气门

Taizhou City Zhongyu Valve and Radiator Co. Ltd., is a professional manufacturer in radiator for car, motorcycle, sandmotormike, refit-car and OEM. Since established in 1999, we were escalating the company scale (kanmen technological industrial zone yuhuan zhejiang takes 15 acre. total assets reached 40 millions and machinery industrial zone wuhu,anhui takes 130 acre. total investment reached 150 billions),and obtained the TS16949 Quality Management System in 2008.Our products have been most popular with the market of USA, Europe, Australia, South of Asia, and Middle east etc. country and region.

台州市中宇气门散热器有限公司，坐落于浙江玉环---汽车零部件产业基地，是各种汽车、摩托车、沙滩车、改装车等以及OEM配套散热器的专业生产厂家，公司自1999年成立以来，规模逐步扩大（玉环科技工业园区占地面积15亩，总资产4000多万元；以及安徽省芜湖机械工业园区占地面积130亩，资产投资1.5亿），并于2008年顺利通过TS16949质量管理体系认证，公司产品远销美国、欧洲、澳洲、中南亚、中东等国家和地区。

Although the valve lift of PA6B is bigger than PA6s, the cam lift becomes small with a bigger ratio of the rocking arm, this is of advantage to enhance the working life of cam.

这样尽管气门升程较PA6柴油机大，但由于其增大了摇臂比，所以凸轮升程反而较小，有利于凸轮设计及提高凸轮寿命。

Hyundai's well-utilized 2.0-liter engine with continuously variable valve timing pumps out 138 horsepower and 136 lb-ft. of torque that reaches critical mass at 4,600 rpm.

现代的良好的使用2.0升发动机，连续可变气门正时泵出138马力和136磅英尺扭矩达到临界质量是在4600转。

So as to attain the best size of the valve spring.

从而获得最佳的气门弹簧尺寸。

So for guaranteeing and raising the dynamics characteristics of valve train, the design of valve spring need to be studied carefully and deeply.

因此，为了提高配气机构的动态性能，需要对气门弹簧进行全面、细致和深入的研究。

Use the special tool to compress the valve spring.

利用专用工具压缩气门弹簧。

The paper deals with the fatigue strength,lifetime prediction and its influences of the valve spring steel wires .

讨论气门弹簧钢丝的疲劳强度、寿命预测及其影响因素。

Oil quenched and tempered spring wire is the raw material of car's suspension spring and valve spring .

油淬火一回火弹簧钢丝是生产制造轿车悬挂弹簧和发动机气门弹簧的原料，这两类弹簧在汽车工业零部件中属于&D&级产品，即按相关规定，一旦发现有缺陷整车必须强制召回。

According to the results of measurements, the effect of geometric parameters of inlet valve seat on the air motion in the inlet port is found obviously. It is also proved according to the calculations of two-dimension model of a steady intake flow.

在研制低涡流比进气道时发现，气门阀座结构对进气流动性能影响较大，对进气道内二维稳态气流模拟计算的结果可从理论上进一步证实了试验的结论。

Equations representing boundary conditions of faces of the intake port,valve and valve motion as well as the opened system including import and export were given.

给出确定进气道壁面边界条件、进气门表面边界条件以及进出口开口系统边界条件的计算公式。

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％。