查询词典 Diesel

For Diesel/Gas dual-fuel engine, commixing combustion of gas fuel and diesel in cylinder results in some problems, as economical performance and emissions of engine become worse at light load and knocking combustion at heavy load and so on.

由于柴油和气体燃料的不同物化和燃烧特性，给双燃料发动机带来一些问题，如小负荷时发动机的经济性和排放不好，大负荷工况下易爆震等。

A study of smoke at full load from LPG-diesel engine with different igniting diesel quantities is also done.

此外在优选的压缩比下进行了不同引燃油量的全负荷烟度排放试验。

In Brazil, bioethanol cars (bioethanol is the petrol alternative, whereas biodiesel is the diesel alternative) have been outselling petrol vehicles and the same for Sweden where the Ford flex-fuel model outsells both the diesel and petrol variants.

在巴西，生物乙醇车（生物乙醇是汽油的替代，而生物柴油是柴油的替代）已超过了汽油车，并同时为瑞典，福特灵活燃料示范outsells双方柴油和汽油变种。

ABSTRACT At the beginning of 1990's, with the voice of emission control in the mediumspeed and heavy duty diesel field gathering up increasingly and the rule upbuilt, the research on applying electronic control injection technique in the medium-speed and heavy duty diesel has been put up in some corporations.

九十年代初，随着中速大功率柴油机领域内排放控制呼声的日益高涨和法规的建立以及在小型高速机上电控技术的成熟发展，一些厂家便开始了电控喷射技术在中速大功率柴油机上的应用研究工作。

The main products are various types of ships below 10,000DWT, big unit of metal structure, high, medium and low speed diesel engines of big horse-power, spare parts of the diesel engines, marine steering gears, mooring winches, windlasses, deck cranes, big size forgings and castings, shafts, propellers, anchors and anchor chains, acoustic devices, optical instruments, special equipment for shipbuilding, paper machines, metallurgical machinery, cement machinery, textile, machinery, hydro-power station equipment, petrochemical equipment, various pressure vessels ranging form I, II, III, hydraulic cylinders, titanium alloy products, rubber-products, plastic injection molding machines, pad print machines, alternators and generating sets, motor-cycles, valves, electrodes, catholic protection anodes, hand tools etc.

公司所属企业生产的主要产品有万吨级以下的各类型船舶、大型金属结构件、高、中、低速大功率柴油机、柴油机零备件、船用舵机、锚铰机、克令吊、大型锻件、大型铸件、轴系、推进器、锚及锚链、水声仪器、光学仪器、造船专用设备、造纸机械、冶金机械、水泥机械、纺织机械、水电站设备、石油化工设备、I、II 、III类各种压力容器、液压油缸、钛合金制品、橡胶制品、注塑机、移印机、发电机、摩托车、阀门、电焊条、牺牲阳极、手工具等。

In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.

本文中将上述理论方法成功地应用到故障诊断中去，提出了几点创新性的诊断方法；提出了一种齿轮磨损故障诊断的新方法，该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断，并通过与传统的频域诊断方法的比较，揭示出齿轮振动中存在的明显的非线性与非平稳特征，说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果；提出了一种轴承故障诊断的新方法，该方法利用ATVFD分解与Hilbert变换进行包络解调，并对解调得到的包络信号进行时频域分析，可以实现更加准确轴承故障诊断，说明了故障对载波信号的调制往往也是非平稳与非线性的；提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法，柴油机汽缸压力的变化是柴油机故障诊断的重要参数，利用振动方法可大大简化汽缸压力的检测过程，该方法也是综合利用ATVFD分解与时频域分析方法实现的。

By analyzing the reasons for the burning of the connecting rod bush of 12V240ZJ diesel engine,this paper takes effective measures to prevent the burning of diesel engine axle bush,and discusses how to improve the reliability of the engine operation.

通过对12V240ZJ型柴油机连杆瓦烧损原因分析，采取了防止柴油机轴瓦烧损故的有效措施，并对如何提高机车运转的可靠性进行了探讨。

Our products include EM、HT series Diesel Fuel Injection Pump Test Bench, Common Rail Injector Test Bench, EDC Electronic Tester, Diesel Electronic Monomer Pump Test Bench, Nozzle Tester, Tools for pump and so on.

公司拥有雄厚的技术力量、先进的设备和科学的管理经验，同时还与国内多家专业院所和著名的学府合作，并积极引进国外先进的技术、工艺和主要元器件以提高产品的质量和档次。

Exhaust brake valve is mainly used on diesel engine vehicle because the compression ratio of diesel engine is bigger, and the deceleration effect is obvious as a air compressor.

排气制动阀主要用于柴油车，因为发动机压缩比较大，作为空压机，其减速效果较明显。

The experimental results show that most of the diesel particulates are wad-shaped and chain-shaped and composed mainly of organic compounds or carbon particles covered with organic compounds. The peak value of the diesel particle size distribution is about 40 nm. In the exhaust gas, the PM concentration was 32. 6mg/m~3～143.6mg/m~3, NO_x 208 × 10~(-6)～ 568×10~(-6), SO_2 18 × 10~(-6) and HC about 16 × 10~(-6)..

实验结果表明，颗粒物大多呈絮状及链状形态，其构成主要为有机物或为有机物所覆盖的碳微粒，粒径分布峰值约为40nm；柴油机废气中颗粒物浓度为32.6mg／m~3～143.6mg／m~3，NO_x浓度为208×10~(-6)～568×10~(-6)，SO_2和HC化合物浓度分别为18×10~(-6)和16×10~(-6)。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。