喷射燃料

In this paper, based on the specific CNG engine parameters and characteristics, the influence of the injection timing, ignition energy and lean combustion for the engine is tested, in order to explore the control rules of fuel injection, ignition energy and lean combustion and then draw the following conclusions: small injection advance angle of electronic controlled injection CNG engine is optimum

文章根据天然气发动机的具体参数和特性，探索电控喷射CNG发动机在燃料喷射、点火能量和稀燃等方面的控制规律，确定最优的控制参数，开展了喷射定时、点火能量及稀薄燃料等参数对发动机性能影响的试验研究工作，并根据试验结果分析，得出了以下结论：电控喷射WT615CNG发动机燃料喷射提前角要小些为宜

The purpose of the invetion is to effectively stop the blowoff of an injected fuel into an exhaust port when the opening and closing of valves are overlapped with each other by properly setting the fuel injection direction of a fuel injection device mounted so as to face the intake passage of an internal combustion engine.

提供一种内燃机的进气结构，适当设定被安装成对着内燃机的进气通道的燃料喷射装置的燃料喷射方向，有效防止在气门开闭动作时间的重合期间朝向排气口的喷射燃料的喷泄。

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

In order to research the spray of LPG/diesel mixed fuel, it is the first time that this work studied the atomization characteristics of LPG/diesel, including spray angle, droplet size distribution, mean diameter, typical diameter, diffusion degree and impenetrate distance by using a high spatial resolution digital camera. At the same time, comparison of these characteristics of diesel and two kinds of LPG/diesel mixed fuel was taken.

为了探讨LPG／柴油混合燃料喷射的雾化效果，本文首次采用高分辨率数码照相机试验研究了柴油和LPG／柴油混合燃料的喷雾特性，包括喷雾锥角、贯穿距离、液滴尺寸分布、平均直径、特征直径和发散度和对雾化效果的影响；并比较了纯柴油和不同混合比例的LPG／柴油混合燃料的雾化特性，结果表明：柴油中掺混一定量的LPG有利于改善雾化。

The plasma igniter with pilot-hydrogen and high-power plasma igniter are adopted in the direct-connected experiment of supersonic combustor.

采用等离子体点火、凹槽火焰稳定器和从壁面喷射燃料方式，实现了煤油的可靠点火和稳定燃烧。

These type of valve applications are gas applications, as well as jet fuel systems.

这些类型的阀门应用是气体应用，或是喷射燃料应用。

The authors studied the electronic control injection fuel-feed system and CDI digital ignition SCM control system implemented on the motor engine by liquefied petroleum gas and optimized electronic control parameters in engine dais experiment.

研究了液化石油气在摩托车发动机上实现电控喷射燃料供给和CDI数字点火的单片机控制系统，并在发动机台架实验中优化电控参数。

Successful ethylene ignition and sustained main stream combustion is achieved with normal fuel injection and taking hydrogen as pilot flame.

采用从壁面垂直主流喷射燃料和以氢作为先锋火焰，实现了乙烯燃料的可靠点火和稳定燃烧。

It is the first time to compare the emission of the premixing LPG/diesel dual fuel engine with that of the mixing injection LPG/diesel dual fuel engine. The results state that the NO〓 emission of the premixing dual fuel engine is lower than that of mixing injection dual fuel engine in the whole loads, but the emission of HC and CO is reverse.

研究结果表明：在整个负荷范围内，预混进气双燃料发动机的N0〓排放明显低于混合喷射双燃料发动机；混合喷射双燃料发动机的HC和CO排放较低；在小负荷二者的烟度相差不大，但在大负荷预混进气双燃料发动机的烟度较低。

The invention relates to a fuel injection valve for fuel injection systems of internal combustion engines.

本发明涉及一种用于内燃机的燃料喷射装置的燃料喷射阀。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失