valve lifter

简明释义

阀推杆

英英释义

例句

1.When tuning the engine, pay attention to the valve lifter adjustments.

在调校发动机时，注意气门挺杆的调整。

2.An improperly adjusted valve lifter can cause engine misfires.

调整不当的气门挺杆可能导致发动机失火。

3.The mechanic replaced the faulty valve lifter to improve engine performance.

机械师更换了故障的气门挺杆以提高发动机性能。

4.A noisy valve lifter can indicate a need for maintenance.

嘈杂的气门挺杆可能表明需要维护。

5.Regular oil changes can help extend the life of your valve lifter.

定期更换机油可以帮助延长你的气门挺杆的使用寿命。

作文

The engine of a car is a complex machine with many components working together to produce power. One of the critical parts of this system is the valve lifter, which plays a vital role in the engine's operation. To understand its importance, we need to delve into how an internal combustion engine functions. An internal combustion engine relies on a series of controlled explosions to generate power. These explosions occur in the engine's cylinders, where fuel and air mix and ignite. The movement of the pistons caused by these explosions needs to be precisely timed with the opening and closing of the engine's valves. This is where the valve lifter comes into play. The valve lifter, also known as a tappet, is responsible for transferring the motion from the camshaft to the valves. The camshaft rotates and pushes against the valve lifter, which then pushes the valve open. When the camshaft rotates further, the valve lifter allows the valve to close again. This process is crucial because it ensures that the engine can intake air and fuel and expel exhaust gases at the correct times. There are different types of valve lifters, including solid and hydraulic varieties. Solid valve lifters require manual adjustment to maintain the proper clearance between the lifter and the valve. On the other hand, hydraulic valve lifters automatically adjust themselves to maintain the correct clearance, which can lead to quieter operation and less maintenance. If a valve lifter fails or becomes worn, it can lead to serious engine problems. A malfunctioning valve lifter may cause the valves not to open or close properly, leading to decreased engine performance, increased emissions, and potential engine damage. Therefore, regular maintenance and inspection of the valve lifter and other engine components are essential for keeping a vehicle running smoothly. In conclusion, the valve lifter is a small yet essential component of an internal combustion engine. Its role in controlling the timing of the engine's valves is crucial for optimal performance. Understanding how the valve lifter works can help car owners appreciate the complexity of their vehicles and the importance of maintaining them. Regular checks and timely replacements of worn-out parts, including the valve lifter, can ensure that the engine continues to operate efficiently and reliably, prolonging the life of the vehicle and enhancing the driving experience.

汽车的发动机是一个复杂的机器，许多部件共同工作以产生动力。这个系统中一个关键的部分是阀门升降器，它在发动机的操作中起着至关重要的作用。要理解其重要性，我们需要深入了解内燃机的工作原理。内燃机依靠一系列受控的爆炸来产生动力。这些爆炸发生在发动机的气缸中，燃料和空气混合并点燃。活塞因这些爆炸的运动而移动，需要与发动机阀门的开闭精确配合。这就是阀门升降器发挥作用的地方。阀门升降器，也称为摇臂，是将运动从凸轮轴传递到阀门的部件。凸轮轴旋转并推动阀门升降器，然后推动阀门打开。当凸轮轴进一步旋转时，阀门升降器允许阀门再次关闭。这个过程至关重要，因为它确保发动机能够在正确的时间进气和排气。有不同类型的阀门升降器，包括固体和液压类型。固体阀门升降器需要手动调整以保持升降器和阀门之间的适当间隙。而液压阀门升降器则会自动调整自身以保持正确的间隙，这可以导致更安静的运行和更少的维护。如果阀门升降器失效或磨损，可能会导致严重的发动机问题。故障的阀门升降器可能导致阀门无法正常开启或关闭，从而导致发动机性能下降、排放增加以及潜在的发动机损坏。因此，定期维护和检查阀门升降器及其他发动机部件对于保持车辆平稳运行至关重要。总之，阀门升降器是内燃机中一个小但至关重要的组件。它在控制发动机阀门时机方面的作用对最佳性能至关重要。了解阀门升降器的工作原理可以帮助车主欣赏他们车辆的复杂性以及维护的重要性。定期检查和及时更换磨损的部件，包括阀门升降器，可以确保发动机继续高效可靠地运行，延长车辆的使用寿命，提升驾驶体验。