| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2550-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2550-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2570-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2610-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1402
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-40 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0871
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N11-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1456
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0842 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M15-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 |
| filingDate |
2011-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2013-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-5257551-B1 |
| titleOfInvention |
Exhaust gas purification device for internal combustion engine |
| abstract |
In the internal combustion engine, an upstream air-fuel ratio sensor (23), a hydrocarbon supply valve (15), an exhaust purification catalyst (13), and a downstream air-fuel ratio sensor (24) are arranged in order from the upstream in the engine exhaust passage. When hydrocarbons are supplied from the hydrocarbon supply valve (15), the air-fuel ratio detected by the downstream air-fuel ratio sensor (24) is detected when no hydrocarbon is supplied from the hydrocarbon supply valve (15). It changes to the rich side with respect to the reference air-fuel ratio. The amount of hydrocarbons supplied from the hydrocarbon supply valve (15) and passing through the exhaust purification catalyst (13) is detected by the air-fuel ratio detected by the upstream air-fuel ratio sensor (23) and the downstream air-fuel ratio sensor (24). It is detected from the air-fuel ratio difference from the reference air-fuel ratio. |
| priorityDate |
2011-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |