| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2370-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2610-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2200-0808
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2200-0806
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2430-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-0422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1602
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-0412
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1614 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1454
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-2066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0871
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1475 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 |
| filingDate |
2014-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2016-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2016532039-A |
| titleOfInvention |
Exhaust gas purification device for internal combustion engine |
| abstract |
A target rich air-fuel ratio for releasing NO X from an exhaust purification catalyst when switching from a second NO X purification method to a first NO X purification method is reduced. In an internal combustion engine, a hydrocarbon supply valve (15) and an exhaust purification catalyst (13) are arranged in an engine exhaust passage. The first NO x that injects hydrocarbons from the hydrocarbon feed valve (15) with a period within a predetermined range and reduces NO x contained in the exhaust gas by the reducing intermediate produced thereby. A purification method and a second NO X purification method in which the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) with a cycle longer than the predetermined range is set to the first target rich air-fuel ratio. Used. When switched from the second NO X removal method to the first NO X removal method, the air-fuel ratio is smaller the second target than the first target rich air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) A rich air-fuel ratio is set. [Selection] Figure 17 |
| priorityDate |
2013-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |