EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREFOR,申请号JP20020157666-传众专利搜索

EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREFOR

申请公布号：JP2003343237(A)

申请号：JP20020157666

申请日期：2002.05.30

申请公布日期：2003.12.03

申请人：

DENSO CORP

发明人：SAITO MAKOTO;NOMURA YURIO

分类号：F01N3/02;B01D46/42;(IPC1-7):F01N3/02

主分类号：F01N3/02

摘要：PROBLEM TO BE SOLVED: To realize an exhaust emission control device which efficiently collects and removes PM, using a plasma generating device with a simple structure. SOLUTION: The plasma generating device for generating a plasma by applying alternating voltage between electrodes from a power source is arranged in an exhaust pipe of an internal combustion engine. A cylindrical trap 23 for trapping a particulate in the exhaust emission introduced and forming a plasma generating space is arranged between a central electrode 21 and a circumferential electrode 22 arranged eccentrically. The trap 23 is integrated by fusing many dielectric ceramic particles 3 with each other to form a non- linear exhaust emission passage with a clearance 4 between dielectric ceramic particles 3, and formed of a dielectric porous structural body having many very small electrode structures 5 on a neighboring grain boundary of the dielectric ceramic particles 3. Moreover, the trap is great in collecting area and excellent in a plasma generating efficiency. COPYRIGHT: (C)2004,JPO