| Patent application number | Description | Published |
|---|
| 20090019836 | Exhaust gas purification method and exhaust gas purification system - An exhaust gas purification system has a NOx purification catalyst ( | 01-22-2009 |
| 20090044516 | Method of Controlling Nochi Purification System and Nox Purification System - A method of controlling an NOx purification system ( | 02-19-2009 |
| 20090056314 | Exhaust Gas Purification Method and Exhaust Gas Purification System - An exhaust gas purification system ( | 03-05-2009 |
| 20090077947 | Sulfur purge control method for exhaust gas purifying system and exhaust gas purifying system - In an exhaust gas purifying system ( | 03-26-2009 |
| 20090120069 | Method for Control of Exhaust Gas Purification System, and Exhaust Gas Purification System - The degree of a deterioration in catalyst is determined when the following requirements are satisfied: the operating state of an internal combustion engine (E) is in a predetermined operating state; and the temperature (T | 05-14-2009 |
| 20090126347 | Regenaration Control Method for Exhaust Gas Purification System, and Exhaust Gas Purification System - In an exhaust gas purification system ( | 05-21-2009 |
| 20090235646 | EXHAUST GAS PURIFICATION METHOD AND SYSTEM - In regeneration control of an exhaust gas purification system ( | 09-24-2009 |
| 20100101218 | NOx PURIFICATION SYSTEM AND METHOD FOR CONTROL OF NOx PURIFICATION SYSTEM - In an NOx purification system and a method for control of the NOx purification system, two oxidation catalysts are provided upstream of an ammonia solution supply unit, and the in-cylinder fuel injection is so controlled that hydrocarbon in exhaust gas is mainly oxidized by the upstream oxidation catalyst and nitric oxide in the exhaust gas is mainly oxidized by the downstream oxidation catalyst. In the purification of NOx in the exhaust gas by feeding an ammonia solution for NOx reduction to a selective reduction NOx catalyst, this technique enables the system to adjust the concentrations of HC, NO and NO | 04-29-2010 |
| 20100115924 | METHOD OF CONTROLLING NOx PURIFICATION SYSTEM AND NOx PURIFICATION SYSTEM - In a NOx purification system | 05-13-2010 |
| 20100115926 | METHOD OF CONTROLLING NOx PURIFICATION SYSTEM AND NOx PURIFICATION SYSTEM - An NOx purification system having a selective reduction catalyst, adapted so that even when no ammonia or urea is supplied, NOx is converted to ammonia by a first catalyst including a lean NOx catalyst or a ternary catalyst at ammonia formation control and the ammonia is adsorbed by the selective reduction catalyst disposed downstream and so that by the adsorbed ammonia, there is carried out reduction purification of the NOx contained in the exhaust gas when no ammonia formation control is performed by the selective reduction catalyst. At the ammonia formation control, an ammonia adsorption target amount being a target value of ammonia adsorbed by the selective reduction catalyst is computed, and the ammonia formation control is carried out only when a cumulative value of an ammonia formation amount formed by the first catalyst at the ammonia formation control is under the ammonia adsorption target amount. Consequently, ammonia is stably supplied in just proportion to the selective reduction catalyst. | 05-13-2010 |
| 20100307132 | NOx PURIFICATION SYSTEM AND METHOD FOR CONTROL OF NOx PURIFICATION SYSTEM - When the operating state of an internal combustion engine ( | 12-09-2010 |
| 20100319328 | FUEL INJECTION CONTROL DEVICE - Provided is a fuel injection control device that affords a wider lower limit range of injection amount by a injector for cylinder outside injection, and that can respond to injection requirements over a wider injection amount range. A fuel injection control device includes: a injector | 12-23-2010 |
| 20110041479 | EXHAUST GAS PURIFICATION METHOD AND EXHAUST GAS PURIFICATION SYSTEM - Disclosed is an exhaust gas purification method, and also disclosed is an exhaust gas purification system ( | 02-24-2011 |
| 20110047990 | EXHAUST GAS PURIFIER AND SYSTEM FOR EXHAUST GAS PURIFICATION - In an exhaust gas purifier ( | 03-03-2011 |
| 20110061366 | SYSTEM FOR EXHAUST GAS PURIFICATION AND METHOD OF CONTROLLING THE SAME - A system for exhaust gas purification ( | 03-17-2011 |
| 20110072806 | EXHAUST GAS PURIFICATION APPARATUS - In an exhaust gas purification apparatus ( | 03-31-2011 |
