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:
Oct. 21, 2014
Filed:
Dec. 02, 2010
Harald Boekle, Moeglingen, DE;
Gottfried Schnaitmann, Backnang, DE;
Rainer Fischer, Stuttgart, DE;
Ralf Braig, Schorndorf, DE;
Helmut Mueller, Stuttgart, DE;
Harald Boekle, Moeglingen, DE;
Gottfried Schnaitmann, Backnang, DE;
Rainer Fischer, Stuttgart, DE;
Ralf Braig, Schorndorf, DE;
Helmut Mueller, Stuttgart, DE;
MAHLE International GmbH, Stuttgart, DE;
Abstract
Pin bosses of a piston for an internal combustion engine each have a pin bore for supporting a piston pin. In order to reduce the tangential stresses in the zenith area of the pin bores, and thus to extend the service life of the piston, the inner areas of the pin bores as viewed in the direction of the bore axis have areas on both sides of the zenith that have a greater distance from the bore axis than the zenith of the pin bore, and the outer areas of the pin bores, as viewed in the direction of the bore axis, are transversely oval relative to the piston axis.