| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_41ac7ff6ab574ca3737b892da2ebfe6f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-0411
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02N2200-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-202
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1614
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-204
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2610-146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-1025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-1023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-1021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2251-208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2250-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2240-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0821
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0871
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-9422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0275 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-20 |
| filingDate |
2010-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1812dc154ac3561983be40a3324f85d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5002af79c708c7d8c7d766e293d0e6b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f75566c7bf0128bb3e1625a59d1c8a2 |
| publicationDate |
2015-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102834597-B |
| titleOfInvention |
Exhaust purification device for an internal combustion engine |
| abstract |
Disclosed is an exhaust purification device whereby a hydrocarbon supply valve (15) and an exhaust purification catalyst (13) are disposed in an engine exhaust passage. When the engine is running, either a first NOx purification method or a second NOx purification method is selected, depending on the degree of sulfur poisoning in the exhaust purification catalyst (13). The first NOx purification method purifies NOx contained in the exhaust gas by injecting a hydrocarbon from the hydrocarbon supply valve (15) at predetermined supply intervals, while the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) is kept lean. The second NOx purification method purifies the NOx by switching the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) from lean to rich, using longer intervals than the abovementioned predetermined supply intervals. |
| priorityDate |
2010-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |