Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1991-01-15
1992-01-28
Kamen, Noah P.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123195C, 181229, F02B 7700
Patent
active
050835386
ABSTRACT:
An air intake system for an internal combustion engine associated with the power head of an outboard marine propulsion system. The engine includes a vertical crank shaft and a flywheel mounted to the crank shaft above the engine block. An air manifold is mounted to the forward side of the engine, and includes an air inlet for receiving intake air. The air intake system includes an air flow path or duct defined by a series of walls, a rearwardly facing air intake opening and a discharge opening for supplying intake air to the air manifold inlet. The engine is enclosed within a cowl assembly, and the air intake opening is located toward the upper end of the cowl assembly interior. The walls defining the air flow duct are formed integrally with a flywheel cover for facilitating assembly of the air flow duct to the engine. The air flow duct minimizes ingestion of water into the engine and reduces engine noise in the boat.
REFERENCES:
patent: 3800910 (1974-04-01), Rose
patent: 4522602 (1985-06-01), Okazaki
patent: 4620607 (1986-11-01), Breckenfeld et al.
patent: 4846300 (1989-07-01), Boda
Brunswick Corporation
Kamen Noah P.
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