| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1a0eda0cdefb178c870ae3ce4d76b894 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-2066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-204
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-2047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-2073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-6562
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-9422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0807 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-10 |
| filingDate |
2004-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2006-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6f693e4e60da137191e5cd0a8f16beb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2905fd6f1f0dc719c5ca001d3b3eece8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f26996796efa6c55cff652a7ec5c4f7a |
| publicationDate |
2006-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7137249-B2 |
| titleOfInvention |
Thermally stable lean nox trap |
| abstract |
The present invention provides a method of removing harmful gases from an automobile exhaust. The method of the invention comprises contacting a thermally stable NO x trap composition with a first exhaust gas mixture at a temperature of at least 200° C. The first exhaust gas mixture includes exhaust gases from an internal combustion engine operating in a fuel-lean condition. After, NO x has been absorbed onto the NO x absorber material, the NO x trap composition is then contacted with a second exhaust gas composition. In this step, the second exhaust gas mixture includes exhaust gases from an internal combustion engine operating in a fuel-rich condition. The present invention also provides the NO x trap composition used in the method. The NO x trap of the invention includes a precious metal, a NO x absorber material, an oxide that inhibits the decrease in NO x storing ability of the NO x trap composition, and a support material. |
| priorityDate |
2004-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |