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. 02, 2014
Filed:
Mar. 09, 2010
Peter Godel, Freienried, DE;
Marc-manuel Matz, Friedberg, DE;
Wolfram Cromme, Nuremberg, DE;
Klaus Lades, Nuremberg, DE;
Frank Dornenburg, Nuremberg, DE;
Peter Godel, Freienried, DE;
Marc-Manuel Matz, Friedberg, DE;
Wolfram Cromme, Nuremberg, DE;
Klaus Lades, Nuremberg, DE;
Frank Dornenburg, Nuremberg, DE;
Federal-Mogul Nurnberg GmbH, Nuremberg, DE;
Abstract
The invention relates to a method for producing a piston for an internal combustion engine, wherein a section which in the finished piston has a cooling duct () and a piston ring groove is recessed at first, the later cooling duct is then covered, and finally material for accommodating the piston ring is applied, and which is characterized in that the later cooling duct is covered by a wire material which is provided in a length, greater than necessary for one single piston. A device for producing a piston for an internal combustion engine with an at first recessed section that in the finished piston has a cooling duct () and a piston ring groove, has a device for attaching a cover on the cooling duct and a device for providing wire material having a length greater than necessary for one single piston. A piston for an internal combustion engine has a cooling duct () and a reinforcement material for accommodating a piston ring as well as a cover material between the cooling duct () and the reinforcement material, wherein the cover material is made of wire material continuously unwinding from a roll.