Patent application number | Description | Published |
20110271659 | TEMPERATURE SENSOR, SULFUR COMPONENT DETECTOR, AND EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - A temperature sensor includes temperature detecting means and at least one of a catalyst and an adsorbent applied to the surface of the temperature detecting means. At least one of the catalyst and the adsorbent catalyzes an exothermic reaction of a reactant in gas on the temperature detecting means. A temperature that is increased by the exothermic reaction is detected by the temperature detecting means. The catalytic efficiency for the exothermic reaction of at least one of the catalyst and the adsorbent is reduced by sulfur poisoning. The temperature sensor is disposed upstream of an exhaust purification system. Accordingly, it is determined that the temperature sensor is subjected to sulfur poisoning if the temperature detected by the temperature sensor is below a prescribed temperature. | 11-10-2011 |
20120110987 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An internal combustion engine in which an SO | 05-10-2012 |
20120180462 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system of an internal combustion engine has a selective reduction type NO | 07-19-2012 |
20120198824 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - The exhaust purification system of an internal combustion engine of the present invention is provided with an NO | 08-09-2012 |
20120216516 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An internal combustion engine in which an SOx trap catalyst for trapping SOx contained in the exhaust gas is comprised of an upstream side catalyst and a downstream side catalyst into which the exhaust gas flowing out from the upstream side catalyst flows. The SOx storing material of the upstream side catalyst is mainly comprised of an alkali earth metal, while the SOx storing material of the downstream side catalyst is mainly comprised of an alkali metal. | 08-30-2012 |
20120222405 | DETECTOR FOR DETECTING SULFUR COMPONENTS - The present detector for detecting sulfur components includes a storage portion for storing SO | 09-06-2012 |
20120279278 | DETECTOR FOR DETECTING SULFUR COMPONENTS - The present detector for detecting sulfur components includes a storage portion for storing SOx and NOx in the exhaust gas passing through an exhaust passage, in which the more an amount of stored SOx increases, the more an amount of NOx that can be stored decreases, estimates the amount of stored SOx on the basis of an amount of NOx stored in the storage portion, and detects an integrated amount of SOx passing through the exhaust passage during a given period or an value on the basis of the integrated amount. In the present detector, the estimating of the amount of stored SOx for detecting the integrated amount of SOx or the value on the basis of the integrated amount is prohibited when a current amount of NOx that can be stored is not stored in the storage portion. | 11-08-2012 |
20130042667 | DETECTOR FOR DETECTING SULFUR COMPONENTS - A detector for detecting sulfur components having a storage portion for storing SO | 02-21-2013 |
20130052087 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an exhaust purification system of an internal combustion engine of the present invention, a silver-alumina-based catalyst device and NO | 02-28-2013 |
20130121885 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve ( | 05-16-2013 |
20130243658 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, inside of an engine exhaust passage, an NO | 09-19-2013 |
20130315791 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system of an internal combustion engine of the present invention comprises a silver-alumina-based catalyst device arranged in the engine exhaust system. When a temperature of the silver-alumina-based catalyst device becomes a second set temperature T | 11-28-2013 |
20130323130 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system in which when an air-fuel ratio of exhaust gas is leaner than a stoichiometric air-fuel ratio, a silver-alumina-based catalyst device releases adsorbed NO | 12-05-2013 |
20140109767 | METHOD OF REMOVING ASH FROM PARTICULATE FILTER - A method of removing ash from a wall flow type particulate filter which is arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen for trapping particulate matter in exhaust gas, using a solid acid which is carried on the particulate filter, renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature, and then renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter in an oxidizing atmosphere contains SOx. | 04-24-2014 |
20140116033 | EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries a solid acid. The solid acid has a Hammett acidity function smaller than −0.83 and larger than −12 in the standard state. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed. | 05-01-2014 |
20140116034 | EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries an ash atomization agent. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed. | 05-01-2014 |
20140120001 | PARTICULATE FILTER - A wall flow type particulate filter ( | 05-01-2014 |
20140216016 | EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed. | 08-07-2014 |