The burning gases can ignite the lean mixture. 燃烧着的气体能点燃稀的混合气。
Mixed gas arc welding The carburetor delivers a rich mixture to the precombustion chamber and a lean mixture to the main cylinder. 化油器将浓混合气输至副燃烧室,将稀混合气输送至主气缸。
Lean burn mixture combustion of gasoline engine is an effective approach for reducing emissions and fuel consumption. 汽油机燃烧稀混合气是降低有害尾气排放、油消耗率的有效途径。
Compared with stoichiometric mixture operation, fuel economy and emissions are remarkably influenced by injection timing when lean mixture is applied. 在发动机燃用稀薄混合气时,喷油定时对排放和经济性的影响较为明显。
The engine will not run well with a lean mixture and may stumble or stall. 使用稀薄的混合气,发动机将不能很好地运转,并会出现加速后坐现象或失速停车现象。
Concentrations and Congener Profiles of PCDDs/ PCDFs in Flue Gas Samples from Oil Type Crematories Lean burn mixture combustion of gasoline engine is an effective approach for reducing emissions and fuel consumption. 燃油式火化机排放烟气中二恶英类污染水平和排放特征汽油机燃烧稀混合气是降低有害尾气排放、油消耗率的有效途径。
Small scale tests and verification tests of magnesia reduction concentrating process for treating rich lean ore mixture from Longshou Mine in Jinchuan were carried out. 对金川镍矿龙首矿混合矿石进行了降镁工艺小型试验和验证试验。
Catalytic Combustion is considered a promising method for the effective combustion of lean fuel-air mixture with minimum emission of NO_x. Experiments and Numerical Analysis of Fuel-Air Mixture Explosion in Confined Spaces 催化燃烧是控制和消除NOx的有效方法。受限空间油气爆炸实验与数值仿真研究
Because of the fast burning of the lean mixture, the stability of the combustion process is increased. 由于混合气的快速燃烧,使燃烧过程的循环变动下降,燃烧滞后期和燃烧持续期都大为缩短。
A super-high-energy ignition device is designed for the ignition of lean mixture. Its ignition energy is 3 to 4 order higher than that of the traditional ignition system. 开发了一套超高能点火装置,其点火能量比传统火花塞点火系统高3~4个数量级。
Effect of Lean and Rich Mixture Operating Time on NO_x Emission from Lean Burn Gasoline Engine with Adsorber-Reduction Catalytic Converter 稀、浓燃状态运行时间对装有吸附还原催化转化器的稀燃汽油机NOx排放的影响
The results show that species dispersion has little influence on the gas temperature and reaction heat for the lean mixture. 结果表明,组分弥散效应对气体温度分布和反应热影响很小;
This is mainly due to shorter ignition delay period, higher combustion rate and lower cycle-to-cycle variation of maximum combustion pressure. especially in lean mixture operation. 其主要原因是甲醇发动机的滞燃期和主燃期短,燃烧速率高,最高燃烧压力循环变动小,尤其在稀混合气下上述特征更为突出。
Moreover, low emissions of HC, CO, CO_2 and NO_x can be realized at lean mixture combustion for natural gas and hydrogen mixtures. 掺氢后可以提高发动机的稀燃极限,在稀燃下可以得到较低的HC、CO、CO2和NOx排放。
When average duration of early stage combustion increase under the conditions of lean mixture, the fluctuation of indicated mean effective pressure rapidly increases. 在稀薄混合气条件下,随着初期燃烧期间平均值的增加平均指示压力的变动急剧上升。
The Cytotoxic Effect of Depleted Uranium Lean Mixture Combustion in Gasoline Engine 贫铀的细胞毒性汽油机稀薄混合气燃烧
Lean Mixture Combustion in Gasoline Engine 汽油机稀薄混合气燃烧
A little amount of hydrogen supplemented to the gasoline-air mixture can extend the flammability limits of the mixture, increase the rate of flame propagation, accelerate the burning velocity of the lean mixture, thus improving the engine fuel economy and emissions. 在汽油&空气混合气中,添加部分氢气,可扩大混合气的着火界限,提高火焰传播速度,加快稀薄混合气的燃烧速度,从而提高发动机的经济性,改善排放特性。
The shape of a BUMP on the plane had significant effects on the formation of a secondary space jet and lean mixture and should be optimized and matched rationally in practical applications. BUMP的形状不同对形成二次空间射流及稀混合气的作用也不相同,在实际应用中应对其进行优化和合理匹配。
An electronically controlled rapid burning system with high-energy, dual-spark plug ignition in a high-speed LPG engine was introduced and lean mixture combustion under steady engine operation was investigated. 介绍了应用于高速单燃料LPG电喷发动机的高能双火花塞快速燃烧系统的组成及其在发动机稳态运行工况的稀燃研究。
Study on the performance of a lean mixture combustion system in a gasoline engine 汽油机快速稀燃系统的性能试验分析
In order to cater to the needs of lean mixture combustion, the energy for ignition should be increased and the discharging time should be lengthened. 为适应稀混合气燃烧,应加大点火能量、延长火花放电时间,所以点火系统采用电感放电模式较好。
Lean pre mixture is formed form pilot injection stage is shorten and combustion rate is quicken. 预喷射形成稀薄预混合气,促进燃油与空气的均匀混合,提高混合气形成质量,缩短主喷射的着火滞燃期,加快燃烧速率。
The engine economical lean mixture range is extended, the engine operates normally at excess air ratio of 1.3; 发动机经济稀混合气区域加宽,能够燃烧过量空气系数为1.3的稀混合气;
It is also found that the air fuel mixture is richer near the combustion chamber wall and becomes leaner gradually from the wall to the combustion chamber center, the stratification concentration from rich to lean of air fuel mixture forms along the direction of air swirl motion. 靠近壁面处燃油浓度最大,向燃烧室中心方向浓度逐渐降低,沿周向、顺涡流方向形成了明显的由浓到稀的分层。
By using two-stage fuel injection and variable induction technology to form a quasi-homogeneous lean mixture, the combustion process is improved with lean burn air fuel ratio limit extended and NOx emission lowered. 应用二次喷油及可变进气技术,形成准均质稀混合气,改善了燃烧过程,扩大了发动机稀燃极限,降低了NOx排放量。
GDI Engine and the Optimum Technique of Lean Mixture Combustion GDI发动机及其稀燃优化技术
Taking the reflector as a center, the spray forms a high concentrated fuel zone, and constantly spreads out to form a lean mixture. 射流油束以反射物为中心,形成高浓度的燃油区域,不断向外扩散,形成稀混合气。
However, due to lean mixture characteristics of slow burning speed, conventional open-chamber gas engines face to many problems such as slow combustion rate, combustion instability, cycle-by-cycle variations and reduction of thermal efficiency, even misfire. 但是由于稀薄混合气燃烧速率慢的特点,采用传统开式燃烧室燃烧系统的气体燃料发动机必然会遇到燃烧速率慢、燃烧不稳定、循环波动大、热效率下降、甚至失火等问题。
The high energy ignition can increase A/ F coefficient and facilitate the combustion of lean fuel mixture. 高能点火可以扩大空燃比,实现超稀混合气燃烧,是实现稀薄燃烧的关键。