Exhaust gas filter and method of making the same

Details Exhaust gas filter and method of making the same Exhaust gas filter and method of making the same

C - Chemistry, Metallurgy

04

B

183/110, 172/8

C04B 38/00 (2006.01) B01D 39/20 (2006.01) B01D 46/12 (2006.01) F01N 3/022 (2006.01) F01N 3/021 (2006.01)

Patent

CA 1186641

-1- Abstract: The invention provides an exhaust gas filter of honeycomb structure which is formed by alternate layered stacking and bonding of heat-resistive and porous ceramic fiber composite sheets having a plane shape and a corru- gated shape, wherein end parts of the corrugated sheets are pressed down or up to make blocade walls. The resulting parallel channels, which are formed by the alternate layered stackings of the corrugated sheet and the plane sheet, are closed at alternate ends to form gas-inflow channels and gas-withdraw channels. The resulting filter element has good resistance against mechanical and heat shocks and has a small pressure drop and good particulates collection efficiency.

421705

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