Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuejun Huang0
Date of Patent
September 12, 2006
Patent Application Number
10885810
Date Filed
July 7, 2004
Patent Primary Examiner
Patent abstract
A one-piece steel piston that is made from a piston blank that includes a portion that configured and designed to be displaced to form a cooling gallery and ring belt. The piston blank can be formed by a casting or forging process. The portion that is designed and configured to be displaced is a flange that extends radially at the top of the piston blank. The flange is bent downward so that a peripheral edge of the flange contacts a top portion of the piston skirt. The peripheral edge of the flange and the top portion of the skirt can be welded together or provided with inter-engaging structures.
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