Accession Number : ADD001328
Title : Speed Control Mechanism.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Wilson,Richard C
Report Date : 25 Jun 1974
Pagination or Media Count : 6
Abstract : The patent relates to a speed control mechanism having a main spool valve and metering valves which controls the output to and return flow from an hydraulic fluid actuator. The main spool valve controls the direction and acceleration of the actuator, and the metering valves determine the maximum velocity of the actuator independent of the load. Adjustment features are provided to control the maximum displacement and the speed of the displacement of the main spool valve. Moreover, a novel adjustment feature is incorporated into the main spool valve to control the maximum volumetric flow rate through the metering valves.
Descriptors : *Hydraulic actuators, *Speed regulators, *Patents, Hydraulic equipment, Hydraulic valves, Flow rate, Control systems
Subject Categories : Hydraulic and Pneumatic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE