Outboard motor
AssigneeYamaha Marine Kabushiki Kaisha
InventorYu Ito
Life of this patent
Estimating the term…
Abstract
An outboard motor can includes an engine for driving a propulsion device, a cowling for covering the engine, a fresh air intake opening formed in the cowling for drawing fresh air, and an engine compartment defined in the cowling. The outboard motor can have a bottom part defined below the engine compartment, a water collecting part disposed below the bottom part for receiving water that entered the cowling, a water passage for communicating the bottom part and the water collecting part, and a drain hole formed in a bottom portion of the water collecting part.
Claims16
An outboard motor including an engine configured to drive a propulsion device, a cowling covering the engine, a fresh air intake opening formed in the cowling configured to guide fresh air into an interior of the cowling, and an engine compartment defined in the cowling, the outboard motor comprising:
- a bottom part defined below the engine compartment;
- a water collecting chamber disposed below the bottom part and configured to receive water in the cowling;
- a first water passage conduit connecting the bottom part and the water collecting part;
- and
- a drain hole formed in a bottom portion of the water collecting part.
An outboard motor including an engine configured to drive a propulsion device a cowling covering the engine, fresh air intake opening formed in the cowling configured to guide fresh air into an interior of the cowling, and an engine compartment defined in the cowling, the outboard motor comprising:
- a bottom part defined below the engine compartment;
- a water collecting part disposed below the bottom part and configured to receive water in the cowling;
- a first water passage connecting the bottom part and the water collecting part;
- a drain hole formed in a bottom portion of the water collecting part;
- a labyrinth structure configured to separate water from air, the labyrinth structure being provided inside the water collecting part.
An outboard motor including an engine configured to drive a propulsion device, a cowling covering the engine, a fresh air intake opening formed in the cowling configured to guide fresh air into an interior of the cowling, and an engine compartment defined in the cowling, the outboard motor comprising:
- a bottom part defined below the engine compartment;
- a chamber disposed below the bottom part with at least one conduit extending between the engine compartment and the chamber and for draining the water to an outside of the outboard motor;
- and
- means for increasing the head difference between the engine compartment and the chamber.
Dependencies are inferred from the claim text.