摘要:
An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which exhaust gas containing NOx gas passes, and a catalyst disposed in the exhaust gas duct such that it contacts the exhaust gas. The catalyst chemically adsorbs NOx when a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NOx, adsorbed NOx is catalytically reduced in the presence of a reducing agent when the stoichiometric amount of the oxidizing agent is not larger that of the reducing agent.
摘要:
An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which exhaust gas containing NOx gas passes, and a catalyst disposed in the exhaust gas duct such that it contacts the exhaust gas. The catalyst chemically adsorbs NOx when a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NOx, adsorbed NOx is catalytically reduced in the presence of a reducing agent when the stoichiometric amount of the oxidizing agent is not larger that of the reducing agent.
摘要:
An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which exhaust gas containing NO.sub.x gas passes, and a catalyst disposed in the exhaust gas duct such that it contacts the exhaust gas. The catalyst chemically adsorbs NO.sub.x when a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NO.sub.x, adsorbed NO.sub.x is catalytically reduced in the presence of a reducing agent when the stoichiometric amount of the oxidizing agent is not larger that of the reducing agent.
摘要:
An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which the exhaust gas containing NOx gas passes and a catalyst so disposed in the exhaust gas duct that it contacts with the exhaust gas. The catalyst chemically adsorbs NOx under the condition that a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NOx, while NOx being adsorbed is catalytically reduced in the presence of the reducing agent under the condition that the stoichiometric amount of the oxidizing agent is not larger that of the reducing agent. Thereby, NOx the lean burn exhaust gas in the engine can be effectively made harmlessly.
摘要:
An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which the exhaust gas containing NOx gas passes and a catalyst so disposed in the exhaust gas duct that it contacts with the exhaust gas.The catalyst chemically adsorbs NOx under the condition that a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NOx, while NOx being adsorbed is catalytically reduced in the presence of the reducing agent under the condition that the stoichiometric amount of the oxidizing agent is not larger that of the reducing agent.Thereby, NOx, the lean burn exhaust gas in the engine can be effectively made harmlessly.
摘要:
When the theft occurs, all wheels of an automobile or one wheel or more is mechanically locked to prevent the self-running theft or the tow-theft. There are used a theft detection unit which detects the theft based on the detection of the states of the various doors opening, the vibration of the vehicle body, the unlocking by using something except the regular key, the engine starting in the unlocked state, a braking force control means which locks all wheels or one wheel or more based on a signal from the theft detection means, and a braking force generation means which mechanically holds braking force while locking. When the theft occurs, all wheels or one wheel or more are locked.
摘要:
A power supplying apparatus and method for a vehicle are disclosed. A plurality of loads and a plurality of power supplies are connected to each other in such a manner that one of the loads is connected to a plurality of the power supplies, and one of the plurality of the power supplies is connected to a plurality of the loads. Further, the power supplies and the loads are connected through a breaker unit for electrically disconnecting the circuit under predetermined conditions and a unidirectional conductive unit for allowing the current to flow in one direction and blocking the current in the opposite direction.
摘要:
An exhaust gas purification control apparatus is used for an engine provided with a NOx catalyst absorbing or adsorbing NOx when an air fuel ratio of exhaust gas from the engine is lean and reducing the absorbed or adsorbed NOx when the exhaust gas is at the stoichiometric air fuel ratio or richer in fuel, and an exhaust sensor arranged upstream or downstream of the NOx catalyst, and characterized in that thed exhaust gas purification control apparatus comprises a sulphur component calculating means for calculating or estimating a quantity of sulphur components in the exhaust gas and an operation mode changing means for changing an air fuel ratio of the engine on the basis of the detected value of the sulphur components, and the calculated or estimated value of sulphur components is a prescribed value or more, the operation changing means decreases frequencies of lean mode operation of the engine, shortens continuation time of the lean mode operation or prohibits the lean mode operation.
摘要:
A method and apparatus for monitoring deterioration of an internal combustion engine exhaust gas purifier in which first and second sensors are disposed on the upstream and downstream sides respectively of the purifier. The sensors are connected to an electronic control unit which, in normal operation, is arranged to control the air-fuel mixture supplied to each cylinder of the engine by controlling the amount of fuel supplied by an injector so that the air-fuel ratio is a predetermined mean value. The air-fuel ratio is changed from one predetermined value to another predetermined value and delay time taken for the second sensor to change its response subsequent to said change is indicative of the condition of the purifier so that deterioration of the purifier may be readily determined.
摘要:
In an air-fuel ratio control method and apparatus for an internal combustion engine supplied with a gas mixture of air and fuel, in which an actual air-fuel ratio is determined from exhaust gas components by using an O.sub.2 -sensor installed in an exhaust pipe of the engine, and the air-fuel ratio of the mixture gas to be supplied to the engine is controlled through feedback control on the basis of deviation of the actually detected air-fuel ratio from a reference value (A/F=14.7). Performance of the O.sub.2 -sensor is determined by making use of change in the air-fuel ratio output of the O.sub.2 -sensor at a time of interruption of the fuel supply to the engine or at a time the fuel supply to the engine is restarted.
摘要翻译:在一种空燃比控制方法和装置中,该内燃机供给有空气和燃料的气体混合物,其中通过使用安装在排气管中的O 2传感器从排气成分确定实际空燃比 并且通过基于实际检测到的空燃比与基准值(A / F = 14.7)的偏差的反馈控制来控制供给到发动机的混合气体的空燃比。 O2传感器的性能通过利用在发动机的燃料供应中断时或者在重新启动对发动机的燃料供给时的O2传感器的空燃比输出的变化来确定。