Water jet propulsion boat
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorJunya Ono
Life of this patent
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Abstract
A water jet propulsion boat includes a hull, a drive source, a power storage, a jet propulsion mechanism, a power generator, and a controller. The hull includes a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including at least a main flow path extending from the water inlet to the jet outlet. The drive source is located in the hull, and the power storage supplies power to the drive source. The jet propulsion mechanism includes an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow to generate a propulsive force to the hull. The power generator is located in the flow path and uses the water flow generated by the impeller to generate power. The controller charges the power storage with the power generated by the power generator.
Claims19
A water jet propulsion boat comprising:
- a hull including a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including a main flow path extending from the water inlet to the jet outlet;
- a drive source in the hull;
- a power storage to supply power to the drive source;
- a jet propulsion mechanism including an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow in the flow path to generate a propulsive force;
- a power generator in the flow path to use the water flow generated by the impeller to generate power;
- and
- a controller configured or programmed to charge the power storage by using the power generated by the power generator;
- wherein
- the flow path includes a branched flow path extending from the main flow path;
- and
- the power generator is in the branched flow path.
A water jet propulsion boat comprising:
- a hull including a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including a main flow path extending from the water inlet to the jet outlet;
- a drive source in the hull;
- a jet propulsion mechanism including an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow in the flow path to generate a propulsive force to the hull;
- a power generator in the flow path to use the water flow generated by the impeller to generate power;
- electrical equipment on the hull;
- and
- a controller configured or programmed to supply power generated by the power generator to the electrical equipment;
- wherein
- the flow path includes a branched flow path extending from the main flow path;
- and
- the power generator is in the branched flow path.
A water jet propulsion boat comprising:
- a hull including a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including a main flow path extending from the water inlet to the jet outlet;
- a drive source in the hull;
- a power storage to supply power to the drive source;
- a jet propulsion mechanism including an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow in the flow path to generate a propulsive force;
- a power generator in the flow path to use the water flow generated by the impeller to generate power;
- and
- a controller configured or programmed to charge the power storage by using the power generated by the power generator;
- wherein
- the power generator is in the main flow path;
- and
- the power generator is downstream of the impeller in the main flow path.
A water jet propulsion boat comprising:
- a hull including a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including a main flow path extending from the water inlet to the jet outlet;
- a drive source in the hull;
- a jet propulsion mechanism including an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow in the flow path to generate a propulsive force to the hull;
- a power generator in the flow path to use the water flow generated by the impeller to generate power;
- electrical equipment on the hull;
- and
- a controller configured or programmed to supply power generated by the power generator to the electrical equipment;
- wherein
- the power generator is in the main flow path;
- and
- the power generator is downstream of the impeller in the main flow path.
Dependencies are inferred from the claim text.