Patent 8967699 was granted and assigned to Oshkosh Corporation on March, 2015 by the United States Patent and Trademark Office.
A structural blast tunnel for a military vehicle includes a frame member that includes an elongated curved portion having a first end, a second end, and a middle portion disposed between the first end and the second end. The structural blast tunnel also includes a first mounting interface coupled to the first end and extending along the longitudinal axis of the frame member. The first mounting interface is configured to receive one of a front sub-frame and a standard frame of a vehicle. The structural blast tunnel finally includes a second mounting interface coupled to the second end and extending along the longitudinal axis of the frame member. The second mounting interface is configured to receive one of a rear sub-frame and a standard frame of a vehicle, and the frame member forms a structurally rigid section configured to direct blast energy outwards towards the first and second end. The structural blast tunnel may also include a secondary shield that increases the blast performance of this system.