Piston for an internal combustion engine
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United States of America Patent
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Jan 16, 2018
Grant Date -
Apr 28, 2016
app pub date -
May 28, 2014
filing date -
May 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, an encircling fire land, an encircling ring belt having a plurality of ring grooves and an encircling cooling duct disposed radially inwards from the ring belt. The cooling duct may be open in an axial direction away from the fire land and may be at least partially closed via a closure element. The cooling duct may have a cooling duct base and a cooling duct ceiling. The closure element may be arranged on the piston head to define the cooling duct base in a position above a lowermost ring groove of the plurality of ring grooves.
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