Title:
EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE, AND EXHAUST GAS PURIFICATION METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2016/132875
Kind Code:
A1
Abstract:
In this exhaust gas purification system 20 for an internal combustion engine, a lean NOx trap catalyst device 24 is provided to an exhaust passage 15 of an engine 10. A control device 40 for controlling the exhaust gas purification system 20 is configured such that a desulfurization temperature Tt, which serves as a target temperature for when performing desulfurization control on the lean NOx trap catalyst device 24, is set so as to correspond to the sulfur storage amount Sa stored in the lean NOx trap catalyst device 24. As a result, an exhaust gas purification system for an internal combustion engine, an internal combustion engine, and an exhaust gas purification method for an internal combustion engine are provided, with which, when desulfurization control is performed on the lean NOx trap catalyst device provided to the exhaust gas purification system for an internal combustion engine, desulfurization treatment is reliably performed while heat deterioration and erosion of the lean NOx trap catalyst device are inhibited, and desulfurization control exhibiting excellent robustness is performed, and thus a high NOx purification rate is maintained.
Inventors:
NAGAOKA DAIJI (JP)
Application Number:
PCT/JP2016/052908
Publication Date:
August 25, 2016
Filing Date:
February 01, 2016
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/20; B01D53/94; B01D53/96; F01N3/08
Foreign References:
| JP2013100725A | 2013-05-23 | |||
| JP2003097332A | 2003-04-03 | |||
| JP2010106813A | 2010-05-13 |
Other References:
See also references of EP 3260676A4
Attorney, Agent or Firm:
SEIRYU Paent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)
Clear stream international patent business corporation (JP)
Download PDF: