1、

Emission control regulations became stricter, while petroleum resource decreased day by day, in order to reduce the fuel consumption of diesel engine and control its emissions in current emission control regulation limit, maybe high-pressure common-rail injecting system will have to be used in diesel engines.

随着石油资源的日渐减少和排放法规的日趋严格,为降低油耗并满足欧Ⅲ及以上的排放标准,柴油机的喷射系统也许不得不采用电控高压共轨喷射系统。

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2、

Test trial result shows that the engine rated power increases by6.8%, its fuel consumption decreases by11.3%. 2 tabs, 6 figs, 8 refs.

地面台架试验表明,基于局部分层模糊逻辑结构的模糊运算产生的喷油控制量是精确的,发动机的最大功率提高了6.8%,耗油率降低了11.3%。

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3、

Aiming at the characteristic of passenger vehicle and taking acceleration time and fuel consumption at mixed work condition as evaluation index, the article applies robust response surface method in power train parameters matching of passenger vehicle, its effectivity is further testified by optimization of practical example.

文章针对乘用车使用特点,以加速时间和混合工况油耗作为评价指标,应用双响应面鲁棒设计理论,对乘用车传动系统参数进行匹配优化,并用实例优化表明其有效性。

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4、

The fuel consumption rate and exhaust emission increased when the fuel temperature surpassed the optimum range, since the combustion was deteriorated by after burning which was caused due to fuel injection angle delay.

但燃油温度过高时,由于实际喷油滞后角增加过大,致使后燃增加,燃烧恶化,燃油消耗率和污染物排放均增加。

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5、

The results of both field test and road simulation dynamometer test on power, fuel consumption and exhaust emission of Honda Insight hybrid electric vehicle ( HEV) in accordance with both national standards and a series of European test cycles are presented.

介绍了本田Insight混合动力电动轿车在实际道路和汽车转鼓试验台上按照国家标准和欧洲的一系列工况循环下测得的动力性、平均燃油消耗和排放的试验结果。

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6、

After improvement, the fuel consumption has been reduced, the performance at low load and the life of main parts have been improved, furthermore, the high viscosity heavy fuel can be used.

通过这些改进降低了燃油消耗率,并且能够燃烧高粘度重油,改善了低负荷性能,提高了主要零件的使用寿命。

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7、

The return of fuel consumption growth comes as oil prices surge to$ 75-$ 80 a barrel, up almost 70 per cent from January, prompting policymakers to worry about the impact of the rise on econ-omic activity and inflation.

在此之际,油价已劲升至每桶75美元至80美元,比1月份上涨了近70%,这使得政策制定者们开始担心涨价可能对经济活动和通胀造成的影响。

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8、

Simulations suggest this would significantly reduce fuel consumption, says Dr Zhao, who is now looking for a commercial partner to build a test vehicle.

赵博士说:模拟显示,这样会大大减少燃料的消耗。目前,赵博士正在寻找商业合作伙伴,以制造一部试验车辆。

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9、

The results of comparison tests under full throttle opening showed that the power output, fuel consumption and durability were improved considerably on a four-stroke engine.

外特性对比试验结果表明,四冲程发动机的动力性、燃油消耗率和耐久性能均得到了明显改善。

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10、

The former takes the minimum fuel consumption rate point in the whole engine operating range as the target, the throttle opening keeps constant, the gear ratio of CVT is adjusted by the controller which is a single parameter control system.

单纯经济型作业模式以发动机在整个工作范围内的最低燃油消耗率点为目标工作点,油门开度不变,仅控制变速器传动比,为单变量控制系统;

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11、

Through fault simulation, main factors which influence the performance of Two-stroke diesel engine were analyzed. And when faults gradually deepen, main performance factors of diesel engine including effective power, fuel consumption rate, IMEP, maximum combustion pressure was also analyzed.

通过故障模拟,分析了影响低速二冲程柴油机性能的主要因素,及在故障逐渐加深时,柴油机主要性能参数(有效功率、燃油消耗率、平均指示压力和最大爆发压力等)变化规律。

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12、

The performance of aero engine ( thrust-to-weight ratio, specific fuel consumption) can be improved by increasing the turbine inlet temperature and the compressor pressure ratio.

在提高压气机压比的同时,提升涡轮前温度是改善航空燃气涡轮发动机性能(推重比、耗油率)的有效措施。

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13、

Counter-rotating turbine technology can have great advantages on improving the thrust-weight ratio, specific fuel consumption and the overall performance of an aeroengine, but it also brings a lot of pressing problems.

对转涡轮技术在提高涡轮航空发动机推重比、降低耗油率以及提高飞机的整机性能等方面具有明显的优势,但是同时也带来很多急需解决的问题。

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14、

Traffic congestion has brought some external costs such as the time delay loss, extra fuel consumption and air and the noise pollution, etc, so choose to drive out facing two costs including private driving cost and exterior driving cost.

交通拥堵带来了诸如时间延误损失、额外燃料消耗以及空气和噪音污染等外部成本,因此选择驾车出行面临着私人行车成本和外部行车成本两项成本。

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15、

Quasi-Poisson regression models were fitted with adjustments for time trend, seasonality, previous interventions and national fuel consumption.

准泊松回归模型与时间趋势、季节性以及之前干预措施方面的调整相适应。

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16、

When advertising a new car's efficiency, for example, it is more convincing to talk about the number of extra miles per gallon it does, rather than the equivalent percentage fall in fuel consumption.

比如,在宣传新车效率时,引用每加仑汽油多跑的英里数要比引用减少的耗油量的比值要更有说服力。

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17、

Tip clearance has much effect on the properties of aero-engine. As the reference of the project design, the numerical computation of tip clearance can improve the aero-engine performance, reliability and to reduce the specific fuel consumption ( SFC).

叶尖间隙对航空发动机性能有较大的影响,研究叶尖间隙的数值分析技术可以为工程设计提供参考,从而提高航空发动机的工作性能、可靠性和耐久性。

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18、

Through thermal determination of soaking pit side nozzle, we found that flame was too long, and air, gas were mixed unevenly in nozzle, which resulted in the uneven distribution of pit temperature, raised fuel consumption and influenced quality and output of steel.

通过对均热炉单侧上烧嘴的热工标定,发现烧嘴存在着火焰过长,空气和煤气混合不均匀,使得炉内温度场分布不够均匀,既增加燃料消耗又影响烧钢质量和产量。

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19、

The next generation is plug-in hybrids that improve fuel consumption by using higher-capacity batteries that can be charged from external sources.

下一代汽车将是插电式混合动力车,通过使用能够用外接电源充电的更高容量蓄电池来降低油耗。

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20、

However, the diesel engines require expensive aftertreatment and engine combustion strategies that lead to higher specific fuel consumption.

但是,柴油机需要用到昂贵的后处理装置,且各种燃烧策略的运用直接导致燃油耗增加。

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