气门

Some high-performance engines have two separate camshafts, one for each set of inlet and exhaust valves.

一些高性能发动机有两个单独的凸轮轴，分别负责开关进气门和排气门。

Our leading products, i.e., motorcycle brake disc, automatic slack adjuster and engine tappet have been in the world widely recognized. Air disc brake and electromagnetic fan clutch has successfully launched in the market. These products are marketed and distributed in Asia, Europe, North America and South America. We are one of the largest manufacturers and exporters of motorcycle brake disc, automatic slack adjuster and engine tappet in China.

集团主导产品两轮摩托车制动盘、汽车制动间隙自动调整臂、发动机气门挺柱均已成为国内外知名品牌，盘式制动器、电磁风扇离合器产品也成功推向市场，产品畅销亚洲、欧洲、美洲等几十个国家和地区，是国内最大的两轮车制动盘出口基地、国内最大的发动机气门挺柱和汽车制动间隙自动调整臂生产商。

Our leading products, i.e., motorcycle brake disc, automatic slack adjuster and engine tappet have been world widely recognized. Air disc brake and electromagnetic fan clutch has successfully launched in the market. These products are marketed and distributed in Asia, Europe, North America and South America. We are one of the largest manufacturers and exporters of motorcycle brake disc, automatic slack adjuster and engine tappet in China.

集团主导产品：两轮摩托车制动盘、汽车制动间隙自动调整臂、发动机气门挺柱均已成为国内外知名品牌，盘式制动器、电磁风扇离合器产品也成功推向市场，产品畅销亚洲、欧洲、美洲等几十个国家和地区，是国内最大的两轮车制动盘出口基地、国内最大的发动机气门挺柱和汽车制动间隙自动调整臂生产商。

A proposal has been made that move away the valve spring, sustain it up with valve head and leave the space for sensor installation and free leading wire to allow measurement of height change of direct action type hydraulic lash adjuster.

提出将气门弹簧移开，使其顶在气门头部，让出传感器安装及自由引线的空间，从而得以测量直动式HLA的高度变化量。

The librating diagnosis mechanism to clearance abnormity fault of engine valve is investigated,and the distilling method of chatacter parameter Eh which is high frequency energy is introduced.

对发动机气门间隙异常故障的振动诊断机理进行了研究，提出以高频能量E_h作为特征参数来检测气门间隙异常故障的方法。

The characteristic of librating signal of engines jar cover in frequent field is analyzed.The librating diagnosis mechanism to leaking gas fault of engine valve is investigated,and the distilling method of chatacter parameter Eh/Ew which is ratio of high frequency energy to chief energy is introduced.

分析了发动机缸盖振动信号的频域特性，在此基础上，对发动机气门漏气故障的振动诊断机理进行了研究，提取高频能量与总能量之比E_h／E_w作为特征参数来实现气门漏气故障的检测。

Main products and output: the internal combustion engine connecting rod is Huanghai Automobile Parts Co., Ltd. the leading products, the company forged connecting rod blank, processing, automotive connecting rod assembly, stamping automobile axle housing, automobile driver's cab, the engine oil pan, automotive longeron , trucks and cars with brake disc, brake lining, valve guides, valve seats, piston rings and other products as the mainstay, the use of advanced machining equipment, stamping, forging equipment, and ensuring product quality.

内燃机连杆是黄海汽车配件有限公司的主导产品，公司以锻造连杆毛坯、加工汽车连杆总成、冲压汽车后桥壳、汽车驾驶室、发动机油底壳、汽车纵梁、卡车及轿车用刹车盘、刹车片、气门导管、气门座、活塞环等产品为主体，采用国内先进的机械加工设备、冲压、锻压设备，保证了产品的质量。

Jinan Auto-Accessory Works, established in 1956. It's the largest manufacturer specializing in engine valves and valve tappets in china.

济南汽车配件厂始建于1956年，是中国最大的汽车发动机进、排气门和气门挺杆生产的专业厂。

Production companies piston pin, rocker arm valve shaft, insert, Valve Ting-chu, to the main section, and other top-five selling products, nearly 300 various types of aircraft.

公司生产活塞销、气门摇臂轴、镶块、气门挺柱、转向节主销等五大类产品，近300多种机型。

Also the valve heads will be liable to be burnt by the passing hot gases, and there is the likelihood of the piston crown touching an open valve, which can seriously damage the engine.

此外气门头易于被通过的热气体燃烧，这有可能使活塞频繁冲击打开的气门，使发动机严重损坏。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐