Outboard motor
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsKimitaka Saruwatari, Kouichi Isozaki
Life of this patent
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Abstract
An outboard motor includes an engine including a cylinder body and a crank case, an engine holder configured to come into contact with both the cylinder body and the crank case along a second bonding surface, a power transmission shaft passing through a hole between the engine holder and both the cylinder body and the crank case, and a first sealing member between a portion of the power transmission shaft above the second bonding surface and above both the cylinder body and the crank case to separate an oil region above the first sealing member from an external water entering region below the first sealing member.
Claims14
An outboard motor comprising:
- an engine including a cylinder body and a crank case adjacent to the cylinder body in a horizontal direction and bonded to the cylinder body along a first bonding surface;
- an engine holder configured to come into contact with both the cylinder body and the crank case along a second bonding surface, and including an upper surface to which the engine is fixed;
- a power transmission shaft including a crank shaft rotatably supported between the cylinder body and the crank case and including a drive shaft coupled to the crank shaft and configured to pass through a hole between the cylinder body, the crank case, and the engine holder in a direction intersecting with the second bonding surface;
- and
- a first sealing member between a portion of the power transmission shaft above the second bonding surface and above both the cylinder body and the crank case, and configured to separate an oil region above the first sealing member from an external water entering region below the first sealing member.
Dependencies are inferred from the claim text.