Cruise Control System - Mechanism & Function: Actuator: Notes
The actuator has a diaphragm whose movement is controlled using vacuum and atmospheric pressure. The vacuum is controlled by the vacuum valve and the atmospheric pressure is controlled by the vent valve. The diaphragm is connected to the throttle valve through the cruise control cable and linkage so that the throttle valve opens to closes as the diaphragm moves. With the cruise control turned OFF (system deactivated), no diaphragm operation occurs as the atmospheric pressure is prevailing inside the actuator.
ACTUATOR SPECIFICATION
| Control system | Vacuum pressure operation |
|---|---|
| Diaphragm stroke | 35 mm (1.38 in) |
| Rated voltage | 12 V |
| Effective diameter of diaphragm | 150 mm (5.91 in) |
| Effective area of diaphragm | 125 cm2 (19.4 sq in) |