Boat propeller drive unit

Details Boat propeller drive unit Boat propeller drive unit

1986-09-17

1988-05-03

Peters, Jr., Joseph F.

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440 2, B63H 512

Patent

active

047417137

ABSTRACT:
A boat propeller drive unit of the inboard-outboard type, having a portion securely mounted in an opening in a boat transom and adapted to be drivingly connected to a motor inboard of the transom, and having a propeller leg disposed outboard of the transom. This leg is adjustable to various angles in relation to the transom by tilting about a horizontal axis and is pivotable about an upright steering support. The drive unit comprises an inductive sensor connected to a wire passing through a central bore of the steering shaft, and a magnetic core fixedly attached to the propeller leg. The magnetic core has magnetic areas separated by non-magnetic areas, and when the magnetic core is moved under the sensor, the sensor functions as a pulse counter to count a pulse of each magnetic area is moved under it. The sensor thus provides an output signal depending on the tilting angle relative to the transom, which signal indicates that angle.

REFERENCES:
patent: 3136287 (1964-06-01), North
patent: 4364733 (1982-12-01), Lohner
patent: 4624643 (1986-11-01), Ohlsson et al.

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