Outboard motor

Details Outboard motor Outboard motor

2008-07-08

2008-07-08

Kamen, Noah (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

C123S184360, C123S184490, C440S08800J

Reexamination Certificate

active

07395795

ABSTRACT:
An outboard motor is mounted on a hull and has an engine disposed in an upright position in a cowling so that a crankshaft thereof extends generally vertically during cruising. An embodiment of the motor includes a first surge tank disposed on the opposite side of a cylinder head of the engine with respect to the crankshaft of the engine; long intake pipes that communicate with the first surge tank and an intake port of the engine; second surge tanks disposed between the long intake pipes and the engine for communicating with the first surge tank; short intake pipes provided in the midway of the long intake pipes on the engine side for communicating with the second surge tanks; and on-off valves for opening and closing the short intake pipes.

REFERENCES:
patent: 6736100 (2004-05-01), Katayama
patent: 7213558 (2007-05-01), Iwata et al.
patent: 2006/0102128 (2006-05-01), Iwata et al.
patent: A-2002-195118 (2002-01-01), None

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