Apparatus and method for producing piston for internal combustion engine
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United States of America Patent
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Jul 8, 2014
Grant Date -
Oct 24, 2013
app pub date -
Mar 11, 2013
filing date -
Apr 18, 2012
priority date (Note) -
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Abstract
An apparatus for producing a piston for an internal combustion engine by casting, the piston having a cooling channel therein, the apparatus including a fixed die with an upwardly opened cavity in which a core serving to form the cooling channel is to be disposed, a moveable die moveably disposed relative to the fixed die in a vertical direction and including a predetermined engaging portion, a guide die including an engaging portion engageable with the fixed die and having a same shape as that of the engaging portion of the moveable die, and a core retaining mechanism disposed in the guide die to retain the core in a predetermined position.
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