Outboard motor power head assembly

Details Outboard motor power head assembly Outboard motor power head assembly

1994-06-07

1996-03-12

Avila, Stephen

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440 77, 440 88, 440 89, B63H 512

Patent

active

054981816

ABSTRACT:
Disclosed herein is an outboard motor including a fore and aft center plane and comprising a powerhead assembly including a two stroke internal combustion engine including a cylinder block including a port side, a starboard side, a plurality of vertically aligned cylinders in a single bank, which cylinders each include an axis extending at an angle to said center plane and to one of said port and starboard sides, and an exhaust port on the other of said port and starboard sides, and an exhaust gas passage including a main portion extending vertically adjacent said center plane, and a like plurality of elbow portions connecting said exhaust ports to said main portion, which elbow portions include any one change in direction.

REFERENCES:
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patent: 3692006 (1972-09-01), Miller et al.
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patent: 4064823 (1977-12-01), Draxler
patent: 4554892 (1985-11-01), Amemori et al.
patent: 4594970 (1986-06-01), Baars et al.
patent: 4846300 (1989-07-01), Boda
patent: 4951465 (1990-08-01), Torigai
patent: 4993369 (1991-02-01), Breckenfeld et al.
patent: 5049100 (1991-09-01), Yamamoto et al.

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