valve-stem guide

简明释义

阀杆导承

英英释义

例句

1.The technician used a special tool to measure the clearance of the valve-stem guide.

技术员使用特殊工具测量阀杆导向器的间隙。

2.The mechanic replaced the worn-out valve-stem guide to improve engine performance.

机械师更换了磨损的阀杆导向器以提高发动机性能。

3.During the engine rebuild, we checked each valve-stem guide for signs of wear.

在发动机重建过程中，我们检查了每个阀杆导向器是否有磨损迹象。

4.A faulty valve-stem guide can lead to excessive oil consumption in your vehicle.

故障的阀杆导向器可能导致车辆过度消耗油。

5.Replacing the valve-stem guide can help reduce valve noise.

更换阀杆导向器可以帮助减少阀门噪音。

作文

In the world of automotive engineering, every component plays a crucial role in ensuring the smooth operation of an engine. One such vital component is the valve-stem guide, which is often overlooked but essential for the performance and longevity of the engine. The valve-stem guide is a cylindrical component that supports the valve stem and ensures it moves smoothly within the cylinder head. This guide helps to maintain the correct alignment of the valve, allowing it to open and close efficiently during the engine's cycle. Without a properly functioning valve-stem guide, the valve could wear unevenly, leading to premature failure or even catastrophic engine damage.The design of the valve-stem guide is critical. It is typically made from durable materials such as cast iron or bronze, which can withstand high temperatures and pressures within the engine. Additionally, the guide must be precisely machined to ensure a tight fit with the valve stem, minimizing any lateral movement that could cause wear over time. Engineers must also consider the lubrication of the valve-stem guide, as proper oil flow is necessary to reduce friction and heat buildup.When an engine is in operation, the valve-stem guide plays a pivotal role in the efficiency of the combustion process. As the valve opens, it allows air and fuel to enter the combustion chamber, while the closing of the valve seals the chamber for ignition. If the valve-stem guide is worn or damaged, it can lead to issues such as poor sealing, which may result in a loss of power and increased emissions.Regular maintenance of the engine includes inspecting the valve-stem guide for signs of wear or damage. Mechanics will often check for play in the valve stem, which can indicate that the guide is no longer functioning correctly. If necessary, replacing the valve-stem guide can restore optimal engine performance. In high-performance engines, upgraded guides made from advanced materials may be used to improve durability and performance under extreme conditions.In conclusion, the valve-stem guide is a small but vital component in the automotive engine that deserves attention during maintenance and repairs. Understanding its function and importance can help car owners appreciate the intricacies of their vehicle's engine and the engineering that goes into making it run smoothly. By ensuring that the valve-stem guide is in good condition, vehicle owners can extend the life of their engine and avoid costly repairs down the line. The next time you think about engine components, remember the significance of the valve-stem guide and how it contributes to the overall performance and reliability of your vehicle.

在汽车工程的世界中，每个组件都在确保发动机平稳运行方面发挥着至关重要的作用。一个常常被忽视但对发动机性能和寿命至关重要的组件是阀杆导向器。阀杆导向器是一个圆柱形组件，支撑阀杆并确保其在气缸盖内平稳移动。这个导向器有助于保持阀门的正确对齐，使其在发动机循环过程中能够有效地打开和关闭。如果没有正常运作的阀杆导向器，阀门可能会不均匀磨损，导致过早失效甚至灾难性的发动机损坏。阀杆导向器的设计至关重要。它通常由铸铁或青铜等耐用材料制成，这些材料能够承受发动机内部的高温和高压。此外，导向器必须经过精确加工，以确保与阀杆紧密配合，最小化可能导致磨损的横向运动。工程师还必须考虑阀杆导向器的润滑，因为适当的油流对于减少摩擦和热量积累是必要的。当发动机运行时，阀杆导向器在燃烧过程的效率中发挥着关键作用。当阀门打开时，它允许空气和燃料进入燃烧室，而阀门的关闭则为点火密封了燃烧室。如果阀杆导向器磨损或损坏，可能会导致密封问题，从而导致功率损失和排放增加。发动机的定期维护包括检查阀杆导向器是否有磨损或损坏的迹象。机械师通常会检查阀杆的间隙，这可能表明导向器不再正常运作。如有必要，更换阀杆导向器可以恢复最佳的发动机性能。在高性能发动机中，可能会使用由先进材料制成的升级导向器，以提高在极端条件下的耐用性和性能。总之，阀杆导向器是汽车发动机中一个小但至关重要的组件，在维护和修理期间值得关注。理解它的功能和重要性可以帮助车主欣赏到他们车辆发动机的复杂性以及实现平稳运行所需的工程技术。通过确保阀杆导向器处于良好状态，车辆所有者可以延长发动机的使用寿命，避免将来的高额维修费用。当你下次想到发动机组件时，请记住阀杆导向器的重要性，以及它如何为你车辆的整体性能和可靠性做出贡献。