Piston for an internal combustion engine

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United States of America Patent

PATENT NO 9765728
APP PUB NO 20150247475A1
SERIAL NO

14424706

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Importance

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Abstract

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A piston for an internal combustion engine includes a piston head and a piston skirt, wherein the piston head has a piston base, a circumferential ring part and, in the region of the ring part, a circumferential closed cooling channel or sealed cavity. An inner side of the piston has two lower surfaces which transform continuously in the region of the piston central axis (M) to form an arched surface. The piston skirt has piston hubs provided with hub bores which are interconnected by means of running surfaces which have inner surfaces facing the inside of the piston. Starting from the free ends of the piston skirt, inside the piston on the pressure side (DS) and/or counter pressure side (GDS), an inner surface of a running surface continuously transforms into a guiding surface for a coolant which transforms continuously on the side thereof into a lower surface.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBHPRAGSTR 26-46 70376 STUTTGART 70376

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bischofberger, Ulrich Esslingen, DE 35 181
Boczek, Sascha-Oliver Dielheim, DE 21 94

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