Patent ID: 6705908
Filing Date: 2004-03-16
Classification: B63B,B63H

Abstract:
A personal watercraft comprising:a water jet pump including an outlet port, the water jet pump pressurizing and accelerating water taken in from outside of the watercraft and ejecting the water from the outlet port to propel the watercraft as a reaction of the ejecting water; a pump room that contains the water jet pump and communicates with an ambient side at a rear side of the pump room; an exhaust chamber defined by double walls formed by double-walling an outer peripheral portion of at least part of a pump casing of the water jet pump; an exhaust inlet provided in an outer wall of the double walls defining the exhaust chamber and connected to a downstream end of an exhaust pipe extending from an engine in an exhaust gas flow path; and an exhaust outlet provided in an outer wall of a portion of the double walls which is exposed in the pump room and opened in the pump room.