Automotive bumper and muffler combination

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 13/06 (2006.01) F01N 13/08 (2010.01) F01N 13/18 (2010.01) B60R 19/48 (2006.01) F01N 1/08 (2006.01) F01N 1/10 (2006.01) F01N 1/24 (2006.01)

Patent

CA 2205342

A bumper/muffler assembly is provided to simultaneously perform noise attenuation functions and impact protection for an automotive vehicle. The bumper/muffler assembly is formed at least in part from stamped sheets of metal. The sheets include an internal plate-formed with inlet and outlet channels therein. Inlet and outlet tube plates are secured to portions of the internal plate adjacent the inlet and outlet channels such that inlet and outlet tubes are defined. A front external shell is disposed in proximity to the rear end of the vehicle and is configured to be spaced from portions of the internal plate to define a front chamber. A rear external shell also is spaced from the internal plate to define a rear chamber. A plastic material may be nested over the rear external shell for aesthetic attractiveness of the assembly.

Ensemble pare-chocs/silencieux conçu à la fois pour atténuer le bruit d'un véhicule automobile et le protéger contre les impacts. Cet ensemble pare-chocs/silencieux est constitué en partie au moins de tôles embouties. Les tôles comportent une plaque interne munie d'orifices d'entrée et de sortie. Des plaques tubulaires d'entrée et de sortie sont assujetties à des sections de la plaque interne contiguës aux orifices d'entrée et de sortie et définissant des tubes d'entrée et de sortie. Une enveloppe avant extérieure, placée à côté de l'extrémité arrière du véhicule, est conçue pour être placée à une certaine distance de sections de la plaque interne où elle délimite une chambre avant. Une enveloppe extérieure arrière, également placée à une certaine distance de la plaque interne, délimite une chambre arrière. L'enveloppe extérieure arrière peut être emboîtée dans un matériau en plastique pour rendre l'ensemble plus esthétique.

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