Cruise control device for vehicles
First Claim
1. A speed control device for an internal combustion engine comprising a movable actuator member for connection to and conjoint movement with an accelerator linkage of the engine, a normally freely movable abutment member, a clamp device operable to clamp the abutment member in any of a range of positions, and a resilient connection established between the actuator member and the abutment member through a vacuum actuator in pneumatic connection with an inlet manifold of the engine.
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Abstract
A speed control device for a vehicle driven by an internal combustion engine comprises a longitudinally movable actuator member connected to the accelerator control linkage of the engine, a longitudinally movable abutment member, a device for optionally locking the abutment member against longitudinal movement, a spring and a flexible diaphragm connecting the actuator and abutment members, and means for applying manifold vacuum from the internal combustion engine to the diaphragm whereby to vary the relative positions of the actuator and abutment members. Preferably the device locking the abutment member is controlled by an acceleration responsive device so as to unlock the abutment whenever the vehicle is subjected to more than a predetermined degree of deceleration.
21 Citations
5 Claims
- 1. A speed control device for an internal combustion engine comprising a movable actuator member for connection to and conjoint movement with an accelerator linkage of the engine, a normally freely movable abutment member, a clamp device operable to clamp the abutment member in any of a range of positions, and a resilient connection established between the actuator member and the abutment member through a vacuum actuator in pneumatic connection with an inlet manifold of the engine.
Specification