Exhaust arrangement for outboard motor

Power plants – Internal combustion engine with treatment or handling of... – Common receiver having inlets from plural cylinder

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Details

F02B 6104, F02B 6106

Patent

active

058063110

ABSTRACT:
A number of embodiments of four-cylinder, four-cycle outboard motors having a compact exhaust system and yet one in which the exhaust pulses from one cylinder are not transmitted to other cylinders so as to interfere with their operation. This is accomplished by providing a series of paired exhaust manifolds with no two successive firing cylinders being served by the same manifold.

REFERENCES:
patent: 4022019 (1977-05-01), Garcea
patent: 4484440 (1984-11-01), Oki et al.
patent: 5010731 (1991-04-01), Onishi
patent: 5109668 (1992-05-01), Lindstedt
patent: 5251439 (1993-10-01), Nakase et al.
patent: 5471835 (1995-12-01), Friedman

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