Title:
【発明の名称】自動車排ガス浄化用触媒コンバーター
Document Type and Number:
Japanese Patent JP3091201
Kind Code:
B2
Abstract:
PURPOSE:To heat exhaust gas at a low temperature and prevent metal corrosion and catalyst deterioration by arranging a honeycomb heater provided with a plurality of electrodes on its honeycomb structure on a downstream side of a main monorice catalyst located on an upstream side of an exhaust gas flow passage. CONSTITUTION:A plurality of slits 11 are formed as resistance adjusting mechanisms on a honeycomb structure 10 having a number of through-holes 12, while two electrodes 13 are provided on the outer wall thereof, to form a honeycomb heater. The honeycomb heater or a heater catalyst 14 is, for example, inserted between a main monorice catalyst 15 and an igniting catalyst 16. Since the honeycomb heater is arranged on the downstream side of the main monorice catalyst 15, the low temperature exhaust gas at the starting is heated. Also, since the main monorice catalyst 15 is arranged on the upstream side of the exhaust gas, even after the temperature of the exhaust gas is increased, it is possible to prevent metal corrosion of the honeycomb heater and deterioration of the catalyst held in the honeycomb heater.
Inventors:
Setsu Harada
Fumio Abe
Hiroshige Mizuno
Fumio Abe
Hiroshige Mizuno
Application Number:
JP17293090A
Publication Date:
September 25, 2000
Filing Date:
June 29, 1990
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
F01N3/20; F01N3/24; (IPC1-7): F01N3/24; F01N3/20
Domestic Patent References:
| JP1240718A | ||||
| JP6367609U |
Attorney, Agent or Firm:
Ippei Watanabe