Piston ring for internal combustion engine

Description

FIG. 1 is a perspective view of a piston ring for internal combustion engine of the claimed design;

FIG. 2 is a front elevational view of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 3 is a rear elevational view of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 4 is a left side elevational view of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 5 is a top plan view of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 6 is a bottom plan view of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 7 is a cross-sectional view of Section A-A′ of the piston ring for internal combustion engine shown in FIG. 1;

FIG. 8 is an enlarged view of Portion C of the piston ring for internal combustion engine shown in FIG. 7;

FIG. 9 is a cross-sectional view of Section B-B′ of the piston ring for internal combustion engine shown in FIG. 1; and,

FIG. 10 is an enlarged view of Portion D of the piston ring for internal combustion engine shown in FIG. 9.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.

The right side elevational view of the piston ring for internal combustion engine is a mirror image of the left side elevational view of the piston ring for internal combustion engine shown in FIG. 4.

Claims

I claim the ornamental design for a piston ring for internal combustion engine, as shown and described.