Tilt mechanism for outboard drive unit

Details Tilt mechanism for outboard drive unit Tilt mechanism for outboard drive unit

1993-07-13

1995-02-14

Swinehart, Edwin L.

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440900, B63H 512

Patent

active

053890191

ABSTRACT:
Three embodiments of hydraulic assemblies for controlling the position of an outboard drive mounted on the transom of a watercraft and for permitting the outboard drive to pop up when an underwater obstacle is struck and to return to its normal position once the underwater obstacle is cleared. In one embodiment, a hydraulic circuit is provided that permits the return to any of a plurality of trim adjusted positions without the necessity of employing a floating piston. In all embodiments, there is also provided a control valve assembly for manually opening the circuitry between the chambers of the hydraulic assembly for manual tilt and trim movement. This control is accessible from either side of the unit.

REFERENCES:
patent: 4784625 (1988-11-01), Nakahama

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