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US 8,166,927 B2Granted
Outboard motor
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorYoshihito Fukuoka
Life of this patent
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Abstract
An outboard motor that facilitates replacement of an impeller of a water pump includes a water pump arranged to pump coolant and a pump driving mechanism arranged to distribute power from a drive shaft to the water pump. At least a portion of the water pump in which an impeller is housed can be detached and attached from the outside of an upper case. The pump driving mechanism distributes power in a direction generally perpendicular to the axial direction of the drive shaft and transmits the power to the water pump.
Claims10
An outboard motor comprising:
- an engine;
- a casing arranged to house a drive shaft, the casing being disposed directly below the engine;
- a water pump including an impeller and arranged to pump coolant;
- and
- a pump driving mechanism arranged to distribute power from the drive shaft and transmit the power to the water pump;
- wherein
- at least a portion of the water pump in which the impeller is housed can be detached and attached from the outside of the casing.
4 more elements
Dependencies are inferred from the claim text.