Document Type and Number:
Japanese Patent JPS5320638
Kind Code:
B2
Abstract:
A remote control system for ship's rudders includes a hydraulic rudder actuator and a reversible variable displacement pump connected to drive it, the pump displacement being under the control of a hydraulic bridge circuit utilizing a pair of bleed circuits controlled respectively by variable command orifices and variable response orifices. The command orifices are constituted by a pair of summing valves responsive to the algebraic sum (or difference) of the angular displacements of a command actuator on the one hand and the rudder actuator on the other hand. The command actuator is hydraulically driven and electrically controlled by a closed loop servo system including a helm control which may comprise an automatic pilot.
Application Number:
JP732873A
Publication Date:
June 28, 1978
Filing Date:
January 16, 1973
Export Citation:
International Classes:
B63H25/22; B63H25/30; F15B9/04; F15B11/08