Patent application number | Description | Published |
20080302090 | Exhaust purification device of internal combustion engine | 12-11-2008 |
20090025369 | Exhaust Purification Device of Compression Ignition Type Internal Combustion Engine - In an internal combustion engine, the engine is formed so that an output of an electric motor can be superposed on an output of the engine. In the engine exhaust passage upstream of the NO | 01-29-2009 |
20090031705 | Exhaust Gas Purification Device of Compression Ignition Type Internal Combustion Engine - An internal combustion engine in which an SO | 02-05-2009 |
20090038291 | Internal Combustion Engine - A post-treatment system comprised of an SO | 02-12-2009 |
20090049826 | Exhaust Purification System of Internal Combustion Engine - An NOx adsorbent is arranged in an exhaust passage of an internal combustion engine, a fuel addition valve ( | 02-26-2009 |
20090142239 | Exhaust purification apparatus of internal combustion engine - An exhaust purification apparatus of an internal combustion engine purifying exhaust gas by removing SOx from the exhaust gas is provided. In the exhaust purification apparatus provided with sulfur oxide trapping material for trapping sulfur oxides exhausted from an internal combustion engine, aggregates of the sulfur oxide trapping material ( | 06-04-2009 |
20090145113 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - An internal combustion engine in which a front end catalyst ( | 06-11-2009 |
20090151331 | Exhaust Purification Device of Internal Combustion Engine - An internal combustion engine in which a main SO | 06-18-2009 |
20090158716 | Exhaust gas purification system for an internal combustion engine - The present invention is to provide a technique which can detect the level of degradation of a precatalyst in an exhaust gas purification system for an internal combustion engine that includes a NOx catalyst arranged on an exhaust passage of the internal combustion engine, and the precatalyst arranged on the exhaust passage at a location upstream of the NOx catalyst and having an oxidation function. In the present invention, the level of degradation of the precatalyst is detected based on the width of change in temperature of the NOx catalyst at the time when a reducing agent is intermittently supplied from an upstream side of the precatalyst to the precatalyst and the NOx catalyst. At this time, it is determined that the larger the width of change in temperature of the NOx catalyst, the higher the level of degradation of the oxidation catalyst is. | 06-25-2009 |
20090178392 | Exhaust Gas Purification System for Internal Combustion Engine and Method for Regenerating Purification Ability of Exhaust gas Purification Device - The problem is to regenerate the purification ability of an exhaust gas purification device more reliably or efficiently in an exhaust gas purification system that combines a plurality of branch passages branch off from an exhaust gas passage and exhaust gas purification devices. When the purification ability of an exhaust gas purification device is regenerated, in the branch passage where the exhaust gas purification device is provided whose purification ability is to be regenerated, the opening angle of an exhaust gas flow volume control valve is set to the minimum opening angle that can reliably transport a reducing agent that is added from a reducing agent addition section. While the opening angle is maintained, the reducing agent is added. After the addition of the reducing agent is complete, the opening angle of an exhaust gas flow volume control valve is closed completely. | 07-16-2009 |
20090183493 | Exhaust Purification System of Internal Combustion Engine - When performing temperature elevation control at a first exhaust purification device | 07-23-2009 |
20090188238 | Exhaust Purification Device of Compression Ignition Type Internal Combustion Engine - In an internal combustion engine, the engine is formed so that an output of an electric motor can be superposed on an output of the engine. An SO | 07-30-2009 |
20090249768 | Exhaust Purification System of Internal Combustion Engine - HC feed control for feeding HC into exhaust gas upstream of an SOx trap | 10-08-2009 |
20090255233 | Exhaust purification device and exhaust purification method of internal combustion engine | 10-15-2009 |
20090266057 | EXHAUST PURIFICATION DEVICE OF AN INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NOX selective reducing catalyst is arranged in the engine exhaust passage, and an NOX storage catalyst able to store NOX contained in the exhaust gas is arranged at the upstream of the NOX selective reducing catalyst. The NOX storage catalyst is fed with mist fuel, and the NOX stored in the NOX storage catalyst and the fed fuel are used to produce an intermediate product comprising bonded molecules comprised of NH2 and a hydrocarbon molecule more than an equivalent ratio with respect to one NOX molecule. These intermediate products are adsorbed at the NOX selective reducing catalyst, whereby the adsorbed intermediate product reduces the NOX in the exhaust gas. | 10-29-2009 |
20090308053 | Exhaust Purification Device of Internal Combustion Engine | 12-17-2009 |
20090320450 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - A sight-line end estimation device includes a sight-line direction detection portion that detects a sight-line direction of a driver of a vehicle, a target object detection portion that detects the positions of target objects existing around the vehicle, a relative position acquisition portion that acquires relative positional information between the driver and the target object detection portion, and a sight-line end estimation portion that estimates the driver's sight-line end by detecting a target object whose position detected by the target object detection portion lies substantially in the driver's sight-line direction detected by the sight-line direction detection portion, factoring in the relative positional information acquired by the relative position acquisition portion. | 12-31-2009 |
20090320451 | Exhaust purification device of internal combustion engine - In an internal combustion engine, an SO | 12-31-2009 |
20100064669 | O3 PRODUCTION APPARATUS AND EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to produce O | 03-18-2010 |
20100089038 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - An internal combustion engine wherein an HC treatment catalyst ( | 04-15-2010 |
20100095741 | Sulfur component detecting device - In an internal combustion engine, a metal or a metal compound ( | 04-22-2010 |
20100115923 | EXHAUST PURIFICATION DEVICE OF AN INTERNAL COMBUSTION ENGINE - In an internal combustion engine, a pair of NO | 05-13-2010 |
20100139259 | EXHAUST PURIFICATION DEVICE OF AN INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 06-10-2010 |
20100186378 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An apparatus including an exhaust passage that forks at a separating portion and joins at a joining portion, exhaust gas purification catalysts between the separating portion and the joining portion, a filter downstream of the joining portion, reducing agent supply units supplying reducing agent to the respective exhaust passages at positions upstream of the exhaust gas purification catalysts, and control units controlling quantity of the exhaust gas passing through the exhaust gas purification catalysts. When regenerating the filter, the reducing agent is supplied by one reducing agent supply unit, and the quantity of exhaust gas passing through the exhaust gas purification catalyst provided in the exhaust passage to which the reducing agent is supplied is made smaller. | 07-29-2010 |
20110041487 | CATALYST APPARATUS AND EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object is to provide a technology with which the temperature of exhaust gas can be raised with improved efficiency in cases where a catalyst apparatus including a catalyst having an oxidizing ability is provided in an exhaust passage of an internal combustion engine. According to the present invention, a catalyst apparatus | 02-24-2011 |
20110113757 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an exhaust purification system of an internal combustion engine comprising an exhaust purification device which receives a bad influence from SO | 05-19-2011 |
20110113763 | EXHAUST GAS PURIFICATION APPARATUS OF AN INTERNAL COMBUSTION ENGINE - In an exhaust gas purification apparatus of an internal combustion engine, there is provided a technique that is able to quickly raise the temperature of a catalyst arranged at a downstream side by raising the temperature of a catalyst arranged at an upstream side in a quick manner. The apparatus is provided with an exhaust gas purification catalyst, a plurality of catalysts that are arranged at an upstream side of the exhaust gas purification catalyst and have oxidizing ability, a fuel supply device that supplies fuel to one catalyst which is arranged at the most upstream side, and a heating device that heats the one catalyst, wherein the plurality of catalysts having oxidizing ability are arranged in an exhaust passage in series to the direction of flow of an exhaust gas, and the more upstream side the catalysts are arranged at, the smaller the cross-sectional areas of the catalysts formed by cutting planes which are orthogonal to a central axis of the exhaust passage are made. | 05-19-2011 |
20110258989 | EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust purification apparatus for an internal combustion engine according to the present invention includes a heated gas generation apparatus configured to generate heated gas utilizing exhaust gas flowing through an exhaust passage. The heated gas generation apparatus includes a catalyst configured to provide an oxidation function, a fuel supply nozzle, and a heater. An exhaust purification unit is provided downstream of the heated gas generation apparatus. An incoming gas temperature of the exhaust purification unit is detected and estimated. An actual incoming gas temperature being a detected value and an estimated incoming gas temperature both acquired when at least the fuel supply nozzle is actuated are compared with each other. Based on the result of the comparison, the apparatus detects one of poisoning of the catalyst with HC and degradation of the catalyst. Thus, the heated gas generation apparatus is prevented from discharging HC. | 10-27-2011 |
20110265455 | AMMONIA BURNING INTERNAL COMBUSTION ENGINE - An ammonia burning internal combustion engine capable of using ammonia as fuel comprises an exhaust purifying catalyst purifying ammonia and NO | 11-03-2011 |
20120000190 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - In an exhaust gas purification system for an internal combustion engine, a NO | 01-05-2012 |
20120102927 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system of an internal combustion engine is provided with a first NO | 05-03-2012 |
20130017136 | EXHAUST GAS CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINEAANM Hirota; ShinyaAACI Susono-shiAACO JPAAGP Hirota; Shinya Susono-shi JPAANM Yamashita; YoshinoriAACI Kakegawa-shiAACO JPAAGP Yamashita; Yoshinori Kakegawa-shi JP - A NOx selective reduction catalyst for reducing NOx by the ammonia adsorbed is disposed in an engine exhaust gas passage. As states of adsorption of ammonia by the catalyst, there are a first adsorption state of ammonia that occurs when the ammonia is adsorbed during low temperature and a second adsorption state of ammonia that occurs when the ammonia is adsorbed or has already been adsorbed during high temperature. The amount of adsorbed ammonia in the first state is restricted to control concentration of the ammonia that is in the first state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration, and that in the second state is restricted to control concentration of the ammonia that is in the second state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration. | 01-17-2013 |
20130052107 | EXHAUST GAS PURIFICATION APPARATUS OF AN INTERNAL COMBUSTION ENGINE - A technique that, in an exhaust gas purification apparatus of an internal combustion engine, can avoid a decrease in a NOx purification rate by adding a reducing agent as continuously as possible, while avoiding NH | 02-28-2013 |
20130055703 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst. | 03-07-2013 |
20130058832 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An exhaust gas purification system is equipped with a burner in an exhaust passage upstream of an exhaust gas purification apparatus and having a burner combustion chamber in which flame is produced. When the temperature of the exhaust gas purification apparatus is raised, the burner produces flame that extends from the interior of the burner combustion chamber to the interior of the exhaust passage when the flow rate of the exhaust gas is not higher than a predetermined flow rate, and the burner causes the size of the flame to be smaller than when it is determined that the flow rate of the exhaust gas is not higher than the predetermined flow rate or to produce flame only in the interior of the burner combustion chamber when it is determined that the flow rate of exhaust gas is higher than the predetermined flow rate. | 03-07-2013 |
20130108529 | EXHAUST GAS CONTROL APPARATUS AND REDUCTANT DISPENSING METHOD FOR INTERNAL COMBUSTION ENGINE | 05-02-2013 |
20130118156 | EXHAUST GAS TEMPERATURE RAISING APPARATUS AND A METHOD FOR REMOVAL OF FUEL SUPPLY VALVE CLOGGING - The present invention is intended to provide a technique which serves to suppress unburnt HC from being discharged to a downstream side, when fuel is injected from a fuel supply valve for removing clogging thereof. The present invention is provided with a fuel supply valve that supplies fuel to an exhaust passage of an internal combustion engine, and an ignition unit that ignites the fuel supplied from the fuel supply valve, wherein in cases where there is a possibility that clogging may occur in an injection hole of the fuel supply valve, fuel for removal of clogging is injected from the fuel supply valve. An amount of the fuel to be injected from the fuel supply valve for removing clogging thereof is an amount of fuel which is able to be combusted by being ignited by means of the ignition unit. | 05-16-2013 |
20130247543 | EXHAUST GAS CONTROL APPARATUS AND CONTROL METHOD FOR EXHAUST GAS CONTROL APPARATUS - An exhaust gas control apparatus includes a control device controlling a urea addition valve for adding urea from an upstream side of a NOx reduction catalyst. The control device obtains an ammonia adsorption amount distribution through the NOx reduction catalyst. When an ammonia adsorption amount in a predetermined part on a downstream side equals or exceeds a predetermined threshold, the control device controls the urea addition valve to stop the urea supply or reduce the amount thereof. The urea addition valve is controlled based on an adsorption amount distribution obtained from a model on which the catalyst is divided into cells such that an ammonia adsorption amount in a first cell positioned furthest upstream equals or exceeds a predetermined threshold close to a saturation adsorption amount and an ammonia adsorption amount in a second cell positioned downstream of the first cell reaches a predetermined target value smaller than the threshold. | 09-26-2013 |
20140112833 | EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - The purpose of the present invention is to suppress degradation of a PM sensor and a decrease in detection accuracy of the amount of PM in a configuration in which a urea addition unit and a selective reduction-type NOx catalyst (NOx catalyst) are provided downstream of a particulate filter (filter) in an internal corn engine exhaust passage, the PM sensor being disposed downstream of the filter. According to the present invention, in an exhaust passage ( | 04-24-2014 |
20140216015 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present invention resides in an exhaust gas purification apparatus for an internal combustion engine, comprising an exhaust gas purification catalyst which is arranged in an exhaust gas passage of the internal combustion engine for a reducing agent added from a reducing agent addition valve, the reducing agent addition valve which adds the reducing agent to an exhaust gas allowed to flow upstream from the exhaust gas purification catalyst, and a dispersion member which disperses the reducing agent added from the reducing agent addition valve, wherein a task or object thereof is to form fine particles of the reducing agent and improve the dispersibility while suppressing the increase in the exhaust resistance caused by the dispersion member to be small. In order to solve the task or achieve the object, in the present invention, the dispersion member is arranged only on a flight route of a coarse reducing agent which is included in the reducing agent added from the reducing agent addition valve and which has relatively large particle diameters. | 08-07-2014 |