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US 7,070,467 B2Granted
Integrated engine-jet pump drive unit for marine application
AssigneeBrp-Rotax GmbH & Co. KG
InventorsNorbert Korenjak, Heinz Kusel
Life of this patent
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Abstract
A watercraft includes a shell, a ride plate, an internal combustion engine, and a jet pump. The shell defines a tunnel that extends forwardly from the transom and is defined laterally by the shell. The tunnel is open at its bottom The ride plate mounts to the shell under the tunnel. The engine and jet pump are supported by the ride plate and disposed in the tunnel. The engine drives the jet pump. The engine is cooled by water that continuously flows past the ride plate. The engine, jet pump, and ride plate are installed from below or the behind the shell.
Claims22
A personal watercraft comprising:
- a hull, the hull comprising a transom;
- a deck disposed on the hull;
- a straddle seat disposed on the deck;
- handlebars mounted on the deck forward of the seat for steering the personal watercraft;
- a first compartment defined between the hull and the deck;
- a tunnel extending forwardly from the transom, the tunnel being defined laterally by the hull, the tunnel having an open bottom,
- a ride plate mounted to the hull at the bottom of the tunnel;
- the tunnel and the ride plate defining a second compartment separate from the first compartment;
- an internal combustion engine supported by the ride plate and disposed in the second compartment and below the seat;
- a jet pump operatively connected to the internal combustion engine, supported by the ride plate, and disposed in the second compartment.
7 more elements
Dependencies are inferred from the claim text.