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:
Sep. 04, 2001
Filed:
Aug. 02, 2000
Masaki Tsunoda, Wako, JP;
Shigekazu Sakata, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A vertical internal combustion engine for an outboard motor having a crankshaft directed substantially in a vertical direction contains a flywheel provided integrally on a lower end of the crankshaft and an oil pan provided under the flywheel. A lubricating oil pump driven by the crankshaft to rotate is disposed under the flywheel, and in the internal combustion engine, the center of gravity is positioned low so that the flywheel can be supported stably and the dischagrability of the lubricating oil pump will be high. Moreover, a pair of balancer shafts connected to the crankshaft to be driven thereby is disposed in parallel with the crankshaft on both sides of the engine cylinders, and balancer shaft lubricating oil passages are provided for lubricating balancer shaft pivot portions.