进气

According to the deficiency of sorts of devices for antifriction to diesel gas-in valve in our country a new-style device is provided and discussed its principles and structure .

针对国内各种形式的柴油机进气伐减磨装置存在的不足，提出了一种全新的柴油机进气伐减磨装置，并对其工作原理及结构进行了论述。

The purpose of the invetion is to effectively stop the blowoff of an injected fuel into an exhaust port when the opening and closing of valves are overlapped with each other by properly setting the fuel injection direction of a fuel injection device mounted so as to face the intake passage of an internal combustion engine.

提供一种内燃机的进气结构，适当设定被安装成对着内燃机的进气通道的燃料喷射装置的燃料喷射方向，有效防止在气门开闭动作时间的重合期间朝向排气口的喷射燃料的喷泄。

When the two valves are closed, manifold vacuum is applied in opposite senses, thereby canceling the effect of variation in manifold vacuum on opening of the purge flow regulator.

当两阀门关闭时，进气歧管的真空以两个相反方向作用，因此抵消了进气歧管内的真空变化对清洗气流控制装置开度的影响。

A vehicle body structure includes a dash panel that partitions an engine chamber from the vehicle interior. An intake manifold for an engine is housed in the engine chamber, and an air box extends in a direction of the width of the vehicle and is located above the dash panel. A linking member is connectible to both the dash panel and the air box. At least a portion of the linking member overlaps a portion of the intake manifold in the direction of the width of the vehicle.

本发明提供了一种车辆的底盘结构，包括：驾驶室前壁板，其把车辆的发动机室与车辆内部分隔开；发动机进气岐管，其设置在所述发动机室内；空气箱，其沿着与车辆的宽度相对应的方向延伸，并且位于所述驾驶室前壁板的上方；以及联结构件，其连接到所述驾驶室前壁板和所述空气箱上，所述联结构件的至少一部分与所述进气岐管的至少一部分在沿着与车辆的宽度相对应的方向上重叠。

The pressure correction method is used to calculate the two-dimensional turbulent flow in general curvilinear coordinates.

按照进气箱对称面的形状，给出一种简化的二维进气箱几何模型，用微分方程法生成贴体的曲线网格，在任意曲线坐标系下采用压力修正法数值模拟了其内部二维湍流流动。

The discharge coefficient increases rapidly as the increase of the pressure ratio in the small blade entrance angle while change smoothly in the big blade entrance angle.

在较小几何进气角时，流量系数随压比增大而增大，在较大几何进气角时，流量系数随压比变化不大。

Based on the former works by our group, the variable induction devices including swirl and tumble variable devices were developed and the variable induction and twice injection were combined to optimize the lean burn combustion and improve fuel consumption and emissions in this thesis.

本文在课题组前面研究工作的基础上，设计了可变涡流与可变滚流两种滑动式可变进气结构，并将可变进气与二次喷油结合起来优化稀薄燃烧过程，改进发动机经济性与排放性能。

Effluent malodor concentration is less than 1 mg/m3 when gas flow rateis 0.3,0.6 or 1.2 m3/h and influent malodor concentration is 118?

结果表明，乙硫醇进气流量为 0 3、 0 6和 1 2m3/h ，进气浓度分别为 118、 64和 31mg/m3时，乙硫醇出气浓度不高于 1mg/m3。

Secondly, the flow characteristic of the intake system of pre-mixed spark ignition gas engine was studied on the vacuum pump. The discharge coefficient models of the air valve, the gas valve and the subsystem of the mixer and throttle were modeled. Their working flow characteristics were analyzed. And the dynamic model of the intake system was identified.

其次，在真空泵流量实验台上完成了预混点燃式气体燃料发动机进气系统的流量特性研究，建立了空气阀、燃气阀及"混合器+节气门"子系统的流量系数模型并分析了其工作流量特性；建立了发动机外围进气系统的动态模型。

Maintaining engine operating at constant load and varying the argon fraction in the intake charge, the influence of argon fraction in the intake charge on the performance of a closed cycle diesel engine was studied.

恒定柴油机负载，改变混合进气中氩气的含量，分析了进气混合气中氢气含量对闭式循环柴油机性能的影响。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。