SEAL UNIT OF A PISTON OF AN INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Jan 8, 2015
app pub date -
Dec 5, 2012
filing date -
Dec 30, 2011
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Abstract
The present invention relates to a seal unit (10) suitable to be inserted in the first groove (20′) of a piston (20) of an internal combustion engine. The seal unit (10) according to the invention comprises a first ring-shaped body (10′) which defines a first gap section (12′) and a second ring-shaped body (10″) which defines a second gap section (12″). According to the invention such bodies are overlapping so that the position of said first section (12′) is different from the position of said second section (12″) in relation to a reference axis (101) to which the two bodies (10′,10″) are coaxial.
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