The crankcase opening for the roaddraft tube was usually well shielded . 行车气流抽吸管的曲轴箱开口通常是很好地遮挡着的。
Backseating the valve stops any flame from traveling through the valve and connecting hose into the crankcase . 落座的阀门阻止火焰通过阀门和连接管进入曲轴箱。
The motion of the rotor can be balanced completely with rotating counterweights attached to the crankshaft . 使用连接在曲轴上的转动平衡块，转子的运动就能完全平衡。
In the engine, oil is supplied to crankshaft and camshaft journals rotating in their supporting bearings . 在发动机里，机油被供应到旋转在其支承轴内的曲轴和凸轮轴轴颈上。
The four places in the automobile from which pollutants can escape are the fuel tank, carburetor, crankcase and tail pipe . 汽车内泄漏污染物的四个位置是燃油箱、化油箱、曲轴箱和尾管。
Blowby is basically the leakage of compressed air-fuel mixture and burned gases past the piston rings into the crankase . 窜气，基本上是被压缩的空燃混合气和燃烧后的气体的泄漏，它通过活塞环进入曲轴箱。
When the hood was up and the engine idling, crankcase vapors could often be seen escaping from the open breather cap . 当发动机盖打开并且发动机怠速运转时，我们常常可以看见从开式通气盖漏出的曲轴箱蒸气。
All automobile engines now built are equipped with the positive-crankcase ventilation system of crankcase emission control . 所有现代制造的汽车发动机，都需要装备控制曲轴箱有害污染的曲轴箱强制通风系统。
The crankcaseventilation system, using a road-draft tube, vented the crankcase vapors and blow-by gas into the atmosphere . 采用行车抽吸管的曲轴箱通风系统，给曲轴箱内的蒸气和窜漏气体排入大气提供了出口。
One of the jobs of pcv system is to remove these crankcase contaminants before the rotating crankshaft mixes them with the oil . PCV系统的作用之一是，在旋转的曲轴把水和液体汽油混合之前，把它们排出曲轴箱。
