In order to improve power performance, save energy, and reduce exhaust emission of the coal bed methane engine, the accuracy of air-fuel ratio must be improved.
为了改善煤层气发动机的动力性、经济性和排放性，必须提高发动机空燃比的控制精度。
In addition, the worm and worm groove depth of the pressure increased, in the end, reduce exhaust gate-rotor from the single slot, depth is zero, it does not exist.
此外，蜗杆的蜗杆槽深度随压力的增高而减少，在排气结束，星轮齿脱离单槽时，深度为零，故不存在余隙容积。
For small non-road diesel engines, optimized matching among the fuel injection, in-cylinder air movement and the combustion chamber is an important means to reduce exhaust emissions.
对于中小型非道路用柴油机而言，优化油、气、燃烧室三者之间的匹配是降低尾气排放最重要的手段之一。
The reduction of exhaust system noise is the key to the reduction of automobile noise. At present, the main method to reduce exhaust noise is by setting muffler in automobile exhaust system.
减小排气噪声是降低汽车噪声的关键，目前在排气系统中安装排气消声器是减少排气噪声的主要方法。
Adding detergent in gasoline can prevent fuel supply system and air intake system of gasoline engine from forming deposits, reduce exhaust emissions, and improve brake specific fuel consumption.
在汽油中添加清净剂可以防止汽油机燃料系统及进气系统沉积物的形成，减少排放污染，降低燃油消耗。
Combustion chamber deposits increase exhaust emissions. Oils must be formulated to reduce such deposits.
燃烧室积碳提高了排气污染。机油必须被注入以减少这类沉积。
They are of the hygroscopic type able to recover winter moisture from the exhaust air and thus reduce the load on the supply air humidifiers.
它们是吸湿型的，能够减缓冬季排气所带来的湿气，因此降低对辅助空气吸湿器的负担。
The latest style large capacity muffle with special structure has reduced the noise of exhaust gas. A larger air filter is employed to reduce the noise of suction gas.
新型大容量和特殊内部构造消音器降低了排气噪音。采用较大的空气滤器减少了进气噪音。
This paper describes the research how to reduce the exhaust emissions of B series diesel engine of Dongfeng Comins.
本文主要对东风康明斯B系列柴油机如何降低发动机尾气排放进行了研究。
This paper briefly introduces a new lean combustion system which can effectively reduce fuel consumption rate and exhaust emissions.
简要介绍了一种新型的汽油机的稀薄燃烧系统，可以有效地降低燃油消耗率和废气排放。
This paper emphatically describes how to lift its fume exhaust temperature under low load running of a boiler so as to reduce low temperature corrosion.
重点论述了在锅炉低负荷运行状态下提高排烟温度的方法，以达到减少低温腐蚀的目的。
This air valve is automatic device, it can exhaust air in the pipe line to reduce energy loss of system.
本阀属于自动阀类，能自动排除管路内的气体，减少管路系统的能量损失。
Fuel saving technology adopted in motor vehicle can reduce pollution of exhaust em mission and fuel evaporation.
采用此技术可以减少汽车的尾气排放污染和燃料的挥发污染。
To take measures against the traffic exhaust in advance based on the air pollution trend can reduce the difficulty and the cost of controlling the air pollution in Chongqing in the future.
根据其大气污染趋势，提前对交通尾气污染采取措施，可降低重庆市未来大气污染治理的难度与成本。
During the recovery of heat energy from the cylinder exhaust of diesel engines, the installation can greatly reduce noise pollution and mostly eliminate exhaust lampblack.
当它对柴油发动机汽缸排气余热回收时，大大地降低了噪声，且排气中油烟亦基本消除。
The expander can reduce exergy loss in pressure reducing process, and the utilization of cryogenic exergy of air-powered engine exhaust is useful to improve the total energy efficiency.
在能量转移系统中，应该采用容积膨胀减压方式减少减压环节的可用能损失；合理利用低温排气的冷量火用可以提高气动发动机能量转移系统的总能量效率。
The fuel an conserve energy, reduce the concentration of co, HC of exhaust emissions and the noise emission, so the environmental condition is improved.
验证了该燃料不仅节约能源，而且减少了废气排放中的CO、HC污染物，并降低了噪声。
The experiment results showed that, at elevant environmental temperature, the exhaust fan can reduce effectively the battery temperature and increase the battery capacity.
试验结果表明：在环境温度较高时，这种散热风扇能有效地降低电池组的温度，提高电池组容量。
In view of the factors that how to reduce significantly the exhaust temperature, prevent water pour backward and reduce the exhaust noise, the present theses presented a water spraying silencer.
针对如何大幅度降低排气温度并兼顾防治海水倒灌和削减排气噪声，本文提出了一种水喷淋消声器设计方案。
To satisfy the more and more strict emission criterion, it is necessary to take measures to reduce the exhaust emissions of non-road diesel engine.
为了满足日益严格的排放标准，有必要采取有效的措施来降低非道路用柴油机的废气排放。
The car noise admission and exhaust system of the engine is a very important problem, therefore we must adopt innovative technic to reduce noise.
汽车发动机进排气系统的噪声在发动机总噪声中占有重要分量，因此需要积极采取降噪措施。
The released vehicle exhaust was mainly sources of the lead pollution on the environmental air. The unleaded gasoline may reduce the lead pollution in environmental air of the vehicle exhaust release.
论述了环境空气中铅染的主要来源是机动车排放的尾气，推广使用无铅汽油可明显降低机动车尾气排放对环境空气中铅污染。
For a rocket with typical four-nozzles , using turbine exhaust scheme could greatly reduce the heat flux on the base plate. This is a successful example of impulse wind tunnel application.
典型的四喷管火箭底部挡板采用涡轮废气排气方案能大大减少底部热流，这是脉冲式风洞的成功应用成果；
The change of back-flow pressure, deformed exhaust hole, pre-inflow structure and so on can be adopted to reduce back-flow impact.
根据回流压力的变化规律，采取异型排气口、预进气结构等措施减小回流冲击。
The close-loop EGI system with threeway catalyst has been verified efficiently to reduce the harmful ingredient in exhaust gas of car.
在汽车中应用带有三元催化剂的闭环电喷系统可以有效降低汽车尾气中的有害成分。
The calculation result indicates that choose the appropriate compression ratio, the Angle of fuel injection can improve the cylinder burn and reduce the fuel exhaust.
计算结果表明，选择合适的压缩比、喷油提前角，可以改善缸内的燃烧过程，降低燃油消耗率。
Some measures to reduce and control the transient exhaust emission of vehicle diesel engines and the results were also introduced.
文中还讨论了控制和降低车用柴油机瞬态工况排放的一些措施及其效果。
Some measures to reduce and control the transient exhaust emission of vehicle diesel engines and the results were also introduced.
文中还讨论了控制和降低车用柴油机瞬态工况排放的一些措施及其效果。
应用推荐