Internal combustion engine

Description

FIG. 1 is a front elevational view of an internal combustion engine showing our 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 right perspective view thereof; and,

FIG. 8 is a rear right perspective view thereof.

The broken lines shown in FIGS. 1-8 are for purposes of illustrating portions of the internal combustion engine that form no part of the claimed design.

Claims

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