Power transmission system for an inboard/outboard motor

Details Power transmission system for an inboard/outboard motor Power transmission system for an inboard/outboard motor

1991-10-03

1994-07-12

Huppert, Michael S.

Marine propulsion

Engine, motor, or transmission control means

For transmission

440 75, B63H 2306

Patent

active

053283961

ABSTRACT:
A marine outboard drive having an outboard drive unit that includes a bevel gear forward, reverse transmission having hydraulicly operated clutches. A hydraulic pump for actuating the clutches and for lubricating the transmission is driven off the rear end of the input shaft and control valve means selectively communicates the fluid from the hydraulic pump with the hydraulic clutches. The valve means is a rotary plug type valve but is constructed so as to minimize axial and radial forces acting that would tend to bind its movement. The construction of the outboard drive unit is such that the bevel gear transmission and hydraulically operated clutches can conveniently be inserted through like diameter oppositely facing openings formed in the upper end of the housing assembly of the outboard drive unit.

REFERENCES:
patent: 4767365 (1988-08-01), Nakahama et al.
patent: 4946409 (1990-08-01), Suzuki

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