Piston ring for the piston of an internal combustion engine

Details Piston ring for the piston of an internal combustion engine Piston ring for the piston of an internal combustion engine

2011-08-16

2011-08-16

Beach, Thomas A (Department: 3674)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C277S493000

Reexamination Certificate

active

07997584

ABSTRACT:
A piston ring for the piston of an internal combustion engine, comprising, on a lower side of the piston ring, a circular, radially inner bezel, the width thereof reducing, on both sides of the ring stop, up to the side of the piston ring that is opposite the ring stop, in a symmetrical manner in relation to a radially situated axis and runs through the ring stop, and the bezel on the lower side of the piston ring is arranged away from the piston base. A good oil-scraping effect of the piston ring is obtained over the entire periphery of the inner wall of the cylinder.

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