PISTON Russian patent published in 2003 - IPC

Abstract RU 2208692 C2

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to mean speed four stroke internal combustion engines. Piston is provided with trunk with bosses of piston pin, and ring groove for upper oil control ring with drain holes. Cross sections in loaded zones of trunk in cut along ring groove for upper oil control ring from side of inner space of piston are concave, with radius of concavity equal to 0.6 of radius of ring groove inner surface. EFFECT: increased service life of piston. 3 dwg

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RU 2 208 692 C2

Authors

Sidorin I.D.

Dates

2003-07-20Published

2000-06-23Filed