valve push rod

简明释义

推阀杆

英英释义

例句

1.During the overhaul, we had to adjust the valve push rod 阀门推杆 for proper alignment.

在大修期间，我们需要调整阀门推杆以确保正确对齐。

2.A faulty valve push rod 阀门推杆 can lead to misfiring in the engine.

故障的阀门推杆可能导致发动机失火。

3.The mechanic inspected the engine and found that the valve push rod 阀门推杆 was bent.

机械师检查了发动机，发现阀门推杆是弯的。

4.When disassembling the engine, be careful not to lose the valve push rod 阀门推杆 clips.

拆卸发动机时，要小心不要丢失阀门推杆夹子。

5.Replacing the valve push rod 阀门推杆 can improve engine performance significantly.

更换阀门推杆可以显著提高发动机性能。

作文

The internal combustion engine is a marvel of engineering, consisting of various components that work in harmony to convert fuel into motion. One of the critical elements in this intricate system is the valve push rod, which plays an essential role in the operation of the engine's valves. Understanding the function and importance of the valve push rod can provide insight into how engines operate and why maintenance is crucial for their longevity.The valve push rod is a slender rod that transmits motion from the camshaft to the engine's valves. When the engine is running, the camshaft rotates, and its lobes push against the valve push rod. This action causes the rod to move, which in turn opens or closes the valves at the appropriate times during the engine's cycle. The timing of these movements is critical; if the valves do not open and close at the correct intervals, the engine will not run efficiently, and performance will suffer.In many engines, there are two types of valves: intake and exhaust. The intake valves allow air and fuel to enter the combustion chamber, while the exhaust valves let out the burnt gases after combustion. The valve push rod ensures that these valves operate in sync with the engine's piston movements. For instance, when the piston moves down during the intake stroke, the intake valve must open to allow the air-fuel mixture to enter. Conversely, during the exhaust stroke, the exhaust valve must open to release the gases. The precise timing facilitated by the valve push rod is what makes this possible.The material and design of the valve push rod are also significant. Typically made from steel or aluminum, these rods must withstand high levels of stress and heat. Over time, they can wear down or become damaged, leading to issues such as misalignment or failure to transmit motion effectively. Regular maintenance checks can help identify any potential problems before they escalate into more severe issues that could affect engine performance.In modern engines, the design of the valve push rod has evolved significantly. Some advanced engines use hydraulic lifters instead of traditional push rods, which can provide a more efficient way to control valve movement. However, the basic principle remains the same: the valve push rod must ensure that the valves operate correctly to maintain engine efficiency and power.In conclusion, the valve push rod is a vital component of an internal combustion engine, playing a crucial role in the timing and operation of the engine's valves. Understanding its function helps in appreciating the complexity of engine design and the importance of regular maintenance. As automotive technology continues to advance, the role of the valve push rod may evolve, but its fundamental purpose will remain the same: to ensure that the engine runs smoothly and efficiently. Proper care and understanding of this component can lead to better vehicle performance and longevity, making it an essential aspect of automotive knowledge for both enthusiasts and everyday drivers alike.

内燃机是工程的奇迹，由各种组件组成，这些组件协调工作，将燃料转化为运动。在这个复杂系统中，一个关键的元素是阀推杆，它在发动机阀门的操作中扮演着重要角色。理解阀推杆的功能和重要性可以提供对发动机如何运行以及为什么维护对其长寿至关重要的见解。

阀推杆是一根细长的杆，负责将运动从凸轮轴传递到发动机的阀门。当发动机运行时，凸轮轴旋转，其凸轮推动阀推杆。这一动作导致推杆移动，从而在发动机周期的适当时刻打开或关闭阀门。这些运动的时机至关重要；如果阀门没有在正确的时间开合，发动机将无法高效运行，性能也会受到影响。

在许多发动机中，有两种类型的阀门：进气阀和排气阀。进气阀允许空气和燃料进入燃烧室，而排气阀则在燃烧后释放燃烧气体。阀推杆确保这些阀门与发动机活塞的运动同步。例如，当活塞在进气冲程中向下移动时，进气阀必须打开，以便让空气-燃料混合物进入。相反，在排气冲程中，排气阀必须打开，以释放气体。阀推杆所促进的精确时机使这一切成为可能。

阀推杆的材料和设计也非常重要。通常由钢或铝制成，这些杆必须承受高水平的压力和热量。随着时间的推移，它们可能会磨损或损坏，导致诸如错位或无法有效传递运动等问题。定期的维护检查可以帮助识别潜在问题，以防止它们升级为更严重的问题，从而影响发动机性能。

在现代发动机中，阀推杆的设计已经显著演变。一些先进的发动机使用液压挺杆，而不是传统的推杆，这可以提供更高效的方式来控制阀门运动。然而，基本原理仍然相同：阀推杆必须确保阀门正常操作，以维持发动机的效率和动力。

总之，阀推杆是内燃机的重要组成部分，在发动机阀门的时机和操作中发挥着关键作用。理解其功能有助于欣赏发动机设计的复杂性以及定期维护的重要性。随着汽车技术的不断进步，阀推杆的角色可能会演变，但其基本目的将保持不变：确保发动机平稳高效运行。对这一组件的妥善护理和理解，可以提高车辆性能和寿命，使其成为汽车爱好者和普通驾驶者都必须掌握的重要知识。