vacuum brake

简明释义

真空制动器

英英释义

例句

1.The train uses a vacuum brake to ensure a smooth stop.

火车使用真空制动来确保平稳停车。

2.He explained how the vacuum brake works in detail during the training session.

在培训会上，他详细解释了真空制动的工作原理。

3.The safety features of the vacuum brake make it a reliable choice for railways.

由于安全特性，真空制动成为铁路的可靠选择。

4.The vacuum brake system is essential for heavy freight trains.

对于重载货运列车，真空制动系统是必不可少的。

5.During the inspection, we found that the vacuum brake was not functioning properly.

在检查过程中，我们发现真空制动工作不正常。

作文

The development of transportation has significantly evolved over the years, with various innovations improving safety and efficiency. One such innovation is the vacuum brake, which has played a crucial role in the braking systems of trains and other heavy vehicles. The vacuum brake system operates on the principle of creating a vacuum to assist in applying the brakes, thereby ensuring that the vehicle can stop safely and effectively. This technology was first introduced in the late 19th century and has since undergone numerous enhancements to improve its performance and reliability.To understand how the vacuum brake works, it is essential to grasp the basic mechanics involved. The system consists of a brake cylinder connected to a vacuum source, typically created by a steam engine or a dedicated vacuum pump. When the driver wants to apply the brakes, air is released from the brake cylinder, creating a vacuum. This vacuum then pulls a piston, which engages the brake shoes against the wheels, slowing down the train. The simplicity and effectiveness of this system made it a popular choice for many railway companies.One of the main advantages of the vacuum brake is its ability to provide a gradual and controlled application of brakes. Unlike traditional mechanical brakes, which can be abrupt and harsh, the vacuum brake allows for smoother deceleration, reducing wear and tear on both the braking system and the tracks. This characteristic is particularly important for long trains, where the momentum can make stopping quickly a challenge. By using a vacuum brake, train operators can ensure a safer journey for passengers and cargo alike.However, the vacuum brake system is not without its drawbacks. One significant limitation is its reliance on a continuous vacuum supply. If there is a failure in the vacuum system, the brakes may not function correctly, leading to potential safety hazards. Additionally, the vacuum brake is less effective at lower speeds, which can be problematic in certain situations. As a result, many modern trains have adopted dual braking systems that incorporate both vacuum brakes and air brakes to maximize safety and performance.Despite these challenges, the vacuum brake remains an essential component of many railway systems around the world. Its historical significance cannot be understated, as it paved the way for more advanced braking technologies. Today, while newer systems like air brakes have become more prevalent, the principles behind the vacuum brake still inform the design and operation of braking systems in various vehicles.In conclusion, the vacuum brake represents a significant advancement in transportation technology. Its ability to provide controlled braking has improved the safety and efficiency of trains over the years. While modern innovations have introduced new systems, the vacuum brake continues to be a vital part of railway history and engineering. Understanding its operation and significance helps us appreciate the progress made in transport safety and technology, ultimately leading to a better and safer travel experience for everyone. As we move forward, it is essential to recognize and learn from these historical developments to continue improving the systems we rely on today.

交通运输的发展随着岁月的推移而显著演变，各种创新提高了安全性和效率。其中一种创新是真空制动器，它在火车和其他重型车辆的制动系统中发挥了至关重要的作用。真空制动器系统的工作原理是通过创造真空来辅助施加制动，从而确保车辆能够安全有效地停车。这项技术首次在19世纪末引入，经过多次改进，以提高其性能和可靠性。要理解真空制动器的工作原理，首先必须掌握其中涉及的基本机械原理。该系统由一个与真空源相连的制动气缸组成，通常由蒸汽机或专用真空泵产生。当司机想要施加制动时，空气从制动气缸中释放，产生真空。然后，这个真空拉动活塞，使制动鞋与车轮接触，从而减缓火车的速度。这一系统的简单性和有效性使其成为许多铁路公司的热门选择。真空制动器的主要优点之一是能够提供渐进和可控的制动施加。与传统的机械制动器相比，后者可能会突然且猛烈，真空制动器允许更平滑的减速，减少制动系统和轨道的磨损。这一特性对于长列火车尤为重要，因为其动量使得快速停车成为挑战。通过使用真空制动器，火车操作员可以确保乘客和货物的安全旅程。然而，真空制动器系统并非没有缺陷。一个显著的限制是它对持续真空供应的依赖。如果真空系统出现故障，制动可能无法正常工作，从而导致潜在的安全隐患。此外，真空制动器在低速时效果较差，这在某些情况下可能会造成问题。因此，许多现代火车采用双重制动系统，结合了真空制动器和空气制动器，以最大限度地提高安全性和性能。尽管面临这些挑战，真空制动器仍然是世界许多铁路系统的重要组成部分。其历史意义不容小觑，因为它为更先进的制动技术铺平了道路。如今，虽然更新的系统如空气制动器变得更加普遍，但真空制动器背后的原理仍然影响着各种车辆的制动系统设计和操作。总之，真空制动器代表了交通技术的一项重大进步。其提供可控制动的能力提高了多年来火车的安全性和效率。虽然现代创新引入了新系统，但真空制动器仍然是铁路历史和工程的重要组成部分。理解其操作和重要性帮助我们欣赏交通安全和技术的进步，最终为每个人提供更好、更安全的旅行体验。在未来的发展中，认识并学习这些历史发展至关重要，以继续改善我们今天所依赖的系统。