Marine steering gear with emergency steering means

Details Marine steering gear with emergency steering means Marine steering gear with emergency steering means

1980-06-06

1982-12-07

Blix, Trygve M.

Ships

Steering mechanism

Fluid pressure

60403, 91509, B63H 2522

Patent

active

043621171

ABSTRACT:
A marine steering gear equipped with an emergency steering means which comprises an emergency directional control valve capable of replenishing hydraulic fluid or oil to a plurality of pressure chambers of an actuator for a hydraulic steering engine through check valves and stop valves, and a relief valve designed to set a desired charge pressure and installed in lines of oil to be supplied through the directional control valve, check valves, and stop valves so as to forcibly reduce the air volumes in the pressure chambers and thereby hold the rudder blade substantially in a hydraulically locked state.

REFERENCES:
patent: 2892310 (1959-06-01), Mercier
patent: 3112901 (1963-12-01), Kongelbeck
patent: 4209986 (1980-07-01), Cunningham

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