气门

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。

The results showed that there existed a close relationship between the concentration of Pb and the community structure of soil animal. Among the 1289 individuals collected in the experiment, the dominant genera are Collembola, Prostigmata and Oribatida, which amounted to 78.2% of the total.

在获得的1289个土壤动物中，优势类群为弹尾目、前气门亚目和甲螨亚目，3个优势类群占土壤动物全捕量的78.2%，对动物群落结构起决定作用。

A two-dimentional isothermal transient full film and part film EHL model has been established, which is used to analyze lubricational behavior of cam-tappet pair of valve train. Using mulit-gird method, the oil film status during intake duration could be investigated with the consideration of dynamic effect. The influences of surface roughness are also taking into account in the part film model.

建立了配气凸轮-挺柱副润滑油膜分析的二维等温瞬态全膜及部分膜模型，运用多重网格法进行计算，结合动力学计算模型分析了从进气门开启至关闭期间油膜状态的变化，并在部分膜润滑下考虑了表面粗糙度对其影响。

The results show that during intake,compression,expansion and exhaust processes,mean velocities of air flow in the cylinder under firing condition are quite different from those under motored conditions.

在一台单缸四气门火花点火式发动机上，用激光多普勒测速仪分别在发动机着火和倒拖条件下测量和分析了燃烧室气流运动的规律。

Set up in 1959, REVL is the flagship company of the Rane Group engaged in the production of Engine Valves and Valve Train Components.

500万美元。这个设施是用于训练新兵，加强操作人员的技术水平和开发能力的多种技能成立于1959年成立，REVL是录音棚集团的旗舰公司，在发动机阀门和气门组件从事生产。

Commenting on the occasion, L. Ganesh said, The new line being inaugurated here at Rane Engine Valve Ltd today is a significant indicator of Rane Group's ability to innovate and also a good example how bold, new thinking can create visions and solutions to complement the business goals.

在仪式上发表评论，湖加尼甚说：新的生产线正在这里开幕录音棚品质的发动机气门有限公司今天是一个录音棚集团的创新能力，也是一个很好的例子大胆的重要指标，可以创造新的思维和解决方案的设想，以补充业务目标。

Rane Engine Valve, the flagship company of the Rane Group, has recently inaugurated their new line for manufacturing of Valves for Kappa Engines of Hyundai Motor India.

罗讷气门，该录音棚集团的旗舰公司，其最近成立的阀门制造卡帕印度的现代汽车发动机新行。

The increase in engine output from 640 to 670 hp is the result of optimized valve timing and a reworked intake system.

的增加，发动机输出640至670马力的原因是优化气门正时和返工进气系统。

"We are also in the concept development stage of a camless actuation device that will be packaged with a cylinder head module that includes valvetrain components,"said Srinivasan.

&我们还在构想开发一种无凸轮驱动装置，这种装置将由汽缸盖包裹并包括气门传动零件，& Srinivasan说，&这整个的驱动装置将包括汽缸盖或汽缸盖的一部分。&

During "9th Five-year-plan"梩he most difficult period for Dongan Company, Dongan has audaciously implemented management innovation, applied the modern project management theory and method for the technical reconstruction for new products development, in which the traditional product structure was adjusted by adopting the current advanced technology, and a new generation of DA2 series mul tiple val ves EF1 engine is developed and produced to meet the market requirements.

&九五&期间，东安公司在发展的困难时期，大胆实行管理创新，应用现代项目管理理论和方法，进行新产品开发技术改造，采用当代先进技术调整传统产品结构，创造新一代DA2系列多气门电喷发动机，满足市场需求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。