Watercraft having a four stroke engine with a supercharger

Details Watercraft having a four stroke engine with a supercharger Watercraft having a four stroke engine with a supercharger

2006-07-10

2009-06-30

Kamen, Noah (Department: 3741)

Internal-combustion engines

Charge forming device

Supercharger

C123S184310, C440S08800J

Reexamination Certificate

active

07552721

ABSTRACT:
A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder head and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.

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