公开(公告)号：WO2004094793A1

公开(公告)日：2004-11-04

申请号：PCT/CN2004/000380

申请日：2004-04-21

Applicant: BYD COMPANY LIMITED

Inventor： LI, Chunbo ,  CHENG, Hongwei ,  WANG, Chuanfu ,  DONG, Junqing

IPC: F01N1/24

CPC classification number: B01D53/945 ,  B01D53/9454 ,  B01J23/63 ,  B01J35/04 ,  F01N1/24 ,  F01N3/0892 ,  F01N3/2803 ,  F01N3/2807 ,  F01N3/281 ,  F01N3/2853 ,  F01N3/2885 ,  F01N13/0097 ,  F01N2230/04 ,  F01N2330/02 ,  F01N2330/48 ,  F01N2370/02 ,  F01N2510/06 ,  Y02T10/22

Abstract: This invention discloses of a muffler and catalytic converter device, and in addition, a muffler, and a catalytic converter, wherein each type of device uses a porous metal that may function as the sound absorption material for the muffler part of the device, and the substrate for the catalyst coating for the catalytic converter part of the device. In order to be effectiveness as a substrate and to have good sound absorption, the porous metal has a pore density of between 80% and 98% and a pore diameter of between 50μm and 1200μm. The porous metal provides structural strength, and is resistant to corrosion, heat, and impact from exhaust flow. It is also easy and cheap to fabricate. For the muffler and catalytic converter device, by combining the customary two devices into one, the cost of production as well as the cost of installation for the device is lowered. Therefore, the muffler and catalytic converter device, muffler, and catalytic converter each having the porous metal that serves functions including good sound absorption characteristics over a wide spectrum of frequencies, that is efficient in the removal of environmental contaminants from the exhaust, and that is durable, and easy and cheap to manufacture for mass production.

Abstract translation: 本发明公开了一种消音器和催化转化器装置，另外还包括消音器和催化转化器，其中每种类型的装置使用可用作装置的消音器部分的吸声材料的多孔金属， 用于催化转化器部件的催化剂涂层的底物。 为了有效地作为基材并且具有良好的吸声性，多孔金属的孔密度为80％至98％，孔径为50m和1200mum。 多孔金属提供结构强度，并且耐受来自排气流的腐蚀，热和冲击。 制造也容易和便宜。 对于消音器和催化转化器装置，通过将常规的两个装置组合成一体，降低了生产成本以及装置的安装成本。 因此，消声器和催化转化器装置，消音器和催化转化器各自具有多孔金属功能，其功能包括在宽频谱范围内具有良好的吸声特性，这对从废气中去除环境污染物是有效的，也就是说 耐用，便于制造批量生产。