http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008223670-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38ec091c31fd66e98fbd407a05d1c4ff |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 |
| filingDate | 2007-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2ab9db58dcbd7dd47a79a201a0290a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce31cbf769ff68eab2264197a2070ad1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdbdfef1230494df64ecf17216c1cbec |
| publicationDate | 2008-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2008223670-A |
| titleOfInvention | Engine exhaust purification system |
| abstract | In an exhaust purification apparatus for reducing and purifying NOx in exhaust gas, the utilization rate of urea aqueous solution as a reducing agent precursor and NOx purification are controlled by actively controlling the urea aqueous solution or ammonia storage amount in the NOx reduction catalyst. Improve the rate. When the exhaust temperature introduced into the NOx reduction catalyst becomes higher than a predetermined temperature T after the engine is started (S1), the urea aqueous solution injection supply is started regardless of the engine operating state (S2). Then, the ammonia concentration and the NOx concentration downstream of the NOx reduction catalyst are constantly monitored, and when the ammonia concentration reaches the allowable upper limit C NH3 (S3), the urea aqueous solution injection is stopped (S4). Then, when the ammonia concentration is less than the allowable upper limit value C NH3 and the NOx concentration is equal to or higher than the target value C NOx (S5 and S6), the process is terminated (that is, executed again from S1). [Selection] Figure 2 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012110986-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010172855-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011226402-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009156229-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8915066-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011117386-A |
| priorityDate | 2007-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.