Honeycomb structure and exhaust gas purification device
A honeycomb structure, honeycomb technology, applied in exhaust devices, mufflers, coil devices, etc., can solve the problems of low catalytic temperature and insufficient catalytic activity, and achieve the effect of suppressing pressure loss
Pending Publication Date: 2022-04-05
NGK INSULATORS LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0003] However, at present, these harmful components are discharged immediately after the engine is started, when the catalytic temperature is low and the catalytic activity is insufficient.
Therefore, the harmful components in the exhaust gas may be discharged without being purified by the catalyst before reaching the catalyst activation temperature.
Method used
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Embodiment 1
[0117] A columnar cordierite honeycomb unit having a square of 42 mm, a length of 85 mm, a partition wall thickness of 0.1 mm, and a distance between partition walls of about 1 mm was prepared. A metal wire whose material has a balance of Fe-17% by mass Cr and has a wire diameter of 0.45 mm is wound around the outer peripheral surface of the honeycomb unit. Cordierite honeycombs of the same size that were not wound with wires were bonded to each other with a bonding material around the honeycomb unit wound with wires, thereby producing a bonded body. As the bonding material, a bonding material prepared by mixing cordierite powder with an average particle diameter of 15 μm, alumina fibers with an average length of 200 μm, colloidal silica, and carboxymethyl cellulose was used. Using the honeycomb unit wound with the metal wire as the center of the bonded body, the outer periphery was processed into a cylindrical shape with a diameter of 82 mm to obtain a honeycomb structure.
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Abstract
The invention provides a honeycomb structure and an exhaust gas purification device. The honeycomb structure can well suppress pressure loss, and can burn and remove carbon particles and the like by induction heating, or can heat a catalyst carried on the honeycomb structure. A honeycomb structure in which a plurality of columnar honeycomb cells are joined via a joining material layer, the columnar honeycomb cells having an outer peripheral wall and porous partition walls disposed on the inner side of the outer peripheral wall and defining a plurality of cells, the plurality of cells penetrate from one end surface to the other end surface to form a flow path, and a metal member is implanted in the bonding material layer.
Description
technical field [0001] The invention relates to a honeycomb structure body and an exhaust gas purification device. Background technique [0002] Exhaust gas from automobiles generally contains harmful components such as carbon monoxide, hydrocarbons, nitrogen oxides, and particulates such as carbon as a result of incomplete combustion. From the viewpoint of reducing damage to human health, there is an increasing need to reduce harmful gas components and particulates in automobile exhaust. [0003] However, at present, these harmful components are discharged immediately after starting the engine, when the catalytic temperature is low and the catalytic activity is insufficient. Therefore, harmful components in the exhaust gas may be discharged without being purified by the catalyst before reaching the catalyst activation temperature. In order to meet this demand, it is necessary to reduce as much as possible the emission discharged without being purified by the catalyst befo...
Claims
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IPC IPC(8): B01D39/20B01D46/00B01J32/00B01J35/02B01J35/04B01D53/94B01D53/96F01N3/027F01N3/20F01N3/24F01N3/28B01J35/00
CPCF01N3/027F01N3/10F01N3/2013F01N3/2828B01D39/20B01D53/94B01D46/2418F01N2240/16F01N2330/06B01D46/2478B01D46/24494B01D46/2429B01D46/2444B01D46/2448B01D46/2425Y02T10/12H05B6/108H05B2203/024C04B38/0019C04B2111/00793C04B2111/0081C04B35/195C04B26/285C04B26/04C04B28/24C04B2235/5436C04B2235/5427C04B2235/3206C04B2235/349C04B2235/3418C04B2235/3217C04B2235/5264C04B2235/524C04B2235/405C04B2235/402C04B2235/407C04B2235/6021C04B41/009C04B41/87C04B41/5089B01J35/57C04B35/10C04B35/185C04B35/478C04B35/565C04B35/584C04B38/0074C04B14/041C04B14/045C04B14/046C04B14/303C04B14/305C04B14/306C04B14/324C04B14/328C04B14/36C04B14/4625C04B14/4643C04B38/0006C04B41/4535C04B41/5037B01D46/2482B01D46/84B01D46/0027B01D46/2466B01D46/4263B01D2279/30C04B38/0016F01N3/035F01N2330/34F01N2350/02F01N2370/02F01N2510/06H05B6/36B01J35/56
Inventor 市川周一石原拓也宫入由纪夫桝田昌明
Owner NGK INSULATORS LTD