exhaust valve lifter

简明释义

排气阀挺杆

英英释义

例句

1.The engine's efficiency improved significantly after the exhaust valve lifter was adjusted.

在调整了排气阀挺杆后，发动机的效率显著提高。

2.During the inspection, we found that the exhaust valve lifter was worn out.

在检查过程中，我们发现排气阀挺杆磨损严重。

3.A noisy exhaust valve lifter can indicate that it needs lubrication or replacement.

嘈杂的排气阀挺杆可能表明需要润滑或更换。

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

机械师更换了故障的排气阀挺杆以提高发动机性能。

5.It’s important to check the exhaust valve lifter regularly to avoid engine damage.

定期检查排气阀挺杆对于避免发动机损坏非常重要。

作文

The engine of a vehicle is a complex system that relies on various components working together to ensure optimal performance. One such component is the exhaust valve lifter, which plays a crucial role in regulating the flow of exhaust gases from the combustion chamber. Understanding the function and importance of the exhaust valve lifter can greatly enhance our knowledge of automotive engineering and maintenance.The exhaust valve lifter is part of the valve train in an internal combustion engine. Its primary function is to lift the exhaust valve off its seat, allowing the spent gases to exit the cylinder after the combustion process. This action is vital for maintaining engine efficiency and preventing back pressure, which can hinder performance. When the exhaust valve lifter operates correctly, it ensures that the exhaust gases are expelled quickly and efficiently, enabling the engine to draw in fresh air-fuel mixtures for the next cycle of combustion.There are different types of lifters used in engines, including hydraulic and mechanical lifters. Hydraulic lifters automatically adjust to maintain zero clearance between the rocker arm and the valve stem, providing a quieter operation and reducing wear on engine components. On the other hand, mechanical lifters require manual adjustment and can produce more noise. Regardless of the type, the exhaust valve lifter must be in good condition to ensure proper engine function.Over time, the exhaust valve lifter can wear out or become damaged due to factors such as poor lubrication, contamination, or excessive heat. Symptoms of a failing lifter may include ticking noises from the engine, reduced power, or poor fuel economy. Regular maintenance, including oil changes and inspections, can help prevent issues related to the exhaust valve lifter and prolong the life of the engine.In addition to its mechanical role, the exhaust valve lifter contributes to the overall emissions system of the vehicle. Properly functioning lifters help ensure that the exhaust gases are expelled efficiently, which can reduce harmful emissions and improve air quality. This aspect is becoming increasingly important as environmental regulations become stricter, making it essential for vehicle owners to understand the significance of components like the exhaust valve lifter.In conclusion, the exhaust valve lifter is a vital component of an internal combustion engine that facilitates the expulsion of exhaust gases. Its proper function is essential for maintaining engine performance, efficiency, and compliance with environmental standards. By understanding the role of the exhaust valve lifter, vehicle owners and enthusiasts can better appreciate the intricacies of automotive engineering and the importance of regular maintenance. Keeping an eye on the health of this component can lead to a smoother-running engine and a longer lifespan for the vehicle overall.

汽车发动机是一个复杂的系统，依赖于各种组件共同工作以确保最佳性能。其中一个重要组件是排气阀升降器，它在调节燃烧室内废气流动方面发挥着至关重要的作用。理解排气阀升降器的功能和重要性可以大大增强我们对汽车工程和维护的知识。排气阀升降器是内燃机阀门传动系统的一部分。它的主要功能是将排气阀从座位上抬起，允许燃烧后的废气在燃烧过程后从气缸中排出。这一动作对于保持发动机效率和防止背压至关重要，背压会妨碍发动机性能。当排气阀升降器正常工作时，它确保废气迅速有效地排出，使发动机能够为下一个燃烧周期吸入新鲜的空气-燃料混合物。发动机中使用的升降器有不同类型，包括液压升降器和机械升降器。液压升降器自动调整，以保持摇臂与阀杆之间的零间隙，从而提供更安静的操作并减少发动机部件的磨损。另一方面，机械升降器需要手动调整，并可能产生更多噪音。无论类型如何，排气阀升降器都必须处于良好状态，以确保发动机正常运行。随着时间的推移，由于润滑不良、污染或过热等因素，排气阀升降器可能会磨损或损坏。升降器故障的症状可能包括发动机发出嘀嗒声、动力降低或燃油经济性差。定期维护，包括换油和检查，可以帮助防止与排气阀升降器相关的问题，并延长发动机的使用寿命。除了其机械作用外，排气阀升降器还对车辆的整体排放系统做出贡献。正常工作的升降器确保废气有效排出，这可以减少有害排放并改善空气质量。随着环境法规日益严格，这一方面变得越来越重要，使得车辆所有者了解像排气阀升降器这样的组件的重要性。总之，排气阀升降器是内燃机的一个重要组件，促进废气的排放。其正常功能对维持发动机性能、效率和遵守环境标准至关重要。通过理解排气阀升降器的作用，车辆所有者和爱好者可以更好地欣赏汽车工程的复杂性以及定期维护的重要性。关注这一组件的健康状况可以带来更顺畅的发动机运转和车辆整体更长的使用寿命。