The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2004
Filed:
Jul. 11, 2002
Yoshimoto Matsuda, Kobe, JP;
Masaaki Miyoshi, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Abstract
Disclosed is a personal watercraft having a simple and durable exhaust system capable of reducing an exhaust noise without degrading a function of a water jet pump. The personal watercraft comprises 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 ambient side at a rear side of the pump room; an exhaust chamber defined by the double walls formed by double-walling an outer peripheral portion of at least part of the pump casing of the water jet pump; an exhaust inlet provided in an outer wall of the double walls forming the exhaust chamber and connected to a downstream end of an exhaust pipe extending from the engine; 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.