Accession Number : ADD000745

Title :   A Bridge-Type Electrohydraulic Actuator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Dalton,Raymond C

Report Date : 05 Jun 1974

Pagination or Media Count : 10

Abstract : The patent application relates to an electrohydraulic actuator including a bridge wherein each leg of the bridge comprises a series connected fixed orifice and a variable orifice joined at an hydraulic junction or bridge node. A doubly tapered rod passes through and controls the effective area of each variable orifice inversely with respect to the other. A bridge load is connected across the bridge nodes and controls an actuator load. The tapered rod is moved in accordance with a control signal applied to a positioning servomechanism.

Descriptors :   *Electrohydraulic valves, *Actuators, Servomechanisms, Orifices, Fuel systems, Patents

Subject Categories : Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE