查询词典 fuel-oil

Aimming at the fuel control requirement of micro-turbojet,the automobile's electric fuel pump with adaptable improvement is chosen as fuel-feed system.The performance of fuel pump and the technical difficulty of flux control as the speed of pump doesn't be measured are analyzed.Using Philips 83C552 MCU as the main control chip,the system adopts voltage negative feedback combined current compensation instead of rotation speed negative feedback and a PWM convertor to design the flux closed loop control system.

针对微型涡喷发动机的燃油控制要求，选用汽车用电动油泵进行适应性改进作为供油执行装置，详细分析了电动油泵的特性及泵转速无法测量情况下流量控制的技术难点，并以83C552单片机为核心，采用电压负反馈加电流补偿代替转速负反馈、电机通过PWM驱动的方法设计电动油泵流量闭环控制系统。

The paper presents a way that on a diesel engine the fuel ethanol is used blended with gasoline as its additive. On the base of analyzing the physical, chemical and mixing proportion characteristics of ethanol-diesel-gasoline blended fuel, combustion characteristic and the effect on diesel engine performance using the blended fuel with different proportional component are studied on a 135 diesel engine. At the same time, the effect on the diesel engine performance and combustion characteristics using the blend fuel are also studied under different diesel engine parameter.

本文阐述了在柴油机上以汽油为助溶剂应用燃料乙醇的一种方法，在分析乙醇-柴油-汽油混合燃料的物化特性和配比特性的基础上，试验研究了在135柴油机上燃用不同比例的混合燃料对柴油机性能的影响及其燃烧特性；同时，还研究了在不同的柴油机参数下应用混合燃料对柴油机性能和排放特性的影响。

At present, with the automotive and electronic industrial technology of rapid development, the use of the car getting higher and higher performance requirements, the electronically controlled fuel injection technology in the car on a wide range of applications, to reduce fuel consumption and reduce environmental pollution requirements of the increasingly strong electronic fuel injection system to replace the traditional carburetor is a foregone conclusion, for the fittings to meet the needs of the market in June 2003 the company started to develop my EFI system with some fittings and matching engine plant, while the introduction of Marelli, Delphi, Motorola, United Electronics, Mitsubishi Electronic Fuel Injection System complete set of fittings (for: Jinbei, ruichi,ó, the Great Wall pickup, Chinese, Zun Chi, Chun-Jie, Haversian, Seyfert, Chery, Tiggo, ZTE, Tai Di , dawn, landscape sea lions, the South East Series EFI models fittings and so on) the rapid sales network covering the domestic market fittings.

目前，随着汽车及电子工业技术的高速发展，对汽车的使用性能要求越来越高，电子控制燃油喷射技术在汽车上的广泛应用，对降低汽车耗油量和减少环境污染的要求日趋强烈，以电子燃油喷射系统取代传统的化油器已成定局，为满足配件市场的需求2003年6月我公司开始研制电喷系统配件并与部分发动机厂配套，同时引进马瑞利、德尔福、摩托罗拉、联合电子、三菱全套电喷系统配件（适用：金杯海狮、锐驰、阁瑞斯、长城皮卡、中华、尊驰、骏捷、哈弗、赛弗、奇瑞、瑞虎、中兴、大迪、曙光、风景海狮、东南系列等车型的电喷配件）销售网络迅速覆盖了国内配件市场。

The results show that when the cathode humidified temperature increase, the humidification of membrane and fuel cell performance improved at lower current density, while the saturation in diffusion layer increase and the performance decreases at higher current density. Humidification of membrane and fuel cell performance improved when the anode humidified temperature increase, the saturation in diffusion layer decrease and fuel cell performance improved when the fuel cell working temperature increase, the resistance of diffusion layer decrease and the performance improved when the porosity largen. At last, the simulation results are compared with the experimental results and they are basically the same.

结果表明随阴极加湿温度的提高，在低电流密度运行时膜的润湿条件改善，燃料电池性能提高，在高电流密度运行时扩散层中液态饱和度增加，燃料电池性能下降；随阳极加湿温度的提高，膜的润湿条件改善，燃料电池性能提高；随燃料电池运行温度的提高，扩散层中液态饱和度下降，燃料电池性能提高；随气体扩散层孔隙率增加，气体扩散层阻力减小，燃料电池性能提高。

A type of high-performance fuel-rich propellant for the unchoked ducted rocket has been developed. The burning rates of the fuel-rich propellant are greater then 2mm/s at 0.5MPa, the greatest one is up to 4. 05mm/s. The burning-rate exponent is greater than 0.5, the highest one reaches 0.58. The fuel-rich propellant grain can combust steadily in the gas generator at 0.226MPa. The uniaxial mechanical properties and the processability of the fuel-rich propellant are good.

研制了一类用于非壅塞固体火箭冲压发动机的高性能铝镁贫氧推进剂：0.5MPa下燃速高于2mm/s，最高者达4.05mm/s；燃速压强指数高于0.5，最高者达0.58；直连式实验时，在0.226MPa下燃烧稳定；具有良好的力学性能和工艺性能。

By regression of experimental data, therules of the linkage between these factors, which will provide a theoretical basis for designing BBP with different scales.3 Using thermal analysis technology and dynamic thermogravimetry, the paper studies combustion kinetic characteristics of 3 types of agricultural crops at different rate of temperature rise, and thus, achieved dynamic parameters of these fuels at different rate of temperature, established dynamic model of straw combustion, which reflects the dynamic process in the fast combustion area.4 Characteristics of straw briquette combustion was experimented, focusing on the impact of straw type, temperature, air supply, and density, diameter, and weight of briquette on the combustion speed, and the following conclusions were drawn:(1) combustion of straw briquette fuel is static permeation diffusion combustion;(2) temperature has a larger impact on the speed of straw briquette combustion than air supply; the higher the combustion temperature is, the faster volatilizable component separates out, and the less steady the combustion is;(3) density of briquette fuel has impact on the speed of volatilizable component separation and therefore the combustion speed;(4) increase of diameter and weight of briquette fuel increases the average combustion speed in the initial stage, and that in the later stages is comparatively steady;(5) the proportion of volatilizable component in straw briquette fuel is high, therefore, the temperature control during combustion under the rational ventilation condition is essential to ensure its safe combustion.5 Using the above-mentioned results of experiments and theoretical analysis, and based on thought of hydraulic driven and bi-direction compression, the hydraulic system and compression parts of the HBP BBP are re-designed in terms of industrialization.

利用热分析技术，采用动态热重实验法，对我国的三大农作物秸秆在不同升温速率下的燃烧动力学特性进行了较系统的研究。得到了各原料在不同升温速率下的动力学参数；建立了秸秆燃烧的动力学模型，该模型反映了秸秆迅速燃烧区的动力学过程。 4 对秸秆成型燃料的燃烧特性进行了试验研究。着重研究了秸秆河南农业大学博士学位论文巫的种类、温度、空气供给量、成型燃料密度、直径、质量对成型燃料燃烧速度的影响并得出如下主要结论：①秸秆成型燃料的燃烧方式属于静态渗透式扩散燃烧。②秸秆成型燃料燃烧速度受温度的影响大于通风量燃烧速度的影响：燃烧温度越高，挥发分析出速度越快，燃烧平稳性愈差。③成型燃料密度影响成型燃料挥发分的析出速度，影响燃烧速度。④成型燃料直径和质量的增加，使得燃烧初期的平均燃烧速度增大，中后期的平均燃烧速度相对平稳。⑤秸秆成型燃料含挥发分比例高，因此合理配风下的控温燃烧是保证其完全燃烧的关键。 5运用已取得的试验和理论分析结果，以液压驱动、双向成型为基础，从产业化的角度对HBP型成型机进行了液压系统和成型部件的改进设计；同时采用了二级预压机构，使该成型机的生产率达到 500kg.hd；单位能耗 60kwh。上'左右，磨损件修复周期 300小时左右，基本解决了影响生物质固化技术在国内推广的技术难题。

We classified the forest fuel and studied the fuel spatial distribution based on forest inventory and sample plots. Vertical and horizontal distribution of fuel is calculated from sample plots and tree biomass equation. Based on fuel distribution, wind simulation and DEM, fire intensity and effective shaded fuelbreak width are calculated under the condition of crown fire occurrence.

根据历史气象数据确定当地平均最大风速平均值为3.6m/s，平均最大风速的最大值为14m/s，在此情景下，结合DEM数据和可燃物数据对研究区域的林火强度进行计算，并对防火林带的有效参数进行确定。

The elution is caused by a fuel having a high-concentration of at least 2 M or the elution of perfluorosulfonic-acid polymer in a fuel pole into a fuel at an operation temperature of at least 80 DEG C, and an electrode catalyst elutes into a fuel to deteriorate characteristics.

溶出是由于在2M以上的高浓度燃料中和80℃以上的运行温度下，燃料极中的全氟磺酸聚合物溶出到燃料中而产生的，电极催化剂溶出到燃料中而导致特性恶化。

The fuel tank assembly consists of: the fuel tank, fuel pump module assembly, fuel pump module locknut/gasket, and rollover valve (refer to Group 25, Emission Control System for rollover valve information).

油箱组合包含：油箱，油泵模组组件，油泵模组锁定螺帽／垫圈，和逆止阀(请参阅单元25&排放控制系统&来获取逆止阀资讯)。

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。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。