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. 04, 2020
Filed:
Sep. 14, 2012
Ulrich Bischofberger, Esslingen, DE;
Ulrich Bischofberger, Esslingen, DE;
MAHLE INTERNATIONAL GMBH, Stuttgart, DE;
Abstract
A piston for an internal combustion engine has a piston head and a piston skirt. The piston head has a circumferential ring part and a circumferential cooling channel in the region of the ring part. The piston skirt has piston bosses with boss bores and which are arranged on the lower face of the piston head via boss connections. The piston bosses are connected to one another via running surfaces. At least one bore is provided which is closed towards the outside and which is arranged between a running surface and a boss bore. The at least one bore opens into the cooling channel, and the cooling channel and the at least one bore contain a coolant in the form of a low-melting metal or a low-melting metal alloy.