The Influences of Injection Timing Angle Increase on Diesel Engine Performance before TDC 供油提前角增大对柴油机性能的影响分析
Influences of starting fuel quantity and main injection advance angle on starting characteristics of common rail diesel engine 共轨柴油机起动油量和主喷提前角对起动特性的影响
The method of precious control of fuel injection timing of the common rail pressure-accumulating electronic control fuel injection system realized by optimizing MAP graph of fuel injection delay angle is analyzed in detail. 具体分析了通过优化喷油延迟角MAP图来实现共轨蓄压式电控喷油系统喷油正时精确控制的方法。
Moreover, the notion of best water-injection crank angle was put forward, which provided theoretical basis to design and improve the performance of water-injection internal cooling in the reciprocating compressors. 并在此基础上提出了最佳喷水角的概念,为活塞压缩机喷水内冷却技术的实现及性能改进提供了一定的理论依据。
The effect of injection advance angle on spray, combustion and soot formation was investigated. 介绍了采用同步双成像技术研究供油提前角对直喷式柴油机喷雾、燃烧和碳粒变化历程影响的研究结果。
On the basis of dynamic mathematical model and heat transfer model of compressor, the vapor injection and liquid injection are respectively analyzed in detail. The effects of compressor ′ s speed, injection pressure and injection angle on refrigerant injection are studied at length. 以压缩机动态数学模型和换热模型为基础,详细阐述了喷射气态制冷剂和喷射液态制冷剂两种应用方式和作用,分析了压缩机转速、喷射压力和喷角等因素对喷液的影响。
RESEARCH ON DIESEL INJECTION TIMING OF AN HYBRID COMBUSTION SYSTEM BASED ON CYLINDER PRESSURE The results show that ignition may occur after injection stops if the injection advance angle is increased. 混合燃烧系统柴油喷射提前角对缸内压力的影响研究结果表明:增大供油提前角时,着火会发生在燃油停止喷射后。
The influences of reducing the distance between the target and magnet exit and the effect of changing injection angle of the magnet have been discussed to obtain the more compact deflecting magnet. 为实用需要,探讨了缩短靶与磁铁出口的距离和改变入射角所引起的影响,以便减少旋转治疗头的回转半径和设计更轻巧的偏转磁铁。
The three main parameters affecting the oil~ saving rate: injection advance angle, injection pressure and mixed~ water quantity are analyzed quantitatively, and at the end, their optimum values are given. 对影响其节油率的三个主要参数(供油提前角、喷油压力和掺水量)进行了定量分析,并得出了它们的最优数值。
The experimental results showed that about 30 degrees of injection angle gave the lowest consumption of fuel. 试验结果表明在30度左右喷油提前角时综合油耗最低。
The Effect of a Secondary Air Injection Angle on the Deviation of Flue Gas Flow Rate at a Tangentially Fired Furnace Outlet 二次风喷射角度对切向燃烧炉膛出口烟气流量偏差的影响
Influence of injection angle on the thermodynamic aspects of end wall film-cooling in a turbine cascade 喷射角对涡轮叶栅端壁气膜冷却传热的影响
Investigation in An Advanced Injection Angle Self-Adjusting Mechanism 一种自动调节喷油提前角机构的研究
Soot formation can be restrained hence the emission of soot can be decreased with the increased injection advance angle. 增大供油提前角可以减少燃烧过程前期的碳粒生成量,进而降低碳粒排放。
The results show that the flow loss is reduced with the increasing of the coolant mass when the injection angle is 30 ° at the instant of injection from single row of holes. 数值计算结果表明,对于具有单排孔冷气入射的气膜冷却情况,当入射角是30°时,随着冷气流量增加,流动损失减小;
The influence of the injection timing and the injection angle was studied. 就喷油参数对汽油缸内直喷的影响进行了分析,研究了喷油定时与喷油角度的作用。
The influence of the geometry of crescent and the injection angle β on the perfomance of the AVG is examined. 研究了新月形的几何形状、射流角β对空气涡流器性能的影响。
The fuel consumption rate and exhaust emission increased when the fuel temperature surpassed the optimum range, since the combustion was deteriorated by after burning which was caused due to fuel injection angle delay. 但燃油温度过高时,由于实际喷油滞后角增加过大,致使后燃增加,燃烧恶化,燃油消耗率和污染物排放均增加。
The results show that mean pressure, mean temperature and accumulated heat release will increase with advance of injection angle, but at the same time NOx and soot mass fraction will increase too; the extended injection duration will result in mean pressure lower too much. 研究表明:喷油提前角加大,缸内的压力、温度以及累积放热率都会增加,同时NOx和碳粒的生成也有所增加;喷油持续期的加大则会造成缸内压力的过多降低。
The results show that the mixing hole diameter, the velocity of injected air and the fuel injection angle have important impact on flameless combustion characteristics. 研究结果表明掺混孔直径、来流的空气速度以及燃油的喷射角度都会对无焰燃烧特性有着重要的影响。
In this paper the CFD simulation software AVL FIRE is introduced to simulation combustion process of 4102 DI diesel engine in connection with the fuel injection advance angle and nozzle hole cone angle of fuel injection system. 针对燃油喷射过程中的喷油提前角和喷孔锥角两个因素,本文应用三维CFD仿真软件AVLFIRE对CY4102直喷式柴油机的燃烧过程进行了数值模拟计算。
The influence of fuel injection parameters including injection angle, injection pressure and injection timing on the spray impingement are also studied. 同时研究了包括喷油角度、喷油压力和喷油提前角的燃油喷射参数对燃油喷射撞壁的影响,通过仿真分析,给出了喷射参数对燃油运动和壁面油膜形成的影响规律。
Mechanical system is responsible for adjusting injection angle and injection position of driving laser. 机械控制系统负责控制激光的入射角度和入射位置。
The calculation results show that: in single injection, the changes of common rail pressure and injection angle have greatly affected the three targets above. 计算结果表明:单次喷射时,共轨压力和喷油提前角变化对最大压力升高率、最大爆发压力、放热率均有较大影响,喷油提前角的变化相对影响较大。
Different forms of injection cone and different injection cone angle have little influence on current heaters. 油嘴的喷油锥体形式及喷油锥角对现用加热器的性能影响不大。