Multiple Area Hydraulic Actuator.
OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
Pagination or Media Count:
Two or more fluid motors of the expandable chamber type are connected to a source of pressurized fluid, and are cross-connected to one another through valving, such that the power delivering element operates rapidly with a low force in one direction, positive force, until a high resistance is encountered. Then a valve shifts automatically to increase the positive force output while the power delivering element operates at a lower speed. Further, upon reversal of the motors, high-pressure and low-speed retraction occurs if a substantial positive load remains against the power delivering element. This results in nice slow precise control of the apparatus. Modified author abatract
- Hydraulic and Pneumatic Equipment