piston which cyclically move said valve piston between open and closed positions in response to turning of said camshaft and having a second group of components interlinked to the valve piston which shifts said path of travel away from said outlet end in response to power increasing movements of said acceleration control and which shift said path of travel towards said outlet end in response to power decreasing movements of said acceleration control, said valve actuator including a linkage anchor member, a bell crank pivoted to said linkage anchor member and a link rod extending from said bell crank to said valve piston and being pivoted to each thereof; and wherein said first group of valve actuator components includes a cam follower which is reciprocated between two positions of rotation of said camshaft, said cam follower being interlinked to said bell crank to turn said bell crank between to angular orientations relative to said linkage anchor member thereby causing said link rod to open and close said inlet valve in response to rotation of said camshaft.