two cycle engine

简明释义

二冲程发动机

英英释义

例句

1.When maintaining a two cycle engine, it's important to mix oil with the fuel.

在维护二冲程发动机时，重要的是将油与燃料混合。

2.A two cycle engine typically produces more power in a smaller size compared to a four-stroke engine.

二冲程发动机通常在体积更小的情况下产生比四冲程发动机更多的功率。

3.Many chainsaws use a two cycle engine for better power-to-weight ratio.

许多链锯使用二冲程发动机以获得更好的功率重量比。

4.The small outboard motor features a two cycle engine for quick acceleration.

这款小型舷外机配备了一个二冲程发动机，加速迅速。

5.The lawnmower is powered by a two cycle engine, which is lightweight and efficient.

这款割草机由一个二冲程发动机驱动，轻便且高效。

作文

The world of engines is vast and varied, with different types serving different purposes. One such type is the two cycle engine, known for its simplicity and efficiency. A two cycle engine (两冲程发动机) operates on a two-stroke cycle, which means it completes a power cycle in just two strokes of the piston, unlike its four-stroke counterpart that requires four strokes. This unique design allows the two cycle engine to produce power more frequently, making it ideal for applications where weight and size are critical factors.One of the most significant advantages of the two cycle engine is its lightweight construction. Because it has fewer components than a four-stroke engine, it is easier to manufacture and maintain. This makes it particularly popular in small machines such as chainsaws, lawn mowers, and outboard motors. The compact size of the two cycle engine also contributes to its popularity in portable equipment, where space is at a premium.However, the two cycle engine is not without its drawbacks. One of the main issues is fuel efficiency. Since the engine burns a mixture of oil and fuel, it tends to consume more fuel than a four-stroke engine. Additionally, the emissions from a two cycle engine can be higher due to incomplete combustion, leading to environmental concerns. As regulations around emissions become stricter, manufacturers are working to improve the efficiency and reduce the environmental impact of these engines.Another characteristic of the two cycle engine is its power-to-weight ratio. This engine type is capable of delivering high power output relative to its size, which is a significant advantage in applications requiring quick acceleration or high speed. For example, many racing motorcycles use two cycle engines because they can achieve high speeds in a lightweight package.Despite the challenges faced by two cycle engines, they continue to be used in various industries. In recent years, there have been advancements in technology that aim to reduce emissions while maintaining the benefits of the two cycle engine. Innovations such as electronic fuel injection and improved exhaust systems are helping to make these engines cleaner and more efficient.In summary, the two cycle engine (两冲程发动机) is a fascinating piece of engineering that offers both advantages and disadvantages. Its lightweight design and high power-to-weight ratio make it suitable for many applications, especially where portability is essential. However, challenges such as fuel efficiency and emissions must be addressed as we move towards a more environmentally conscious future. As technology continues to evolve, the two cycle engine may well adapt to meet new standards and remain a viable option in the world of engines.

发动机的世界广阔而多样，不同类型的发动机服务于不同的目的。其中一种类型是两冲程发动机，以其简单和高效而闻名。两冲程发动机（two cycle engine）在一个两冲程周期内完成动力循环，这意味着它只需两个活塞行程即可完成一个动力循环，而与之相对的四冲程发动机则需要四个行程。这种独特的设计使得两冲程发动机能够更频繁地产生动力，使其非常适合对重量和体积有严格要求的应用。两冲程发动机的一个显著优点是其轻量化构造。由于其部件比四冲程发动机少，因此制造和维护都更为简单。这使得它在小型机器中尤其受欢迎，例如链锯、割草机和船外机。两冲程发动机的紧凑尺寸也使其在便携设备中广受欢迎，因为在这些设备中空间非常有限。然而，两冲程发动机并非没有缺点。主要问题之一是燃油效率。由于发动机燃烧油和燃料的混合物，因此它的燃油消耗往往超过四冲程发动机。此外，由于燃烧不完全，两冲程发动机的排放可能更高，这引发了环境方面的担忧。随着关于排放的法规变得更加严格，制造商正在努力提高这些发动机的效率并减少对环境的影响。两冲程发动机的另一个特点是其功率重量比。这种类型的发动机能够提供相对于其大小的高功率输出，这在需要快速加速或高速的应用中具有显著优势。例如，许多赛车摩托车使用两冲程发动机，因为它们可以在轻量化的情况下达到高速。尽管面临挑战，两冲程发动机仍继续在各个行业中使用。近年来，技术的进步旨在在保持两冲程发动机优点的同时减少排放。电子燃油喷射和改进的排气系统等创新正在帮助使这些发动机更加清洁和高效。总之，两冲程发动机（two cycle engine）是一项令人着迷的工程作品，提供了优缺点。其轻量化设计和高功率重量比使其适合许多应用，特别是在便携性至关重要的情况下。然而，随着我们朝着更环保的未来迈进，燃油效率和排放等挑战必须得到解决。随着技术的不断发展，两冲程发动机可能会适应新标准，并在发动机世界中继续保持可行选项。