Piston with thermally insulated crown
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United States of America Patent
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Jun 27, 2017
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N/A
app pub date -
Sep 2, 2014
filing date -
Sep 2, 2014
priority date (Note) -
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Abstract
Exemplary pistons and methods are disclosed. A piston may include a piston body defining a piston axis, the body including radially inner and outer body mating surfaces, and an annular ring cooperating with the piston body to form a continuous upper combustion bowl surface having a radially inner portion defined by the piston body and a radially outer portion defined by the annular ring. The annular ring includes a radially inner ring mating surface and a radially outer ring mating surface, wherein at least one of the annular ring mating surfaces is joined with the corresponding piston body mating surface. The annular ring and piston body cooperate to define an annular gap therebetween configured to thermally insulate the piston body from the annular ring.
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