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:
Jul. 05, 2022
Filed:
Nov. 28, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Naruto Yamane, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The variable compression ratio internal combustion enginecomprises: a variable compression ratio mechanismable to change a mechanical compression ratio; an exhaust promotion mechanismable to reduce cylinder residual gas after an exhaust stroke of cylinders; and a control deviceconfigured to control the mechanical compression ratio by the variable compression ratio mechanism and control an operation of the exhaust promotion mechanism. The control device is configured to operate the exhaust promotion mechanism in at least a partial time period of a time period from when it is demanded that the mechanical compression ratio be raised to when the mechanical compression ratio finishes being changed.