Patent Number: 6,308,799

Title: Integrated muffler-bumper system

Abstract: A space efficient, structurally rigid, integrated muffler and bumper assembly is provided. The muffler and bumper assembly comprises an extruded skeleton, an energy absorbing bumper, and a bumper fascia. The extruded skeleton is formed such that internal cavities or passage flow chambers exist. In turn, the walls of the flow chambers maintain a plurality of holes, allowing for passage of exhaust gases between chambers. The extruded skeleton also has an inlet and outlet for exhaust gas flow. Arms having tabs on the ends thereof extend from the top and bottom of the extruded skeleton such that the energy absorbing bumper, which maintains recesses in the top and bottom portions, snap-fits with the extruded skeleton. The extruded skeleton/bumper assembly is welded or otherwise mechanically fastened to the vehicle frame rails. The bumper fascia is introduced over the extruded skeleton/bumper assembly generally masking the assembly with the overall vehicle design. Both the energy absorbing bumper and the bumper fascia have bores formed therein to receive the exhaust outlet of the extruded skeleton.

Inventors: Konstantakopoulos; George A (Madison Heights, MI)

Assignee: DaimlerChrysler Corporation

International Classification: B60R 19/02 (20060101); B60R 19/48 (20060101); B60R 19/18 (20060101); F01M 001/00 ()

Expiration Date: 10/30/2018