valve tappet clearance

简明释义

气门挺杆间隙

英英释义

例句

1.A misadjusted valve tappet clearance 气门间隙 can lead to increased engine noise and reduced efficiency.

调整不当的valve tappet clearance 气门间隙可能会导致引擎噪音增大和效率降低。

2.If the valve tappet clearance 气门间隙 is too tight, it may cause the valves to not close properly.

如果valve tappet clearance 气门间隙过紧，可能会导致气门无法正常关闭。

3.Regular maintenance includes checking the valve tappet clearance 气门间隙 to prevent engine damage.

定期维护包括检查valve tappet clearance 气门间隙以防止引擎损坏。

4.The mechanic recommended adjusting the valve tappet clearance 气门间隙 after every 10,000 miles.

机械师建议每行驶10000英里后调整一次valve tappet clearance 气门间隙。

5.Before starting the engine, it's crucial to check the valve tappet clearance 气门间隙 to ensure optimal performance.

在启动引擎之前，检查一下valve tappet clearance 气门间隙是确保最佳性能的关键。

作文

Understanding the concept of valve tappet clearance is crucial for anyone involved in automotive mechanics or engine maintenance. The term refers to the gap between the valve tappet and the engine valve stem when the engine is at rest. This clearance is significant because it ensures that the engine operates smoothly and efficiently. If the valve tappet clearance is too small, the valves may not close completely, leading to a loss of compression and power. Conversely, if the clearance is too large, it can cause excessive wear on the components, resulting in noise and potential engine damage.To appreciate the importance of valve tappet clearance, one must first understand the function of the tappet itself. The tappet, also known as a valve lifter, is a component that transmits the motion from the camshaft to the engine valves. As the camshaft rotates, it pushes the tappet upward, which in turn opens the valve. Once the camshaft moves past the peak of the lobe, the tappet falls back down, allowing the valve to close. This process is vital for the intake and exhaust cycles of the engine, and any disruption can lead to performance issues.Regular maintenance includes checking and adjusting the valve tappet clearance to ensure optimal engine performance. Mechanics typically use feeler gauges to measure the clearance accurately. The specifications for the proper clearance can usually be found in the vehicle’s service manual. It is recommended to check this clearance periodically, especially in high-performance engines or older vehicles where wear and tear might affect the components more significantly.When adjusting the valve tappet clearance, it is essential to do so when the engine is cold. This is because metal expands when heated, which can lead to inaccurate measurements if the engine is hot. The adjustment process involves loosening the lock nut on the tappet, turning the adjusting screw to achieve the desired clearance, and then tightening the lock nut back in place. This task requires precision and care, as improper adjustments can lead to severe engine problems.In conclusion, the valve tappet clearance is a fundamental aspect of engine maintenance that should not be overlooked. Understanding its significance can help vehicle owners maintain their cars better and avoid costly repairs. Regular checks and adjustments of the valve tappet clearance can enhance engine performance, improve fuel efficiency, and extend the lifespan of the engine components. Therefore, whether you are a professional mechanic or a car enthusiast, gaining a thorough understanding of valve tappet clearance is essential for effective engine management and maintenance.

理解气门挺杆间隙的概念对于任何参与汽车机械或发动机维护的人来说都是至关重要的。这个术语指的是当发动机静止时，气门挺杆与发动机气门杆之间的间隙。这种间隙是重要的，因为它确保发动机平稳高效地运行。如果气门挺杆间隙过小，气门可能无法完全关闭，从而导致压缩和动力损失。相反，如果间隙过大，可能会导致组件过度磨损，产生噪音并可能造成发动机损坏。为了理解气门挺杆间隙的重要性，首先必须了解挺杆本身的功能。挺杆，也称为气门升降器，是一个将凸轮轴的运动传递到发动机气门的组件。当凸轮轴旋转时，它向上推动挺杆，从而打开气门。一旦凸轮轴越过隆起的最高点，挺杆就会落回下方，允许气门关闭。这个过程对于发动机的进气和排气循环至关重要，任何干扰都可能导致性能问题。定期维护包括检查和调整气门挺杆间隙以确保最佳的发动机性能。机械师通常使用塞尺来准确测量间隙。适当间隙的规格通常可以在车辆的服务手册中找到。建议定期检查这一间隙，特别是在高性能发动机或老旧车辆上，因为磨损可能会对组件产生更显著的影响。在调整气门挺杆间隙时，务必在发动机冷却时进行。这是因为金属加热时会膨胀，如果发动机过热，可能会导致测量不准确。调整过程涉及松开挺杆上的锁紧螺母，转动调整螺钉以达到所需的间隙，然后再将锁紧螺母拧回到位。这个任务需要精确和小心，因为不当的调整可能导致严重的发动机问题。总之，气门挺杆间隙是发动机维护的一个基本方面，不应被忽视。理解其重要性可以帮助车辆拥有者更好地维护他们的汽车，避免高昂的维修费用。定期检查和调整气门挺杆间隙可以提高发动机性能，改善燃油效率，并延长发动机组件的使用寿命。因此，无论您是专业机械师还是汽车爱好者，深入理解气门挺杆间隙对于有效的发动机管理和维护都是必不可少的。