发动机效率

但发动机散热成为提高发动机效率的瓶颈之一，传统的冷却液已经逐渐不能满足冷却系统的要求，除了开发更为高效的换热器，开发新型的传热冷却液也成为发展方向之一。

The engine cooling became one of the limits on the improvement of engine efficiency . The traditional coolant cannot meet the demand of engine cooling .

汽车发动机冷却系统是影响发动机效率和安全性的关键因素之一。

Automotive engine cooling system is the key factor of affecting engine efficiency and safety .

提高点燃式甲醇发动机效率的研究

Study on Efficiency Improvement of Spark Ignition Methanol Fuelled Engine

提高无刷双馈电机效率的方法和途径发动机效率电动机效率

The Method and Way to Improve the of Efficiency for Brushless Doubly-Fed Machine

提高发动机效率及延长其使用寿命。

Prolongs engine life and improve running efficiency .

喷管喉部型面对发动机效率的影响

Effects of Nozzle Throat Contour on Motor Efficiency

对气体增压是提高天然气发动机效率的重要途径之一。

Gas supercharging is a major way to improving the efficiency of a gas engine .

在发动机效率低的起动时使用马达，车速上升后将动力切换到发动机。

Starting the engine to use inefficient motors , speed up after power switch to the engine .

这种发动机效率非常高，并且可以从空间站太阳能电极板得到能量。

Such motors are extremely efficient , and can be powered from a station 's solar panels .

尽管相对贵一些，但是这个发动机效率更高，而且不需要经常维修。

Although it is litter expensive , but the efficiency of this engine is better and it no need mend often .

为研究介质的预压缩对脉冲爆轰发动机效率的影响，通过热力学过程效率分析，计算了对可爆介质进行不同程度预压缩的条件下，爆轰过程和爆燃过程机械功输出能力。

To analyze the influence of medium pre compression degree to the efficiency of pulse detonation engines , relations between the pre compression degree and the mechanical power exportation ability in detonation and deflagration processes have been investigated .

本文通过对双泵全功率变量液压系统的单斗液压挖掘机发动机效率、变量泵效率的研究，建立了发动机－变量泵系统共同工作的数学模型。

Through a study in the efficiency of the engine and the variable displacement pump of the dual pump , full power variable displacement hydraulic system on single bucket excavator , a math model for co-operation of engine-variable displacement pump system is established .

内燃机运行时所排出的废气带走了约35%的燃料完全燃烧热量，而目前这部分热量均以废热的形式散失掉了，如何有效的利用这部分热量成为目前提高发动机效率的重要课题。

When the Internal Combustion Engine is running , the exhaust gas take away about 35 % of the oil heat . But now this part of heat is only scattered as waste heat , so how to reuse this part of waste heat effectively becomes a very important issue .

分析了不同LPG质量掺混比对发动机热效率、排放特性和燃烧特性的影响。

It analyzes the effects of LPG blended ratio on the effective heat efficiency , emission performances and combustion characteristics .

结果表明，在柴油中添加DMC，燃料十六烷值降低，发动机热效率提高，烟度减小。

The results show that the fuel cetane number and engine exhaust smoke decrease and engine thermal efficiency improves with adding DMC in diesel fuel .

转矩管理策略以转矩为最主要的控制变量，根据总需求转矩和发动机稳态效率MAP图确定状态切换的条件以及发动机和电动机的目标转矩。

Torque Management Strategy assigns torque as the major control variable and is responsible for the determination of not only state-switch conditions but also the target torque of both engine and motor according to the total torque command and the static engine efficient MAP .

在低负荷工况采用DME／甲醇双燃料会导致过低的发动机热效率，宜燃用单一DME燃料并采用大比例EGR方案来改善热效率。

For light load , low thermal efficiency results from DME / methanol dual fuel , So pureDME with high EGR rate may be a good choice for HCCI operation .

低速大负荷时，生物制气&柴油双燃料发动机充气效率变大，可燃气体在高温下停留时间增加，因此转速降低时虽然最高燃烧温度降低，但此时NOx排放浓度增加。

At low speed and high load the biogas & diesel dual fuel engine has a higher volumetric efficiency , the time of the mixture staying at high temperature level is longer , so even if the maximum combustion temperature is relatively lower , the NO_x emission is still high .

整体运行DECC可以将发动机热效率提高6%以上。

And the thermal efficiency of DECC engine can be improved 6 % higher than the baseline engine generally .

行波热声发动机具有效率高、可靠性好及环保等优点。

Quantitative investigation on Gedeon streaming in traveling wave thermoacoustic engine ;

变推力液体火箭发动机燃烧效率的研究

A study of combustion efficiency for liquid rocket engine with variable thrust

提高沼气柴油双燃料发动机热效率的试验研究

An Experimental Investigation on Increasing Thermal Efficiency of a Dual Fuel-biogas Engine

离子发动机推进剂效率的研究

Study on the Propellant Efficiency of an Ion Motor

影响液体火箭发动机涡轮效率的某些因素分析

Analysis of the effect of factors on the efficiency of liquid rocket turbine

提高发动机抽查效率的探讨

Study on Increasing Spot Check Efficiency of Engine

定期换机油，让发动机全效率运行。

Change the oil regularly to keep the engine ticking over at full efficiency .

提高露天矿大型内燃设备发动机使用效率的方法和途径

Ways to improve the availability of large-size internal combustion engines used in open-pit mines

在对发动机进行效率试验时，应当采取一些预防措施。

While making an efficiency test on an engine , certain precautions should be observed .

进气系压力波动与多缸发动机充气效率-转速特性形态的关系研究

970019 A Study on the Intake Pressure Wave Actions and Volumetric Efficiency Speed Characteristics of Multi Cylinder Engines

任何内燃发动机的效率，因诸多原因，依最终的压缩压力而定。

The efficiency of any internal-combustion engine depends on the final compression pressure for a number of reasons .