Laser welded piston assembly

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United States of America Patent

PATENT NO 9593641
SERIAL NO

13623632

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Abstract

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An exemplary piston may include a piston body having radially inner and outer body mating surfaces. The piston may further include a cooling gallery ring cooperating with the piston body to form a continuous upper combustion bowl surface and a cooling gallery. The cooling gallery ring may have radially inner and outer ring mating surfaces abutted along their corresponding radially inner and outer body mating surfaces, such that the cooling gallery is substantially enclosed. The piston body and cooling gallery ring may be joined together along the radially inner and radially outer interface regions to form a generally one-piece piston assembly. The radially outer interface region may be elongated in a direction parallel to the piston axis, e.g., facilitating a laser welding joining process.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBHGERMANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gabriel, Dieter Highland, US 13 144
Rein, Wolfgang Milford, US 11 133
Ulrich, Michael Stuttgart, DE 16 106
Walker, Steve Talbott, US 12 138
Weisse, Volker Stuttgart, DE 12 96

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