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. 06, 2012
Filed:
May. 04, 2007
Shinichiro Nogawa, Mishima, JP;
Shinichiro Nogawa, Mishima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An intake control device for an internal combustion engine having a first intake passage (); a second intake passage (); an intake passage length-changing valve (); a partition () that partitions the intake passage into two partitioned intake passages (); and a tumble control valve (). When one of the partitioned intake passages () is closed by the tumble control valve (), air drawn into a combustion chamber through the open partitioned intake passage () forms a tumble flow. The length of the second intake passage () is longer than the length of the first intake passage () from a surge tank () to the connection point (S) between the second intake passage () and the first intake passage (), and the passage cross-sectional area of the second intake passage () is smaller than the passage cross-sectional area of the first intake passage () from the surge tank to the connection point (S).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile