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An electrical motor controls the movement of a slider threaded over a threaded shaft of the motor. A sensor detects the position of the slider along the threaded shaft to control the movement of the motor which is also controlled by the operational state of the engine. The slider controls the positi

An electrical motor controls the movement of a slider threaded over a threaded shaft of the motor. A sensor detects the position of the slider along the threaded shaft to control the movement of the motor which is also controlled by the operational state of the engine. The slider controls the position of a control sleeve fitted slidably over a fuel distributing plunger relative to the plunger so that the sleeve opens and closes a spill port provided in the side surface of the plunger in order to control the amount of fuel supplied to the engine cylinders.

대표청구항 ▼

A fuel injection system for an internal combustion engine comprising (a) housing; (b) a fuel distributing plunger disposed within said housing and moving angularly and axially thereof in synchronism with said engine, said plunger having a spill port opening outwardly; (c) a control sleeve fitted sli

A fuel injection system for an internal combustion engine comprising (a) housing; (b) a fuel distributing plunger disposed within said housing and moving angularly and axially thereof in synchronism with said engine, said plunger having a spill port opening outwardly; (c) a control sleeve fitted slidably over said plunger for opening and closing said spill port to control the amount of fuel injected into said engine; (d) a reversible electric motor disposed within said housing and having a threaded shaft; (e) a slider disposed within said housing and threaded over said threaded shaft of said motor and movable along said motor shaft by said motor; (f) a linkage for transmitting movement of said slider to said control sleeve to move the same to open and close said spill port; (g) sensing means disposed within said housing for sensing electrically the position of said slider along said motor shaft and for outputting a signal representing the position of said slider, said sensing means including a rotational potentiometer having a rotational shaft, a first gear secured thereto, said motor shaft having a second gear secured thereto and meshing with said first gear to drive the same, whereby the angular position of said potentiometer shaft represents the position of said slider along said motor shaft, and (h) at least one vane provided on said second gear subjected to the resistance of fuel within said housing while said motor is being driven, for restricting the maximum speed of said motor, said motor being responsive to an operational state of said engine and to the signal representing the position of said slider to control the position of said slider.