rocker arm

简明释义

摇杆

英英释义

例句

1.A faulty rocker arm can lead to poor valve timing and reduced engine efficiency.

故障的摇臂可能导致气门定时不良和发动机效率降低。

2.During the inspection, we found that the rocker arm was misaligned.

在检查中，我们发现摇臂对齐不正确。

3.The rocker arm plays a crucial role in opening and closing the engine valves.

摇臂在开启和关闭发动机气门中起着至关重要的作用。

4.He adjusted the tension on the rocker arm to improve the engine's responsiveness.

他调整了摇臂的张力，以提高发动机的响应能力。

5.The mechanic replaced the broken rocker arm to restore the engine's performance.

机械师更换了损坏的摇臂以恢复发动机的性能。

作文

The internal combustion engine is a marvel of engineering, utilizing various components to convert fuel into motion. One of the critical parts of this system is the rocker arm, which plays a vital role in the operation of the engine's valvetrain. Understanding the function and importance of the rocker arm can enhance our appreciation of how engines work and why they are designed the way they are.A rocker arm is a lever that translates the linear motion of the engine's camshaft into the vertical movement needed to open and close the engine's valves. In simpler terms, when the camshaft rotates, it pushes against the rocker arm, causing it to pivot at a fulcrum. This pivoting action then pushes down on a valve stem, allowing the valve to open and close at the correct times during the engine cycle.The design of the rocker arm is crucial for efficient engine performance. It must be lightweight yet strong enough to withstand the forces exerted on it during operation. Many modern engines use aluminum or composite materials for rocker arms to reduce weight without sacrificing strength. Additionally, the shape and length of the rocker arm can affect the timing and lift of the valves, impacting the overall performance of the engine.In high-performance engines, adjustable rocker arms are often used to fine-tune the engine's performance characteristics. By altering the ratio of the rocker arm, engineers can change how much the valve opens relative to the movement of the camshaft, allowing for greater customization based on the engine's intended use. This adaptability is particularly important in racing applications, where every fraction of a second counts.Maintenance of the rocker arm is also essential for the longevity of an engine. Over time, wear and tear can occur, leading to reduced performance or even engine failure. Regular checks and adjustments can help ensure that the rocker arms are functioning correctly and that the engine maintains optimal performance levels. Mechanics often inspect rocker arms for signs of damage, such as cracks or excessive wear, and replace them as necessary to keep the engine running smoothly.In conclusion, the rocker arm is a small but mighty component of the internal combustion engine. Its ability to convert motion and control valve timing is essential for the engine's overall functionality. By understanding the role of the rocker arm, we gain insight into the complexities of engine design and the importance of each part working in harmony. Whether in everyday vehicles or high-performance machines, the rocker arm remains a fundamental element that keeps our engines running efficiently and effectively.

内燃机是一项工程奇迹，利用各种组件将燃料转化为运动。这个系统的关键部分之一是摇臂，它在发动机气门传动系统的运作中发挥着重要作用。理解摇臂的功能和重要性，可以增强我们对发动机工作原理的欣赏，以及它们为何如此设计。摇臂是一种杠杆，它将发动机凸轮轴的线性运动转化为打开和关闭发动机气门所需的垂直运动。简单来说，当凸轮轴旋转时，它会推压摇臂，使其在支点处 pivot。这种支点动作然后向下推压阀杆，使阀门在发动机周期的正确时刻打开和关闭。摇臂的设计对发动机性能的效率至关重要。它必须轻便，但又足够强大以承受在操作过程中施加的力量。许多现代发动机使用铝或复合材料制造摇臂，以减少重量而不牺牲强度。此外，摇臂的形状和长度可以影响阀门的时机和升程，从而影响发动机的整体性能。在高性能发动机中，通常使用可调式摇臂来微调发动机的性能特征。通过改变摇臂的比率，工程师可以改变阀门相对于凸轮轴运动的开启程度，从而根据发动机的预定用途进行更大的定制。这种适应性在赛车应用中尤为重要，因为每一毫秒都至关重要。摇臂的维护对于发动机的使用寿命也至关重要。随着时间的推移，磨损可能会发生，导致性能下降甚至发动机故障。定期检查和调整可以确保摇臂正常工作，使发动机保持最佳性能水平。机械师通常会检查摇臂是否有损坏迹象，如裂纹或过度磨损，并在必要时更换它们，以保持发动机平稳运行。总之，摇臂是内燃机中一个小但强大的组件。它转换运动和控制气门时机的能力对于发动机的整体功能至关重要。通过理解摇臂的作用，我们可以深入了解发动机设计的复杂性以及每个部件协调工作的重要性。无论是在日常车辆还是高性能机器中，摇臂始终是保持我们的发动机高效、有效运行的基本元素。