Importance

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Abstract

For reducing IR detectability of an armored vehicle propelled by an internal combustion engine, the exhaust system includes a muffler connected to the internal combustion engine and an exhaust line connected to the muffler and opening into the atmosphere. The exhaust line branches into a first line and a second line whereby the first line has at least one opening within the bottom of the vehicle and the second line has an opening within one of the outer surfaces of the vehicle other than the bottom of the vehicle. A first flap closes the at least one opening within the bottom of the vehicle. A second flap closes the opening within one of the outer surfaces of the vehicle other than the bottom of the vehicle. In extreme situations, for example, when touching the ground surface, an undesirable increase of the exhaust gas counter pressure and thus an output reduction of the internal combustion engine is prevented by exhausting the gases through the second line, thereby partially loosing the IR detectability protection provided by the system.

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First Claim