Internal combustion engine

Description

FIG. 1 is a front view of an internal combustion engine showing our new design;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a top plan view of FIG. 1; and,

FIG. 6 is a bottom plan view of FIG. 1.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article and form no part of the claimed design.

Claims

The ornamental design for an internal combustion engine, as shown and described.