Steering control system for ships

Details Steering control system for ships Steering control system for ships

1977-07-08

1979-02-20

Blix, Trygve M.

Ships

Steering mechanism

Fluid pressure

137595, B63H 2522

Patent

active

041400755

ABSTRACT:
A steering control system for a ship including a hydraulic rudder actuator, a reversible variable displacement pump for powering the rudder actuator, a valve system for controlling the pump in responsive to certain input signals, and a helm system for generating command signals. The valve system includes two parallel fluid flow paths with at least oe relief valve in each flow path for generating a differential pressure to control the pump output. The valve system also includes a control valve with two movable members, one moving in response to rudder motion and the other moving in response to command signals, and controlling the relief valves in the flow paths. A permanent magnet electric motor receives command signals from a manual helm or an automatic pilot or otherwise, and drives one of the moving members of the control valve.

REFERENCES:
patent: 2583407 (1952-01-01), Binder
patent: 2784703 (1957-03-01), Davis
patent: 3237583 (1966-03-01), Johnson
patent: 3468126 (1969-09-01), Mercier
patent: 3758235 (1973-09-01), Breeden
patent: 3799096 (1974-03-01), Jeffery
patent: 3986475 (1976-10-01), Heiser

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