Injection timing control device for internal combustion engine

Claim 1

A hydraulically operated injection timing control device for an internal combustion engine in which a first member is connected to one of the engine and a fuel injection pump associated with the engine, and a second member including a shaft connected to the other, said device comprising: a cam assembly operatively connecting the first and second members to each other; a hydraulic actuator for actuating the cam assembly; connector means for operatively connecting the hydraulic actuator to the cam assembly, the hydraulic actuator controllably urging the connector means on and along a first line of action in response to a hydraulic fluid pressure communicated thereto; and returning means for returning the connector means on and along a second line of action which is parallel to and opposite in direction to the first line of action; said first and second lines of action commonly lying in a plane which is perpendicular to an axis of the shaft of the second member and contains an axis of the hydraulic actuator therein; the connector means comprising a generally U-shaped connector plate, said plane being parallel to said connector plate; the connector means further comprising a bracket extending from the connector plate perpendicularly thereto; the connector means yet further comprising a pin rigidly carried at one end thereof by the bracket and having an axis perpendicular to the second line of action, said first line of action being defined by a point of connection between the bracket and the pin.