摘要:
An ECU executes a program including: a control to advance or retard the fuel injection timing by a prescribed value; determining whether the torque output variation of an engine exceeds a threshold torque output variation; and determining the fuel injection timing to be abnormal if the torque output variation of the engine is equal to or below the threshold torque output variation.
摘要:
An electronic control unit 50 determines whether the ambient air in the vicinity of an oxygen concentration sensor 55 in an exhaust passage 30 has become equal to the atmospheric state as a fuel cut-off operation is executed. If the ambient air in the vicinity of the oxygen concentration sensor 55 is equal to the atmospheric state, the electronic control unit 50 executes a learning process, in which a detection value C of the oxygen concentration sensor 55 is stored as a learned value Cstd in a memory 56. The electronic control unit 50 continues the learning process until a predetermined time period set based on an exhaust gas transport delay elapses from when the fuel cut-off operation is terminated.
摘要:
The coverage characteristics or loading effect of an oxide film can be improved without having to increase the supply amount or time of an oxidant. There is provided method of manufacturing a semiconductor device. The method comprises loading at least one substrate to a processing chamber; forming an oxide film on the substrate by alternately supplying a first reaction material and a second reaction material containing oxygen atoms to the processing chamber while heating the substrate; and unloading the substrate from the processing chamber, wherein the forming of the oxide film is performed by keeping the substrate at a temperature equal to or lower than a self-decomposition temperature of the first reaction material and irradiating ultraviolet light to the second reaction material.
摘要:
An adsorption refrigeration system comprising adsorption columns housing a solid adsorbent and heat transfer tubes and sealed with a refrigerant, an evaporator, a condenser, and pipe lines connecting them together so that the refrigerant may be circulated, the pipe lines being equipped with valves, preferably, butterfly valves, capable of opening or closing by means of internal pressure difference between the evaporator side and condenser side and driving force of eccentric valve shafts. The system is operated by alternatively changing over adsorption and desorption stages between the one adsorption column(s) and the other column(s) so that both columns may be at mutually reverse stages; shortly before change-over, transferring whole amount of heat remained in the one column(s) immediately before shifting from desorption to adsorption stage to the other column(s) immediately before shifting from adsorption to desorption stage where the preheat the adsorbent and then reversing the stages. The evaporator preferably comprises heat transfer tubes for passage of a heating medium on a utilization side arranged in multi-stage, evaporating plates holding the refrigerant liquid in which each stage of the tubes are partly immersed, and overflow members for adjusting the liquid level, whereby evaporating ebullition occurs briskly.
摘要:
An adsorption thermal storage apparatus formed of an evacuated vessel comprising therein a refrigerant, and an adsorbent heating or cooling section and a refrigerant condensing or evaporating section located in communication with each other, the former section including an adsorbent and finned heat transfer tubes, the latter section including heat transfer tubes placed in dishes. An adsorption thermal storage system comprising the aforesaid apparatus; a heat source (e.g. a condenser of a compression refrigerator) for adsorbent heating; a cold source (e.g. an evaporator) for refrigerant condensation; an exothermic heat source (e.g. cooling tower); an endothermic heat source (e.g. air cooling coil); and a utilization equipment (e.g. air conditioner), the foregoing elements being connected so that during thermal storage period, the adsorbent heating or cooling section and the refrigerant condensing or evaporating section communicate with the heat source and the cold source, respectively, whereas during utilization period, the adsorbent section communicates with the exothermic heat source or heat utilization equipment and the refrigerant section communicates with cold utilization equipment or the endothermic heat source. By the desorption, the refrigerant is condensed and thermal energy is stored whereas cold is generated by latent heat of evaporation of the refrigerant liquid and heat, by adsorption heat of the refrigerant vapor, whereby heat and cold may be utilized singly or simultaneously.
摘要:
An electronic controller for a diesel engine (1) performs primary injection control in which primary injection of fuel is controlled based on an operational status of the diesel engine and additional injection control in which additional injection of the fuel is controlled for estimation of a cetane number of the fuel. The electronic controller includes a control means that, as the additional injection control, causes a plurality of fuel injections to be performed at different injection timings as the additional injection, calculates the amount of increase in torque of a crankshaft (14) due to each of the fuel injections, estimates injection timing at which misfiring starts to occur based on a trend of variation in the calculated torque increase amount as the injection timing of the fuel injections is shifted in one direction, and estimates the cetane number of the fuel based on the estimated injection timing.
摘要:
An ECU executes a program including: a control to advance or retard the fuel injection timing by a prescribed value; determining whether the torque output variation of an engine exceeds a threshold torque output variation; and determining the fuel injection timing to be abnormal if the torque output variation of the engine is equal to or below the threshold torque output variation.
摘要:
An electronic controller for a diesel engine (1) performs primary injection control in which primary injection of fuel is controlled based on an operational status of the diesel engine and additional injection control in which additional injection of the fuel is controlled for estimation of a cetane number of the fuel. The electronic controller includes a control means that, as the additional injection control, causes a plurality of fuel injections to be performed at different injection timings as the additional injection, calculates the amount of increase in torque of a crankshaft (14) due to each of the fuel injections, estimates injection timing at which misfiring starts to occur based on a trend of variation in the calculated torque increase amount as the injection timing of the fuel injections is shifted in one direction, and estimates the cetane number of the fuel based on the estimated injection timing.
摘要:
An electronic controller integrates a rate of progress dK of thermal degradation of exhaust purifying catalyst at every predetermined time period, to calculate degree of thermal degradation K of the exhaust purifying catalyst, when the state of thermal degradation of the exhaust purifying catalyst is to be detected. By comparing the degree of thermal degradation K with a defect determining value S, whether the exhaust purifying catalyst is defective because of thermal degradation or not is determined. In calculating the degree of thermal degradation K, the electronic controller calculates the rate of progress dK of thermal degradation in the predetermined time period based on the integrated value of rate of progress dK of thermal degradation up to the last time (degree of thermal degradation K) and on the temperature T of exhaust purifying catalyst at that time, and adds the same to the integrated value up to the last time.
摘要:
An X-ray fluorescence analyzing method includes irradiating a liquid sample (3A) containing hydrogen and at least one element of carbon, oxygen and nitrogen with primary X-rays (2); measuring the intensity F of fluorescent X-rays (4) from each of elements in the sample (3A) and having the atomic number 9 to 20, and the intensity S of scattered X-rays (12) from the sample (3A) caused by continuous X-rays in the primary X-rays; and calculating the concentration of each of the elements, based on the ratio between the measured intensity F, and the measured intensity S. The wavelength of the scattered X-rays (12) is so chosen as to be shorter than that of the fluorescent X-rays (4) and is so set that the measured intensity S and the mass absorption coefficient thereof are inversely proportional to each other within the range of variation of a composition of the sample (3A).