valve tappet

简明释义

阀门挺杆

英英释义

例句

1.If the valve tappet is too loose, it can cause a ticking noise in the engine.

如果气门挺杆过松，会导致发动机发出滴答声。

2.A faulty valve tappet can lead to poor fuel efficiency.

故障的气门挺杆可能导致燃油效率低下。

3.During the overhaul, we replaced all the valve tappets in the engine.

在大修期间，我们更换了发动机中的所有气门挺杆。

4.The mechanic adjusted the valve tappet to ensure optimal engine performance.

机械师调整了气门挺杆以确保发动机的最佳性能。

5.Regular maintenance includes checking the valve tappet for wear and tear.

定期维护包括检查气门挺杆的磨损情况。

作文

The internal combustion engine is a marvel of engineering, and at the heart of its operation lies a complex system of components that work in harmony to produce power. One such component is the valve tappet, which plays a crucial role in the engine's performance. Understanding the function and importance of the valve tappet can help us appreciate the intricacies of engine design and maintenance.The valve tappet, also known as a lifter or cam follower, is part of the valve train assembly in an engine. Its primary function is to transfer the motion from the camshaft to the valves, allowing them to open and close at the appropriate times during the engine cycle. This process is essential for the engine to intake air and fuel and expel exhaust gases efficiently.In a typical engine, the camshaft rotates and pushes against the valve tappet, which in turn moves the connected valve. The timing of this movement is critical; if the valves do not open and close at the right moments, the engine will not run smoothly, and performance will suffer. Therefore, the valve tappet must be precisely engineered to ensure accurate operation.There are several types of valve tappets, including hydraulic, solid, and roller tappets. Hydraulic tappets automatically adjust to maintain zero clearance between the tappet and the valve stem, reducing noise and wear. Solid tappets, on the other hand, require manual adjustment to maintain proper clearance. Roller tappets reduce friction and wear by using a small roller at the contact point with the camshaft, resulting in improved efficiency and performance.Maintaining the valve tappet is vital for the longevity of the engine. Over time, wear and tear can lead to improper functioning, resulting in issues such as valve clatter, decreased power, and even engine failure. Regular maintenance, including oil changes and inspections, can help ensure that the valve tappet operates effectively. Additionally, using high-quality oil can help minimize wear on the tappets and other moving parts within the engine.In conclusion, the valve tappet is a small yet essential component of the internal combustion engine. Its role in transferring motion from the camshaft to the valves is critical for the engine's overall performance. By understanding the function and importance of the valve tappet, car enthusiasts and mechanics alike can better appreciate the complexities of engine design and the necessity of regular maintenance. As we continue to advance in automotive technology, the valve tappet will remain a vital element in the quest for efficient and powerful engines.

内燃机是工程的奇迹，而其运作的核心在于一系列复杂的组件，它们和谐地共同工作以产生动力。其中一个重要组件是阀门推杆，它在发动机的性能中发挥着至关重要的作用。理解阀门推杆的功能和重要性可以帮助我们欣赏发动机设计和维护的复杂性。阀门推杆，也称为升降器或凸轮跟随器，是发动机阀门系统的一部分。它的主要功能是将来自凸轮轴的运动传递给阀门，使其在发动机循环过程中适时开启和关闭。这个过程对于发动机高效进气和排气至关重要。在典型的发动机中，凸轮轴旋转并推动阀门推杆，而阀门推杆又移动连接的阀门。这一运动的时机至关重要；如果阀门没有在正确的时刻开启和关闭，发动机将无法平稳运行，性能将受到影响。因此，阀门推杆必须经过精确设计，以确保准确操作。阀门推杆有几种类型，包括液压推杆、固体推杆和滚子推杆。液压推杆能够自动调整，以保持推杆与阀杆之间的零间隙，从而减少噪音和磨损。而固体推杆则需要手动调整以保持适当的间隙。滚子推杆通过在与凸轮轴接触点使用小滚子来减少摩擦和磨损，从而提高效率和性能。维护阀门推杆对发动机的长寿命至关重要。随着时间的推移，磨损可能导致功能不正常，进而导致阀门敲击、动力下降甚至发动机故障。定期维护，包括换油和检查，可以帮助确保阀门推杆有效运作。此外，使用高质量的机油可以帮助减少推杆和发动机内其他运动部件的磨损。总之，阀门推杆是内燃机中一个小但至关重要的组件。它在将运动从凸轮轴传递到阀门方面的角色对于发动机的整体性能至关重要。通过理解阀门推杆的功能和重要性，汽车爱好者和机械师都可以更好地欣赏发动机设计的复杂性以及定期维护的必要性。随着我们在汽车技术上的不断进步，阀门推杆将继续作为追求高效和强大发动机的重要元素。