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:
Oct. 08, 2013
Filed:
Nov. 26, 2009
Yoshihiro Okada, Susono, JP;
Yoshihiro Okada, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Abstract
An object of the present invention is to ensure appropriate cooling amounts for two exhaust ports, respectively, in an internal combustion engine in which an exhaust port that communicates with an inlet of a turbine of a turbocharger and an exhaust port that does not communicate with the inlet of the turbine are formed in a cylinder head. A cooling apparatus for an internal combustion engine of the present invention has a first exhaust port and a second exhaust port formed in a cylinder head of the internal combustion engine. The first exhaust port communicates with an inlet of a turbine of the turbocharger. The second exhaust port does not communicate with the inlet of the turbine. Each cylinder of the internal combustion engine includes a first exhaust valve that communicates with the first exhaust port and a second exhaust valve that communicates with the second exhaust port. A first cooling water passage through which cooling water that cools the first exhaust port passes and a second cooling water passage through which cooling water that cools the second exhaust port passes are formed in the cylinder head.