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:
Jun. 20, 2017
Filed:
Mar. 02, 2016
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;
Yuta Miyagi, Shizuoka, JP;
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Shizuoka, JP;
Abstract
An outboard motor includes a crankshaft, a first bank including a plurality of first cylinders, a second bank including a plurality of second cylinders, a plurality of first injectors, a plurality of first spark plugs, a plurality of second injectors, and a plurality of second spark plugs. Each of the first and second cylinders includes a combustion chamber, an intake port, and an exhaust port. The first injectors and the first spark plugs are alternately disposed in a vertical direction. The second injectors and the second spark plugs are alternately disposed in the vertical direction in a reverse order to that of the first injectors and the first spark plugs. When the crankshaft is seen from a horizontal direction, the first cylinders and the second cylinders are disposed symmetrically about a point of symmetry arranged on an axis of the crankshaft.