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:
Dec. 27, 2011
Filed:
Oct. 19, 2006
Robert Pöschl, Graz-Andritz, AT;
Alexander Maier, Hetzendorf, AT;
Robert Pöschl, Graz-Andritz, AT;
Alexander Maier, Hetzendorf, AT;
AVL List GmbH, Graz, AT;
Abstract
The invention relates to a cylinder head () for a liquid-cooled internal combustion engine with several cylinders, comprising at least one intake port () and at least two exhaust ports () per cylinder (), at least one first cooling chamber () adjacent to a fire deck and at least one second cooling chamber () adjacent to the first cooling chamber (), with the second cooling chamber () extending over several cylinders. In order to improve cooling in the areas subjected to great thermal stress it is provided that at least one first cooling chamber () is provided per cylinder and the first cooling chambers () of two adjacent cylinders are separated from one another, with each first cooling chamber () comprising at least one first opening () and at least one transfer opening () to the second cooling chamber (), and the first cooling chamber () is flowed through between the first opening () and the transfer opening () substantially in the longitudinal direction of the cylinder head ().