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. 02, 2011
Filed:
Jun. 08, 2007
Matthias Seifried, Herrenzimmern, DE;
Matthias Seifried, Herrenzimmern, DE;
MAHLE International GmbH, Stuttgart, DE;
Abstract
The present invention relates to a method for producing a single part piston () for an internal combustion engine from a piston blank (), with a cooling channel () that is open in the downward direction running circularly inside a piston head (), and an annular recess () built between the piston head () and a piston shaft (), wherein the piston head () and the piston shaft () are connected to each other by means of a piston hub (), and wherein the annular recess () and the cooling channel () are machined into the piston blank () by means of a cutting operation. According to the invention, it is provided that, for the cutting operation of the cooling channel (), a tool () is moved into the area of the cooling channel () in an arc-shaped pivoting movement (A) through the recess (), and that the cooling channel () is cut.