Piston for a heat engine, heat engine comprising such a piston, and methods

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United States of America Patent

PATENT NO 11098674
SERIAL NO

16477232

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Abstract

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Various implementations include a combustion engine piston, including a skirt in a counter-part and including a first contact area of the piston in the counter-part, a head which extends transverse to a central axis, and a ring carrier which comprises at least two lands and at least two grooves for receiving the rings, including a first land adjoining the head and a second land situated between the first land and the skirt, wherein the lands include at least one contact land having a diameter greater than a minimum diameter of the skirt to form a second contact area of the piston in the counter-part, and wherein at least one contact land comprises a friction-reducing surface coating, formed at least on a radial sector covering an angle of at least 30 degrees, and up to on a single sector covering an angle of 360 degrees.

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Patent Owner(s)

Patent OwnerAddress
H E F42160 ANDREZIEUX-BOUTHEON

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heau, Christophe Saint-Etienne, FR 21 102
Montelimard, Romain Saint-Galmier, FR 3 10
Prost, Fabrice Saint-Etienne, FR 15 7

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