two-stroke engine

简明释义

二冲程发动机

英英释义

例句

1.Many dirt bikes are equipped with a two-stroke engine 二冲程发动机 for better acceleration.

许多越野摩托车配备了二冲程发动机 two-stroke engine，以获得更好的加速性能。

2.Some model airplanes use a two-stroke engine 二冲程发动机 for increased speed and power.

一些模型飞机使用二冲程发动机 two-stroke engine，以提高速度和动力。

3.The lawnmower uses a two-stroke engine 二冲程发动机 for its lightweight and powerful performance.

这款割草机使用了一个二冲程发动机 two-stroke engine，因其轻便且动力强劲。

4.A two-stroke engine 二冲程发动机 is often simpler to maintain than a four-stroke engine.

与四冲程发动机相比，二冲程发动机 two-stroke engine 通常更容易维护。

5.The chainsaw operates on a two-stroke engine 二冲程发动机, making it lightweight for easy handling.

这款链锯采用了二冲程发动机 two-stroke engine，使其在操作时轻便易用。

作文

The two-stroke engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston during only one crankshaft revolution. This design is distinct from the more common four-stroke engine, which requires four strokes of the piston to complete a cycle. The two-stroke engine is often praised for its simplicity and lightweight construction, making it a popular choice for various applications, especially in smaller machines such as chainsaws, lawnmowers, and motorcycles.One of the primary advantages of the two-stroke engine is its high power-to-weight ratio. Because it produces power with every revolution of the crankshaft, this engine can generate more power in a smaller size compared to a four-stroke engine. This characteristic is particularly beneficial in applications where weight and space are critical factors. For example, in racing motorcycles, the two-stroke engine allows for faster acceleration due to its ability to deliver power more efficiently.Another significant feature of the two-stroke engine is its construction. With fewer moving parts than a four-stroke engine, it is generally easier and cheaper to manufacture. This simplicity also translates into easier maintenance, as there are fewer components that can wear out or fail. However, this design does come with some drawbacks. One major issue is that two-stroke engines tend to be less fuel-efficient and produce more emissions than their four-stroke counterparts. This is primarily due to the fact that they often do not have a dedicated intake and exhaust stroke, leading to unburned fuel being expelled during the exhaust phase.In terms of environmental impact, the use of two-stroke engines has raised concerns. Many regions have implemented regulations to limit the use of these engines in favor of cleaner alternatives. Innovations in technology have led to the development of more efficient two-stroke engines, but they still struggle to meet the stringent emission standards set by many governments.Despite these challenges, the two-stroke engine remains a vital part of many industries. Its lightweight and powerful design makes it ideal for portable equipment and applications where performance is paramount. In recent years, manufacturers have been exploring ways to enhance the efficiency and reduce the emissions of two-stroke engines, including the use of advanced fuel mixtures and improved combustion techniques.In conclusion, the two-stroke engine is a fascinating piece of engineering that has both strengths and weaknesses. Its ability to provide high power in a compact form has made it indispensable in various fields, from recreational vehicles to industrial machinery. As technology continues to advance, the future of the two-stroke engine may see improvements that address its environmental impact while retaining its performance benefits. Understanding the mechanics and applications of the two-stroke engine is essential for anyone interested in automotive engineering or related fields.

两冲程发动机是一种内燃机，它在一个曲轴旋转中通过活塞的两个冲程完成一个动力循环。这种设计与更常见的四冲程发动机不同，后者需要四个活塞冲程才能完成一个循环。两冲程发动机因其简单性和轻便的构造而受到赞誉，使其成为各种应用的热门选择，尤其是在链锯、割草机和摩托车等小型机器中。两冲程发动机的主要优点之一是其高功率重量比。由于它在每次曲轴旋转时产生动力，这种发动机能够在较小的体积中产生比四冲程发动机更多的动力。这一特性在对重量和空间要求严格的应用中尤为有利。例如，在赛车摩托车中，两冲程发动机由于能更有效地提供动力，从而允许更快的加速。两冲程发动机的另一个显著特点是其构造。与四冲程发动机相比，由于活动部件较少，通常更容易且成本更低地制造。这种简单性也转化为更容易的维护，因为可磨损或失效的组件较少。然而，这种设计确实存在一些缺点。一个主要问题是，两冲程发动机的燃油效率往往较低，排放也高于四冲程发动机。这主要是因为它们通常没有专门的进气和排气冲程，导致未燃烧的燃料在排气阶段被排出。在环境影响方面，使用两冲程发动机引发了人们的关注。许多地区实施了限制这些发动机使用的法规，以支持更清洁的替代方案。技术创新已经导致更高效的两冲程发动机的发展，但它们仍然难以满足许多政府设定的严格排放标准。尽管面临这些挑战，两冲程发动机仍然是许多行业的重要组成部分。其轻便和强大的设计使其在便携设备和性能至关重要的应用中理想。在近年来，制造商一直在探索提高两冲程发动机效率和减少排放的方法，包括使用先进的燃料混合物和改进的燃烧技术。总之，两冲程发动机是一项迷人的工程，其具有优势和劣势。它在紧凑形式中提供高功率的能力使其在休闲车辆到工业机械等多个领域不可或缺。随着技术的不断进步，两冲程发动机的未来可能会看到改善，以解决其对环境的影响，同时保留其性能优势。理解两冲程发动机的机械原理和应用对于任何对汽车工程或相关领域感兴趣的人来说都是必不可少的。