FLUID PRESSURE SERVO DETENT MECHANISM

摘要

A fluid pressure servo detent mechanism for stopping or reversing linear movement of a piston in a cylinder, the cylinder and piston defining an expansible and contractable fluid chamber. One-way inlet and outlet valves are associated with an inlet and an outlet respectively to the chamber, the inlet valve including a valve element arranged to be held in a valve closed position by fluid pressure in the inlet greater than that in the chamber, the outlet valve including a valve element arranged to be held in a valve closed position by fluid pressure in the chamber greater than that in the outlet. A valve actuator is responsive to given movement of the piston in one direction to move the inlet and outlet valve elements to closed and open positions respectively and substantially simultaneously.