查询词典 diesel engine

Based on the analyses of the chemical and the physical characteristics of hydrogen peroxide, the effect mechanism of H2O2 additive on diesel combustion was put forward and proved by the heat release rate of the single-cylinder engine test. The experimental results on 135 diesel engine bench show that H2O2 additive is effective to improve diesel combustion, and the specific fuel consumption, particulate matter and NO are decreased obviously.

对过氧化氢的化学及物理特性进行了分析，建立了过氧化氢组液影响内燃机燃烧过程的机理模型，并且通过放热规律进行了试验验证。135单缸机的试验结果表明，过氧化氢组液的效果相当显著，可以同时降低油耗以及碳烟和NO的排放。

Since electronic diesel system performs high accuracy as well as rapid respond and is suitable to various algorithms, and has obvious effect on improving of derivability and emissions for diesel engine, electronic control technique has been the main trendy in diesel engine field.

由于柴油机电控系统具有良好的控制精度、快速的响应和灵活的控制算法，在改善发动机动力性、经济性和排放性等方面能取得明显的效果，柴油机电控技术已经成为当今柴油机领域的发展热点。

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。

So the corn oil methyl ester biodiesel used in this study that is made from transesterification reaction. After diesel engine experiment, experimental results demonstrated that using corn oil methyl ester biodiesel, which is based on no influence of engine performance has higher BSFC and the concentration of than premium diesel about 11.99% and 11.06%, respectively. Moreover, its emission concentration of Smoke and HC are lower than premium diesel about 52.47% and 16.51%, respectively.

故本研究使用甲酯化反应的玉米油甲酯生质柴油，经内燃机实验后所得结果得知，使用玉米油甲酯生质柴油为燃料时，在不影响引擎性能的情形下，其燃料消耗率及NOX排放浓度比石化高级柴油分别高约11.99％和11.06％，而Smoke和HC的排放浓度分别低约52.47％和16.51％。

So this paper takes the middle speed and small power of ship diesel engine as research object, and with the title of the matching research of ship diesel engine with screw propeller and the optimized design of cooling system to research the matching design of ship power system. And the main content of this paper is as the following:(1) The establishment of matching calculation platform of screw propeller and diesel engine. This paper starts with the analysis of balance of ship energy, and gets energy transfer relationship between ship diesel engine and screw propeller.

为此，本论文以中速小功率船舶柴油机为研究对象，以船舶机桨匹配与冷却系统优化设计为题进行船舶动力系统匹配设计研究，主要内容有：(1)船舶机桨匹配设计计算平台的建立本论文基于船舶能量平衡问题分析，推导螺旋桨与船舶柴油机之间能量传递关系，分析螺旋桨与柴油机的匹配设计。

The test results indicated that the precision of thetorque Sensor on the cool-starting resistance torque and starting rotate speed of the diesel engine can respectively reach 0.6 %and 0.5%, which completely satisfy the cool-starting requirements of the diesel engine at low temperature; the performance curvesof the cool-starting resistance torque for diesel engine on the condition of the different low temperature were accurately obtained,and the variation rules of the performance parameters about the starting rotate speed and the starting power for the diesel enginewere estimated, whichwas the academic basis on the optimalmatching of the cool-starting parts about the diesel engine, the elec-tromotor and storage battery and so on.

结果表明：转矩传感器用来测试低温起动阻力矩和转速的准确度分别达到0·6%、0·5%，满足柴油机低温起动系统测试指标的要求；准确地测得了在不同转速和不同温度下的阻力矩性能曲线，同时也能判断出柴油机的起动转速和起动功率等性能参数的变化趋势及规律，为柴油机、电动机和蓄电池等低温起动部件的优化匹配提供了理论依据。

When left when the test-drive after repair in shop main engine is adding this ship to 540r/min, supercharger occurrence asthma brace up phenomenon, rotate speed lifts slightly again, noise shakes very big, smoke evacuation temperature is normal, hair of on the high side of temperature of air inlet duct is very hot, as good as of smoke evacuation smoke constant, supercharger rotor rotate speed and the rotate speed of right leader supercharger that work normally comparative. 2 breakdown analyse this model diesel engine supercharger breathes heavily brace up the reason has the following sides. Bearing of 1 supercharger rotor damages, bring about on the low side of supercharger rotor rotate speed or wave motion, make inadequacy of compressor part air feed and diesel engine and its demand do not match, bring about air current not to stabilize generation to breathe heavily brace up. 2 diesel engine offers oil, match gas to time forbid, match gas, draw well time and disorder, bring about supercharger to breathe heavily brace up. 3 supercharger nozzle jams, cause smoke evacuation not free, circumfluence of exhaust stroke waste gas, enter jackknife of new energy of life with the below one stroke that take energy of life, produce air current to hit generation to breathe heavily brace up. Canal of 4 smoke evacuation jams, smoke evacuation not free, bring about waste gas circumfluence, hit generation of new energy of life to breathe heavily brace up. 5 jams into gas mouth, enter gas inadequacy, generation breathes heavily brace up. 3 trouble removal are based on above analysis, adopt the following measure to remove trouble.

该舰在厂修后试车时左主机在加至540r/min时，增压器出现喘振现象，转速再略升高，声响震动很大，排烟温度正常，进气管温度偏高发烫，排烟烟色无异常，增压器转子转速和正常工作的右主机增压器转速相当。2故障分析该型柴油机增压器喘振的原因有以下几个方面。1增压器转子轴承损坏，导致增压器转子转速偏低或波动，使得压气机部分供气不足和柴油机及其需求不匹配，导致气流不稳定产生喘振。2柴油机供油、配气定时不准，配气、发火定时紊乱，导致增压器喘振。3增压器喷嘴堵塞，导致排烟不畅，排气冲程废气回流，和下一进气冲程进新气重叠，发生气流冲撞产生喘振。4排烟管堵塞，排烟不畅，导致废气回流，冲撞新气产生喘振。5进气口堵塞，进气不足，产生喘振。3故障排除基于以上分析，采取以下办法排除故障。

To achieve high reliability rig build momentum across the company Petroleum Chi Chai attached great importance to develop a detailed implementation plan: first, optimizing the current oil market, the popular 4012-based long-stroke diesel engine supporting 1000kW diesel generating sets to meet our 7000 meters below the oil drilling rig for electric power demand in 2009 in the second half on the market; second, strengthen the 4012 Long-stroke diesel engine, and the supporting 1100kW diesel generator sets, China's oil industry to meet the full demand for electric power drill, the end of 2009 the completion of prototype evaluation.

为实现打造高可靠性钻机动力，中油济柴公司上下高度重视，制定详细的实施计划：第一步，优化目前在油田市场广受欢迎的4012型长冲程柴油机配套的1000kW 柴油发电机组，满足我国石油钻探7000米以下电动钻机对动力的需求，2009年下半年投放市场；第二步，强化4012型长冲程柴油机，配套1100kW 柴油发电机组，全面满足我国石油行业电动钻机动力的需求，2009年年底完成样机评定。

The company mainly produces oil glib supporting mechanical components, such as the dust cover, lubricating oil into the tubing connector kits, oil spill pipe connection kits, into the tubing connector kit Valve damping tight cap Valve cap tight, tight Valve cap -- ring components, component pins, screw plug, as well as the bearings and other components for the tractor factory in Shanghai, Shanghai Diesel Engine Co., Ltd., Weichai Power Co., Ltd., Wuxi Diesel Engine Factory, Dongfeng Chaoyang Diesel Engine Co., Ltd., ASIMCO Diesel pumps and other large manufacturing enterprises glib package has won the customers for further cooperation and lay a good foundation.

公司主要生产油泵油嘴配套机械部件，如防尘盖，润滑油进油管接头套，溢油管接头套，进油管接头套，阻尼出油阀紧帽，出油阀紧帽，出油阀紧帽-密封圈组件，定位销部件，螺堵，以及轴承等部件，为上海拖拉机厂，上海柴油机股份有限公司，潍柴动力股份有限公司，无锡柴油机厂，东风朝阳柴油机有限责任有限公司，亚新科等大型柴油机油泵油嘴生产企业配套，赢得了客户的好评，并为进一步的合作打下良好的基础。

The effects of biodiesel blending fuels with different biodiesel fractions on the exhaust emission characteristics of the diesel engine were investigated on a heavyduty automotive electronically controlled highpressure commonrail diesel engine. Five diesel/biodiesel blends were tested according to ESC steadystate 13mode test cycle without modifications of engine construction and parameter adjustment.

针对一台大排量电控高压共轨柴油机，在发动机的结构和参数不作变动和调整的条件下，使用5种生物柴油混合燃料进行ESC稳态排放测试，研究了不同生物柴油含量的混合燃料对柴油机排放特性的影响。

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。