Filter device for reducing automobile exhaust fume

Details Filter device for reducing automobile exhaust fume Filter device for reducing automobile exhaust fume

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/02 (2006.01) B01J 35/04 (2006.01)

Patent

CA 2731202

Disclosed herein is a filter device for reducing automobile exhaust fume. The filter device includes a case, a front flange mounted inside the case, a rear flange mounted inside the case, and a filter member mounted between the front and rear flanged. The case includes an inlet port, a porous tube and an exhaust port. The filter member includes a laminated-type or rolled--up type metallic foam filter mounted between the front and rear flanges, and a jacket wrapped around the metallic foam filter. The exhaust gas that flows inside the porous tube passes through the metallic foam filter. The jacket is formed in a network form to maintain the shape of the metallic foam filter and provide durability thereto. The jacket is formed with a rectangular vent hole. The jacket holds the metallic foam filter such that the shape, construction and position of the metallic foam filter can be maintained.

L'invention porte sur un dispositif de filtre pour réduire les gaz d'échappement d'automobile. Le dispositif de filtre comprend un boîtier, une bride avant montée à l'intérieur du boîtier, une bride arrière montée à l'intérieur du boîtier, et un élément filtre monté entre les brides avant et arrière. Le boîtier comprend un orifice d'entrée, un tube poreux et un orifice d'échappement. L'élément filtre comprend un filtre de mousse métallique de type stratifié ou de type enroulé, monté entre les brides avant et arrière, et une chemise entourant le filtre de mousse métallique. Le gaz d'échappement qui s'écoule à l'intérieur du tube poreux traverse le filtre de mousse métallique. La chemise est formée sous la forme d'un réseau pour maintenir la forme du filtre de mousse métallique et garantir une durabilité de celui-ci. La chemise comporte un évent rectangulaire. La chemise maintient le filtre de mousse métallique de telle sorte que la forme, la structure et la position du filtre de mousse métallique peuvent être conservées.

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