Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Fanghui Shi0
John B. Fisher0
Kenneth E. Schroeder0
Date of Patent
November 10, 2009
0Patent Application Number
116144800
Date Filed
December 21, 2006
0Patent Citations Received
0
Patent Primary Examiner
Patent abstract
Disclosed is a piston having a top chamfer functioning as an oil reservoir, the top chamfer designed to reduce piston noise and friction. The top chamfer partially defines a tapered volume or cavity configured to enhance oil flow to the middle portions of the piston skirt so as to increase lubrication during piston up stroke and thereby reduce piston noise and friction.
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