Back to results
US 12,391,350 B2Granted
Outboard motor and marine vessel
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsTakuma Matsunaga, Tomohiro Hagi
Life of this patent
Estimating the term…
Abstract
An outboard motor includes an oil chamber, an oil passage connected to the oil chamber via an oil passage connection port, and an air guide, located in a vicinity of or adjacent to the oil passage connection port in a right-left direction of an outboard motor body, to guide air remaining in the oil chamber to the oil passage connection port when hydraulic oil is discharged from the oil chamber via the oil passage.
Claims20
An outboard motor comprising:
- an outboard motor body;
- a steering shaft;
- a steering cylinder including:
- a piston rod extending in a right-left direction of the outboard motor body;
- a piston fixed to the piston rod;
- and
- a cylinder body including therein the piston and an oil chamber to store hydraulic oil;
- an oil passage connected to the oil chamber via an oil passage connection port to supply the hydraulic oil to the oil chamber and discharge the hydraulic oil from the oil chamber;
- and
- an air guide, having a disk shape and located in a vicinity of or adjacent to the oil passage connection port in the right-left direction, to guide air remaining in the oil chamber to the oil passage connection port when the hydraulic oil is discharged from the oil chamber via the oil passage;
- wherein
- the steering cylinder is operable to rotate the steering shaft and the outboard motor body in the right-left direction by adjusting an amount of the hydraulic oil in the oil chamber and moving the cylinder body in the right-left direction.
9 more elements
A marine vessel comprising:
- a hull including a steering wheel;
- and
- an outboard motor attached to the hull;
- wherein
- the outboard motor includes:
- an outboard motor body;
- a steering shaft;
- a steering cylinder including:
- a piston rod extending in a right-left direction of the outboard motor body;
- a piston fixed to the piston rod;
- and
- a cylinder body including therein the piston and an oil chamber to store hydraulic oil;
- an oil passage connected to the oil chamber via an oil passage connection port to supply the hydraulic oil to the oil chamber and discharge the hydraulic oil from the oil chamber;
- and
- an air guide, having a disk shape and located in a vicinity of or adjacent to the oil passage connection port in the right-left direction, to guide air remaining in the oil chamber to the oil passage connection port when the hydraulic oil is discharged from the oil chamber via the oil passage;
- wherein
- the steering cylinder is operable to rotate the steering shaft and the outboard motor body in the right-left direction by adjusting an amount of the hydraulic oil in the oil chamber and moving the cylinder body in the right-left direction based on an operation of the steering wheel.
14 more elements
Dependencies are inferred from the claim text.