Outboard motor
AssigneeYamaha Marine Kabushiki Kaisha
InventorsYu Ito, Mitsuru Nagashima, Noriyoshi Hiraoka, Masanori Takahashi
Life of this patent
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Abstract
An outboard motor comprises a cowling, having a top cowling and a bottom cowling, that cooperate to define an engine compartment. An intake air duct draws outside air into the engine compartment. A water collecting part is arranged in the bottom cowling for accumulating water that may enter the cowling through the air duct. A water passage may also be provided for guiding water from the intake air duct to the water collecting part. The water passage may have air openings for allowing air to enter the engine compartment independent of the water. A floor of the engine compartment may be adapted to contain water splashing and direct water to a water collecting part.
Claims20
An outboard motor comprising a cowling generally enclosing an engine, the cowling comprising an upper cowling and a lower cowling that engage one another and define an engine compartment therewithin, the upper cowling having an intake assembly defining an intake chamber, an intake aperture formed through the upper cowling and opening into the intake chamber, an air duct opening from the intake chamber into the engine compartment so that intake air is drawn through the intake aperture into the intake chamber and then through the air duct to the engine compartment, and a water collector disposed in the lower cowling, the water collector having an opening and being adapted to accumulate water from within the engine compartment.
An outboard motor comprising a cowling generally enclosing an engine, the cowling comprising an upper cowling member and a lower cowling member that engage one another and define an engine compartment, the upper cowling member having an air intake assembly adapted to direct air from outside the cowling into the engine compartment, the lower cowling member comprising means for holding water that may enter the engine compartment, the outboard motor additionally comprising means for directing water from the air intake system toward the water holding means.
Dependencies are inferred from the claim text.