No-feedback steering system for marine drives

Details No-feedback steering system for marine drives No-feedback steering system for marine drives

1982-12-29

1985-12-10

Blix, Trygve M.

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

114144R, 440 55, B63H 2126

Patent

active

045576955

ABSTRACT:
A steering system for a steerable marine drive has a fluid filled cylinder with the housing connected to the boat and the piston connected to the steering arm of the marine drive. The piston contains valves operated by the control cable connected to the steering wheel of the boat. When the valves are closed, the piston, and hence the marine drive, is locked in position. Propeller torque or other forces imposed on the marine drive are transferred to the boat rather than to the control cable and the steering wheel. To steer the marine drive, the control cable initially opens the valves in the piston, unlocking the marine drive. Thereafter it moves the marine drive to the desired position. A lost motion mechanism, including that used in a vane steering system, may be utilized for this purpose. Alternately, the piston may lock the lost motion mechanism rather than the marine drive, to prevent the transmission of forces to the steering wheel.

REFERENCES:
patent: 3228632 (1966-01-01), Hunth
patent: 4013249 (1977-03-01), Meyer et al.
patent: 4227481 (1980-10-01), Cox et al.
patent: 4349341 (1982-08-01), Morgan et al.

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