Title:
EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2017/150582
Kind Code:
A1
Abstract:
An exhaust gas purification device 100 for an internal combustion engine 1 according to the present invention is provided with a plurality of catalysts 10 which are provided in series in an exhaust pipe 2. Phosphorus-containing engine oil is circulated in the internal combustion engine. The catalyst 10a positioned furthest upstream among the plurality of catalysts is provided with: an upstream section 53 which extends a prescribed distance L1 downstream from an upstream end 51; and a downstream section 54 positioned further downstream than the upstream section. The upstream section and the downstream section include a catalytic metal. The upstream section supports a smaller amount of the catalytic metal per unit length than the downstream section.
Inventors:
KAWASHIMA YUKIHIRO (JP)
MIZUKAMI NAO (JP)
MIZUKAMI NAO (JP)
Application Number:
PCT/JP2017/008009
Publication Date:
September 08, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/28; B01D53/94; F01N3/08; F01N3/10; F01N3/20
Foreign References:
| JP2009228575A | 2009-10-08 | |||
| JP2015188881A | 2015-11-02 | |||
| JPH09271674A | 1997-10-21 | |||
| JP2015183587A | 2015-10-22 | |||
| JP2011202512A | 2011-10-13 |
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (JP)
Download PDF: