LIGHTWEIGHT POWER CELL UNIT
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United States of America Patent
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app pub date -
Apr 1, 2016
filing date -
Apr 1, 2016
priority date (Note) -
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Abstract
A power cell unit may include a piston assembly having a piston crown and a piston skirt. The piston crown may include a ring belt portion extending circumferentially about a combustion bowl and at least one boss portion extending downward from the combustion bowl. The power cell unit may also include a connecting rod having an elongated portion and a funnel portion, and at least one piston pin configured to connect the connecting rod with the piston assembly. A bottom surface of the at least one boss portion may engage with a corresponding surface of the funnel portion such that a gas load is substantially transferred directly from the piston crown to the connecting rod during downward motion of the piston assembly, and such that only inertial loading from the piston crown and/or piston skirt is transferred to the piston pin during upward motion of the piston assembly.
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