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:
Aug. 11, 2020
Filed:
Nov. 10, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A first coolant flow passage () is provided to extend in a longitudinal direction of a cylinder head (). In at least one of cross sections perpendicular to the longitudinal direction, the first coolant flow passage () is located between a flat plane (S) including central axes of a plurality of combustion chambers () and parallel to the longitudinal direction and a central line plane (S) including central lines of a plurality of intake ports (). In at least one of cross sections perpendicular to the longitudinal direction, at least a portion () of a second coolant flow passage is located between a cylinder block mating surface (la) of the cylinder head () and the intake port central line plane (S). A coolant at a temperature lower than that of a coolant flowing in the second coolant flow passage () flows in the first coolant flow passage ().