oversize valve stem

By analyzing the normal causes of discharge stem damage of MAN40/45 mid - speed diesel engine , the author holds that these damages are mainly caused by the impropriety of the structure of the discharge gate and guiding sleeve and the defects of the quality of the materials, which the discharge gate made of.

分析了ＭＡＮ４０/４５中速柴油机排气门杆常发生损伤的原因,认为是排气门及导套的结构与排气门的材质问题造成的。

The reason of the formation of gas porosities and cracks on the head face of valve tappet has been studied.

本文分析了气门挺杆端面气孔、裂纹形成原因。

Analyzing on Damage of Discharge Stem of MAN40/45 Mid-Speed Diesel Engine;

MAN40/45中速柴油机排气门杆损伤分析

You make sure the gear-lever' s in neutral and the hand-Brake' s on; then you pull out the choke and switch on the engine.

你要肯定排档杆在空档，手闸要煞住;然后，拔出阻气门，开动发动机。

Leaks can occur along the valve stem through the packing or diaphragms. Leaks of this type can be stopped by closing the valve and venting any pressure from the outlet.

泄漏可能沿着阀杆通过衬垫或隔膜发生。关闭阀门，从排气口排出压力可以停止这种泄漏。

valve-tappet clearance adjuster

气门挺杆间隙调节器

tappet oil gallery

(气门) 挺杆润滑油道

Install the hydraulic valve tappets.

安装液压气门挺杆。

"After the cam lobe moves out from under the valve lifter, the valve spring forces the valve up onto its seat again."

当凸轮凸角离开气门挺杆,气门弹簧使气门重新回到气门座上。

(trying the gauge-cocks).

（摹仿着汽门排气的声音。）

You make sure the gear-lever's in neutral and the hand-brake's on; then you pull out the chocke and switch on the engine. Then you push down the clutch pedal

你要肯定安排档杆在空档，手闸要煞住；然后，拔出阻气门，开动发动机。然后踩下离合器踏板

You make sure the gear-lever's in neutral and the hand-Brake's on; then you pull out the choke and switch on the engine. Then you push down the clutch pedal.

你要肯定排档杆在空档，手闸要煞住;然后，拔出阻气门，开动发动机。然后踩下离合器踏板。

Valve sticking. Gum or carbon deposits on the valve stem will cause valve sticking. Excessive valve-stem clearance speeds up valve deposits.

气门沾着:气门杆上的胶质或积炭是造成沾着的原因。气门杆间隙过大会加速气门的积炭。

This action could open an inlet valve for an intake stroke, or open an exhaust valve for an exhaust stroke.

这过程能使进气门在进气行程打开，或者排气门在排气行程打开。

Method of Rod Design of Screw Pump Gas Production

螺杆泵排水采气杆柱强度设计方法研究

Stand clear of the regulator and valve outlet, while opening the valve.

开启阀门时，躲开调整器和阀门排气口。

"That is to say, each cylinder has two valves, an intake valve and exhaust valve."

也就是说,每个气缸有两个气门,即进气门和排气门。

Valve Burning. This is usually an exhaust-valve problem. Any condition that prevents normal exhaust-valve seating may lead to valve Burning.

气门烧伤:这种情况通常发生在排气门。任何妨碍排气门密封面贴合的情况都会导致气门烧伤。

Valve Lash Adjuster

气门间隙调节器又称液压挺杆

Manual Valve Lever Position Sensor

手动气门叉杆位置感知器