Outboard motor
AssigneeSuzuki Motor Corporation
InventorYasushi MIYASHITA
Life of this patent
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Abstract
An outboard motor includes a cooling device which includes a supply passage supplying a cooling water taken into a lower unit to a cooling mechanism. A first shaft portion of the connecting mechanism has a cylindrical shape, is provided in an upper part of the lower unit, and has an axis coaxial with the axis of a drive shaft. A second shaft portion has a cylindrical shape, is provided in a lower part of an upper unit, and has an axis coaxial with the axis of the drive shaft. One shaft portion of the first and the second shaft portions is inserted into the other shaft portion to be pivotable relative to the other shaft portion. The drive shaft is inserted into the one shaft portion with a space. A part of the supply passage is formed of the space between the drive shaft and the one shaft portion.
Claims8
An outboard motor comprising:
- an upper unit including a drive motor;
- a lower unit including a propeller shaft;
- a drive shaft configured to transmit a rotation of the drive motor to the propeller shaft;
- a connecting mechanism connecting the lower unit to the upper unit to be pivotable about an axis of the drive shaft;
- and
- a cooling device, wherein
- the cooling device includes
- a cooling mechanism provided in the upper unit and configured to cool an equipment requiring cooling including the drive motor by using cooling water,
- an intake port configured to take water outside the outboard motor into the lower unit as cooling water, and
- a supply passage provided from the lower unit to the upper unit and configured to supply the cooling water taken into the lower unit to the cooling mechanism,
- the connecting mechanism includes
- a first shaft portion having a cylindrical shape, provided in an upper part of the lower unit, and having an axis coaxial with the axis of the drive shaft, and
- a second shaft portion having a cylindrical shape, provided in a lower part of the upper unit, and having an axis coaxial with the axis of the drive shaft, and
- one shaft portion of the first shaft portion and the second shaft portion is inserted into the other shaft portion to be pivotable relative to the other shaft portion,
- the drive shaft is inserted into the one shaft portion with a space, and
- a part of the supply passage is formed of the space between the drive shaft and the one shaft portion.
Dependencies are inferred from the claim text.