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:
Nov. 29, 2011
Filed:
Mar. 23, 2007
Wolfgang Issler, Schwaikheim, DE;
Timo Estrum, Stuttgart, DE;
Wolfgang Issler, Schwaikheim, DE;
Timo Estrum, Stuttgart, DE;
MAHLE International GmbH, Stuttgart, DE;
Abstract
The invention relates to a piston () for an internal combustion engine, comprising a piston head () with at least one piston crown () which is exposed to at least one jet of combustion gases, and a piston shaft (), the piston head () and the piston shaft () being configured as interconnected individual components including a peripheral outer cooling channel (). The invention is characterized in that an annular partition wall () is provided in the cooling channel () in parallel to the piston crown () and has one or more nozzle-type openings () that are arranged in such a manner that their respective outlet jet is directed against the underside () of the piston crown ().