Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...
Patent
1995-09-01
1997-12-30
Sotelo, Jesus D.
Marine propulsion
Screw propeller
With means effecting or facilitating movement of propulsion...
114150, D63H 2542
Patent
active
057022755
ABSTRACT:
A steering mechanism for a marine vehicle operably connected to a propulsion unit, which comprises a hydraulic cylinder having opposed stop members, e.g., end caps, and is supported by a rod extending along the longitudinally axis of the cylinder. A piston is affixed to the support rod and mounted in the cylinder, and fluid passageways open to the cylinder and are spaced longitudinally to each side of the piston to form opposed chambers in the cylinder. The piston is provided with a longitudinal bore extending substantially parallel to the longitudinal axis of the cylinder, so that the bore establishes fluid communication between the opposed chambers. Valve member disposed in the bore is biased to a normally dosed position, but actuated to an open position when the piston is brought into abutting relationship with a stop member thereby establishing fluid communication between the opposed chambers, the valve member and the fluid passageways. A steering arm extends fixedly from the hydraulic cylinder and is connected to the propulsion unit. When hydraulic fluid is selectively transported to either side of the piston mounted on the support rod, the cylinder moves causing accompanying movement of the steering arm, thereby effecting steering movement of the propulsion unit.
REFERENCES:
patent: 4416637 (1983-11-01), Kashmerick et al.
patent: 5213527 (1993-05-01), Fetchko
Peters R. Jonathan
Sotelo Jesus D.
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