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. 03, 2015
Filed:
Oct. 27, 2009
Satoko Tofukuji, Susono, JP;
Atsunori Kumagai, Sunto-gun, JP;
Satoko Tofukuji, Susono, JP;
Atsunori Kumagai, Sunto-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A ringed coolant water passageformed to surround a plurality of cylinders #-#is provided. Two partitioning members having a larger thermal expansion coefficient as compared to that of a cylinder block, and separating the ringed coolant water passageinto first passageand second passageis provided. The first passageexists mainly at one side of a longitudinal bore center plane which extends along the longitudinal direction of the cylinder blockwhile the second passageexists mainly at the other side. An inlet which communicates with the first passage and an outlet which communicates with the second passage are provided. A cylinder head including a coolant water passage which opens to both of the first passageand the second passageis attached to the cylinder block. The cylinder blockand the partitioning membersare formed so that stress acting between both of them in a condition where the internal combustion engine is warmed up does not reach to a breaking stress of the partitioning members