Method for manufacturing a piston

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United States of America Patent

PATENT NO 10837400
APP PUB NO 20180119636A1
SERIAL NO

15796723

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for manufacturing a piston of an internal combustion engine from a piston upper part and a piston lower part may include producing at least the piston lower part as a forged steel part. A partial cross section of a cooling duct may be provided in the piston lower part. A closed supply inlet funnel may be forged within the piston lower part. The closed supply inlet funnel may be bored into the piston lower part from the cooling duct. A borehole may be introduced into the piston lower part obliquely to a piston axis. The piston lower part and the piston upper part may be welded to one another.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBH70376 STUTTGART

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keller, Klaus Lorch, DE 31 202
Scharp, Rainer Vaihingen, DE 82 522

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