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:
Apr. 29, 2003
Filed:
Feb. 17, 2000
Applicant:
Inventor:
Masayoshi Nanami, Shizuoka, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 2/110 ;
U.S. Cl.
CPC ...
B63H 2/110 ;
Abstract
An engine for a watercraft has a coupling plate interposed between a cylinder block and an exhaust manifold. The coupling plate comprises exhaust passages that complement the shapes of cylinder exhaust discharge ports and the exhaust manifold inlet ports. The coupling plate also includes a water jacket for use with a water cooling system. The cooling system can receive coolant from a pressure chamber within a jet pump unit of the watercraft. The cooling system also can include a lubricant cooler that receives coolant from an engine cooling jacket, an exhaust system cooling jacket or another cooling jacket.