Internal combustion engine

Description

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

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front and right side perspective view thereof; and,

FIG. 8 is a rear and left side perspective view thereof.

The portions of the article shown in broken lines form no part of the claimed design.

Claims

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