柴油机

With the development of computer and automatic control technology as well as the increasing of labor force, lots of unattended equipments have been used widely in industry, agriculture, environment and national defense domain, such as fixed transformer substation, floating transformer substation, oil extractor, generator set of diesel engine, hydrographic monitoring equipment and so on.

随着计算机技术和自动控制技术的发展，以及劳动力成本的不断提高，在工农业生产、环境监视及国防领域有大量的设备采用无人值守方式运行，如固定变电站、移动变电站、抽油机、柴油机发电机组、水文监测设备等，保证这些无人值守设备的安全、正常运行对国民经济建设具有重要意义。

Locomotive diesel engine ; Turbo-supercharger ; Bearing ; Oil seal ; Nozzle ring ; Structure and improvement

机车柴油机；废气涡轮增压器；轴承；油封；喷嘴环；结构与改进

In this paper, in order to fill this blank, an integrated practical fault diagnosissystem was researched and developed.

本文针对这种需求，研究开发了大功率柴油机综合故障诊断系统。

The business of the company is professionally on ship set facilities, various pumps, AC/DC motors and electric appliances for various ships, accessories for 300 and imported diesel engines, lighting products of ships, and bulbs, anchors, cable, thermometers, pressure gauges, lifesaving products, riggings, etc.

专业经营船舶成套设备、各类船用水泵、交直流电机及电器，300及进口柴油机配件、船用各种灯具及灯泡、锚具、缆绳、温度计、压力、救生、卸扣索具等产品。

The engine has the two kinds petrol engine and diesel mainly.

发动机主要有汽油机和柴油机两种。

In order to optimize the engine, working principle of the single-cylinder liquefied petroleum gas engine based on the ZS1100 diesel engine was studied. The power performance and working process of the LPG engine was investigates by the testing and simulation computation.

为了弄清以ZS1100柴油机为基础开发的单缸液化石油气发动机的工作原理，以利于进一步改进，以试验和模拟计算结合的方法，研究了该机的动力性能和工作过程。

In diesel engine cylinder, the piston part of the cycle in the compressed gases, and in another part of the work cycle of the combustion gas mixture within the cylinder so the piston top surface expansion high pressure (about 116 ~ 120Kgf/cm2)°under high temperature (about 569°C) gas role, and the pressure through the piston pin, connecting rod to the crankshaft.

在柴油机气缸内，活塞在一部分工作循环压缩气体，而在另一部分工作循环气缸内混合气体燃烧膨胀使活塞顶面承受高温（约569°C）高压（约116～120Kgf/cm2）气体的作用，并把压力通过活塞销、连杆传给曲轴。

The frequency characteristics of instant- taneous signal of main abnormalities in diesesl engines,including valve sound, piston pin sound,connecting rod bearing sound and sound from the main bearing of crankshaft are analyzed.

从使用角度出发，采用频域分析法，分析了柴油机中气门、活塞销、连杆轴承、曲轴主轴承等部位主要异响的瞬态信号频率特征。

To burning the heavy oil in diesel locomotive, the injection unit must be adjusted, such as the clearance of piston, the spring character of unilateralism valve, the needle valve lift of injector and so on. At the same time, the parameter of injection, such as the injection advace angle, the injection time, should be adjusted according to the actual instance.

针对燃用重柴油的实际，需对柴油机喷射元件，如：喷油泵柱塞偶件间隙、出油阀弹簧刚度、喷油器针阀升程、及喷射参数，如：喷油提前角、喷油定时等均需作出调整，本文论述了具体的调整方法和依据。

The NOx and CO〓 emissions are reduced by more than 15%. But the Total Hydrocarbon and CO emissions increase at low load. In the dual fuel engine, premixing combustion is dominant. Its ignition delay and combustion duration are longer than those of the diesel engine.

双燃料发动机在中高负荷下的燃烧与原柴油机有很大不同，预混燃烧占主导地位，滞燃期和燃烧持续期较长，最大爆发压力及最大压力变化率较原机低，发动机运转柔和，噪声较低。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。