| US 7,524,223 B2 | ||
| Outboard motor | ||
| Katsumi Ochiai, Shizuoka-ken (Japan); and Koshiro Inaba, Shizuoka-ken (Japan) | ||
| Assigned to Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka (Japan) | ||
| Filed on Oct. 25, 2006, as Appl. No. 11/586,784. | ||
| Claims priority of application No. 2005-309822 (JP), filed on Oct. 25, 2005. | ||
| Prior Publication US 2007/0093152 A1, Apr. 26, 2007 | ||
| Int. Cl. B63H 21/10 (2006.01); B63H 21/38 (2006.01); B63B 35/73 (2006.01); B63B 13/00 (2006.01); F02B 61/04 (2006.01); F02M 35/16 (2006.01); F01P 3/20 (2006.01); B63H 21/32 (2006.01); F01N 7/00 (2006.01); F01N 7/12 (2006.01); F01N 1/08 (2006.01) | ||
| U.S. Cl. 440—88R [440/88 A; 440/88 N; 440/89 F; 440/89 J] | 22 Claims |
| 1. An outboard motor comprising:
a cowling having an upper portion and at least partially defining an engine compartment;
a right-side intake port formed in a right side surface portion of the upper portion of the cowling;
a left-side intake port formed in a left side surface portion of the upper portion of the cowling; and
a water separating portion being in fluid communication with the right-side and left-side intake ports, the water separating
portion and the engine compartment being in fluid communication with each other by an intake duct, wherein the water separating
portion includes first and second water separating portions, the first water separating portion having an intake port communication
passage that communicates between the right-side intake port and the left-side intake port without any barrier directly between
and resisting water flow between the right-side intake port and the left-side intake port, the intake port communication passage
being defined by a front wall, a rear wall, a bottom wall and a ceiling and extending between the right-side intake port and
the left-side intake port, the second water separating portion being in fluid communication with the first water separating
portion via a communication port, the second water separating portion being in fluid communication with the engine compartment
for discharging water therefrom.
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