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喷油时间
相关语句
  injection time
     fuel injection signal is also pulse width modulating signal, which chooses injection time and peak value, etc;
     喷油驱动器信号也为脉宽调制信号,选取喷油时间和峰值电压等为特征;
短句来源
     The research and analysis show that this kind of injection system can automatically regulate the injection pressure, fuel charge, injection rate and injection time, and therefore optimize the overall properties of diesel engine, and alleviate the vibration of diesel engine and exhaust emission. It is a new generation of diesel injection system.
     研究分析表明这种喷油系统能够自动调节喷油压力、喷油量、喷油率和喷油时间,从而优化柴油机综合性能,减轻柴油机的振动和降低排放,是全新一代柴油机燃油系统。
短句来源
  “喷油时间”译为未确定词的双语例句
     This paper also discusses the affection of the air motion and combustion process on the different geometric parameters, the loads, the swirl ratios and the injection times.
     改变了负荷、涡流比、喷油时间等工况参数,分析了它们对燃烧过程动力和排放性能的影响。
短句来源
     The technical line of the thesis is as follows:Formula of quantity of fuel injection is got by studying relation of quantity of fuel injection and needle valve lift, time of fuel injection, rotation speed and pressure, and quantity of fuel injection is displayed.
     本课题研究的技术路线为:通过研究喷油量与针阀升程、喷油时间、主轴转速、喷油压力等的关系,推导出精确的喷油量计算公式,最终由显示器显示喷油量。
短句来源
     (2) Area of wave shape is calcuted, and relation of voltage, time of fuel injection and area is got.
     (2)计算针阀升程信号波形的积分面积并推导积分面积与波形电压值及喷油时间的关系。
短句来源
     (2) Relation of quantity of fuel injection and needle vavle lift,rotation speed and pressure is got.
     (2)测定喷油量与针阀升程、喷油时间、主轴转速、喷油压力的关系。 (3)喷油量计算公式中修正系数K的确定。
短句来源
     By improving the engine combustion system in different aspects to greatly reduce theexhaust emission, such as using complex injection nozzle and special combustion chamber torealize the rapid combustion, as well as combining with the electronic control technique to adjustthe fuel injection timing and amount, the exhaust port insulation can be utilized to increase theengine output and the fuel comsumption can be reduced.
     通过对发动机燃烧系统进行多方面的改进,如采用复合油嘴和特殊的燃烧室实现的快速燃烧技术,配合以调节喷油量和喷油时间的电控技术,可使发动机的排放大幅度降低.采用缸内排气绝热技术,可提高原机功率,降低油耗.同时采用排气后处理技术,如采用微波再生微粒陶瓷过滤器或采用加电金属网过滤装置,使碳烟微粒燃烧成CO2排出;
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     Time
     时间
短句来源
     Time is...
     时间
短句来源
     Retarding fuel injection timing can also reduce NOx and PM emission effectively for bio-diesel engine.
     此外,通过推迟喷油时间,可以进一步降低柴油机的NOx污染物。
短句来源
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  injection time
However, the change in the saturations and overall composition takes place in times approximately 200 times greater than the injection time.
      
Variables affecting the shrinkage of the cage are considered, e.g., injection time, packing pressure, mold temperature, and melt temperature.
      
The parameters studied are the total concentration of the two solutes in the gas phase at the inlet of the column, the injection time, the column length, the relative concentrations of the products.
      
This saturated fractional design approach was used to simultaneously investigate the variables pH, cyclodextrin concentration, electrolyte ionic strength, methanol concentration, and injection time, each at three levels.
      
Based on the linear relationship between large sample injection time during hydrodynamic injection and migration time in non-stacking runs, a new method is proposed to measure average hydrodynamic velocity in capillary zone electrophoresis (CZE).
      
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This paper deals with single frame, high speed flashing photography of the diesel spray, by means of which the spray penetration characteristics is studied. On the basis of the statistic theory, the steadiness of a diesel spray and the characteristics of the fuel injection system is investigated and analysed.

本文叙述并讨论利用高速闪光的单张摄影方法来研究柴油机中的喷雾。由于文中提供的实验装置和方法可以取得在同一个精确角位下多次重复喷射的雾注照片,故可采用统计方法对喷注以及与之相关的燃油喷射系统的稳定性进行观察和分析。通过对不同角位摄取大量照片可以得到具有统计平均意义的喷雾贯穿度一时间特性。对喷雾贯穿特性的研究表明,在喷油时间t≤1毫秒(ms)时,贯穿度(s)∞t~a,其中a值为1.1—1.2,而仅在t>1ms以后,方存在着以前有关文献中确认的S∞t~0.5关系。通过理论分析,说明在使用相同的喷咀结构时,各时期的平均喷油速率可以与喷雾贯穿特性直接联系起来,即在着火延迟期内,值决定了t=1ms时的初始贯穿度S_1,而在喷射后期,与贯穿度常数S~2/t的大小成正比例。为查明贯穿特性对柴油机性能的影响,文中通过若干发动机试验结果,进行了初步分析。

By improving the engine combustion system in different aspects to greatly reduce theexhaust emission, such as using complex injection nozzle and special combustion chamber torealize the rapid combustion, as well as combining with the electronic control technique to adjustthe fuel injection timing and amount, the exhaust port insulation can be utilized to increase theengine output and the fuel comsumption can be reduced. In the meantime, adopting the exhaustaftertreatment can further purify the exhaust emission...

By improving the engine combustion system in different aspects to greatly reduce theexhaust emission, such as using complex injection nozzle and special combustion chamber torealize the rapid combustion, as well as combining with the electronic control technique to adjustthe fuel injection timing and amount, the exhaust port insulation can be utilized to increase theengine output and the fuel comsumption can be reduced. In the meantime, adopting the exhaustaftertreatment can further purify the exhaust emission in order to finally reach the stringentemission regulation, such as the microwave regeneration of the diesel particulate ceramic trap toburn the soot into CO2 or the filtration of diesel particulate by electrically charged metal net andthe reduction of NOx emission to CO2 and N2 by modified carbon fiber.

通过对发动机燃烧系统进行多方面的改进,如采用复合油嘴和特殊的燃烧室实现的快速燃烧技术,配合以调节喷油量和喷油时间的电控技术,可使发动机的排放大幅度降低.采用缸内排气绝热技术,可提高原机功率,降低油耗.同时采用排气后处理技术,如采用微波再生微粒陶瓷过滤器或采用加电金属网过滤装置,使碳烟微粒燃烧成CO2排出;采用催化改性碳纤维将NOx还原为CO2及N2的技术,使汽车排气进一步净化,最终可达到严格的汽车排放标准.

In fault diagnosis system of neural net , applying fuse technology to analyze synthetically the different kinds of related signals of engine, can rapidly and accurately diagnose engine faults. The paper illustrates the diagnosis way by fusing IACV (idle air control valve)signal , SFl(sequential fuel injection) signal and ECT (enginecoolant temperature) signal to diagnose idle system faults. The diagnosis is finished by choosing characters of three kinds of signals in the system of neural net. On the characters,...

In fault diagnosis system of neural net , applying fuse technology to analyze synthetically the different kinds of related signals of engine, can rapidly and accurately diagnose engine faults. The paper illustrates the diagnosis way by fusing IACV (idle air control valve)signal , SFl(sequential fuel injection) signal and ECT (enginecoolant temperature) signal to diagnose idle system faults. The diagnosis is finished by choosing characters of three kinds of signals in the system of neural net. On the characters, IACV is pulse width modulating signal, which chooses pulse width and peak value, etc; fuel injection signal is also pulse width modulating signal, which chooses injection time and peak value, etc; water temperature signal chooses the temperature of different phase because of its slow variation. BP of neural net is improved by adding momentum term and adjusting dynamic parameters twice.

主要融合了怠速控制阀信号、喷油驱动器信号及水温传感器信号,设计了通过提取信号特征值,应用神经网络故障识别系统诊断发动机怠速不良故障。信号特征以各自信号的特点提取,其中怠速控制阀信号为脉宽调制信号,选取脉宽及幅值等参数为特征;喷油驱动器信号也为脉宽调制信号,选取喷油时间和峰值电压等为特征;水温信号因其为慢速变化信号,取不同阶段的水温为特征。神经网络的BP算法加入动量项法和动态参数两阶段调整法进行改进。

 
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