Piston for internal combustion engines
AssigneesMahle International GmbH, Mahle Metal Leve S/A
InventorsAntonio Eduardo Meirelles Tomanik, Mauricio Ciminelli Duarte De Souza
Life of this patent
Estimating the term…
Abstract
The present invention relates to a piston ring (10), particularly a compression ring, for an internal combustion engine, comprising a ring-shaped body (11) having a ring joint formed by butt ends (14a, 14b), the ring-shaped body (11) further having a ring contact face (12) along its perimeter, for contacting a cylinder wall in operation. According to the invention, the ring contact face (12) has a barrel-shaped profile, the barrel-shaped profile having in any of its cross-sections an area of maximum curvature, whose radius of curvature increases in the direction of the butt ends (14a, 14b).
Claims5
Piston ring (10), particularly compression ring, for an internal combustion engine, comprising a ring-shaped body (11) having a ring joint (13) formed by butt ends (14a, 14b), said ring-shaped body (11) further having a ring contact face (12) along its perimeter, for contacting a cylinder wall in operation, wherein said ring contact face (12) has a barrel-shaped profile, said barrel-shaped profile having in any of its cross-sections an area of maximum curvature, whose radius of curvature increases in the direction of the butt ends (14a, 14b).
Dependencies are inferred from the claim text.