Title:
EXHAUST GAS PURIFIER FOR INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO/2002/068807
Kind Code:
A1
Abstract:
An exhaust gas purifier for internal combustion engines comprises an exhaust gas purifying means (40) capable of reducing the amount of harmful substance in exhaust gases under predetermined exhaust gas pressure conditions, and an exhaust gas sensor (22) for detecting the concentrations of particular exhaust gas components (H¿2?, O¿2?) in exhaust gases, the means (40) and sensor (22) being disposed in the exhaust gas passageway (20) of an internal combustion engine (1), wherein a performance lowering decision means makes a decision on the performance lowering of the exhaust gas purifying means (40) by detecting the failure of the predetermined exhaust gas pressure conditions to be fulfilled on the basis of the output from the exhaust gas sensor.
Inventors:
TAMURA YASUKI (JP)
OKADA KOJIRO (JP)
OHASHI TOMOHIRO (JP)
YAMADA NAOTO (JP)
KOGA KAZUO (JP)
OKADA KOJIRO (JP)
OHASHI TOMOHIRO (JP)
YAMADA NAOTO (JP)
KOGA KAZUO (JP)
Application Number:
PCT/JP2002/001730
Publication Date:
September 06, 2002
Filing Date:
February 26, 2002
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP (JP)
TAMURA YASUKI (JP)
OKADA KOJIRO (JP)
OHASHI TOMOHIRO (JP)
YAMADA NAOTO (JP)
KOGA KAZUO (JP)
TAMURA YASUKI (JP)
OKADA KOJIRO (JP)
OHASHI TOMOHIRO (JP)
YAMADA NAOTO (JP)
KOGA KAZUO (JP)
International Classes:
F01N3/08; F01N11/00; F02D41/14; F01N13/02; F02D9/04; F02M25/07; (IPC1-7): F02D45/00; F01N3/20; F02D13/02; F02D41/04
Foreign References:
| EP0976915A2 | 2000-02-02 | |||
| JPH09125940A | 1997-05-13 | |||
| JPH03117611A | 1991-05-20 |
Other References:
See also references of EP 1365137A4
Attorney, Agent or Firm:
Nagato, Kanji (Shinbashi 5-chome Minato-ku, Tokyo, JP)
Download PDF: