Patent ID: 6190221
Filing Date: 2001-02-20
Classification: F01M,F02B,F02F

Abstract:
A personal watercraft having a hull defining an engine compartment, a four cycle internal combustion engine in said engine compartment, said engine driving a propulsion device associated with said hull for propelling said personal watercraft through a body of water in which it operates, said engine having a crankcase ventilation system including a crankcase ventilating discharge that is disposed at a location in said engine that is disposed relatively high in said hull during normal watercraft operation, and a crankcase ventilating return for said crankcase ventilating system for discharging the ventilating gases into an induction system of said engine for introduction into a combustion chamber thereof, said crankcase ventilating return being positioned at a relatively low position in said hull so that under normal watercraft operation and regardless of the orientation of said hull on the body of water in which it operates said ventilating return is always below said ventilating discharge of said crankcase ventilating system.