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US 2017/0361910 A1Published application
Jet propelled watercraft and jet propulsion assembly
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorKoichiro MOROTA
Life of this patent
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Abstract
A jet propelled watercraft includes a watercraft body, an engine housed in the watercraft body, a jet propulsion unit that suctions and jets water with a drive force of the engine, a first exhaust pipe connected to an exhaust port of the engine, and a catalyst storage connected to the first exhaust pipe, wherein the first exhaust pipe and the catalyst storage are integral and unitary with each other.
Claims20
A jet propelled watercraft comprising:
- a watercraft body;
- an engine housed in the watercraft body;
- a jet propulsion unit that suctions and jets water with a drive force of the engine;
- a first exhaust pipe connected to an exhaust port of the engine;
- and
- a catalyst storage connected to the first exhaust pipe;
- wherein
- the first exhaust pipe and the catalyst storage are integral and unitary with each other.
5 more elements
A jet propulsion assembly comprising:
- an engine housed in a watercraft body;
- a jet propulsion unit that suctions and jets water with a drive force of the engine;
- an exhaust pipe connected to an exhaust port of the engine;
- and
- a catalyst storage connected to the exhaust pipe;
- wherein
- the exhaust pipe and the catalyst storage are integral and unitary with each other.
4 more elements
A jet propulsion assembly comprising:
- an engine housed in a watercraft body;
- a jet propulsion unit that suctions and jets water with a drive force of the engine;
- an exhaust pipe connected to an exhaust port of the engine;
- and
- a catalyst storage connected to the exhaust pipe;
- wherein
- the exhaust pipe includes:
- a lead-out portion connected to the exhaust port, the lead-out portion through which exhaust gas discharged from the exhaust port is led out;
- and
- a bent portion that is connected to the lead-out portion, extends forward from the lead-out portion, is bent back, and extends rearward;
- wherein
- the lead-out portion and the bent portion are integral and unitary with each other;
- and
- the bent portion is bent back near a front end of the engine.
11 more elements
Dependencies are inferred from the claim text.