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:
Jul. 16, 2024
Filed:
Dec. 07, 2020
Federal-mogul Nurnberg Gmbh, Nuremberg, DE;
Margrit Dannenfeldt, Nuremberg, DE;
Carolin Kleinlein, Nuremberg, DE;
Federal-Mogul Nurnberg GmbH, Nuremberg, DE;
Abstract
The present invention relates to pistons () for use in internal combustion engines, having: a piston crown () which is adjoined by a piston skirt (), wherein the piston skirt () has surfaces () which abut the cylinder wall during use of the piston, wherein the surfaces () have one or more friction-reducing coatings () and wherein depressions () are provided in the coating, which are arranged such that the spacing S between each two adjacent depressions () along the axial direction (A) of the piston and the width L of the depressions () along the axial direction (A) of the piston satisfy the formula S>2L.