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. 18, 2014
Filed:
Nov. 13, 2009
Naoto Hisaminato, Susono, JP;
Manabu Tateno, Shizuoka, JP;
Eiichi Kamiyama, Mishima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder blockmove relatively to a crankcase along an arc-shaped path so as to move away from an engine crankshaft, wherein the arc-shaped path is set so that the mechanical compression ratio of one cylinder group and the mechanical compression ratio of the other cylinder group become equal when the cylinder block is at the lowest position closest to the engine crankshaft and when the cylinder block is at a specific position between the lowest position and a highest position which is furthest from the engine crankshaft.