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.The lawn mower uses a two stroke engine 二冲程发动机 to provide more power in a lighter package.

这款割草机使用二冲程发动机 two stroke engine，以在更轻的设备中提供更多动力。

3.A two stroke engine 二冲程发动机 typically has fewer moving parts than a four-stroke engine.

与四冲程发动机相比，二冲程发动机 two stroke engine通常具有更少的运动部件。

4.In racing, a two stroke engine 二冲程发动机 is often favored for its lightweight and high power output.

在赛车中，二冲程发动机 two stroke engine因其轻便和高功率输出而受到青睐。

5.The mechanic explained how to tune a two stroke engine 二冲程发动机 for optimal performance.

机械师解释了如何调校二冲程发动机 two stroke engine以获得最佳性能。

作文

The two stroke engine is a type of internal combustion engine that completes a power cycle in just two strokes of the piston, or one crankshaft revolution. This design is notably different from the more common four-stroke engine, which requires four strokes of the piston to complete a power cycle. The two stroke engine is often praised for its simplicity and lightweight nature, making it a popular choice for small machinery and vehicles such as chainsaws, mopeds, and outboard motors.One of the primary advantages of the two stroke engine is its power-to-weight ratio. Because it can produce power on every revolution of the crankshaft, it delivers more power in a smaller package compared to a four-stroke engine. This characteristic makes it particularly appealing for applications where weight and size are critical factors. For instance, in racing motorcycles, the two stroke engine can provide quick acceleration and high performance, which is essential in competitive environments.However, the two stroke engine does come with its drawbacks. One significant issue is fuel efficiency. Since the design allows for some unburned fuel to escape during the exhaust phase, two stroke engines generally consume more fuel than their four-stroke counterparts. This inefficiency not only leads to higher operational costs but also results in increased emissions, which is a growing concern in today’s environmentally conscious world.Another drawback is the wear and tear on the engine components. The two stroke engine relies heavily on oil mixed with fuel for lubrication, which can lead to higher rates of wear compared to four-stroke engines that have dedicated oil systems. This means that while the two stroke engine may be simpler in design, it often requires more frequent maintenance and repairs, impacting long-term reliability.Despite these challenges, advancements in technology have led to improvements in two stroke engine designs. Manufacturers are developing cleaner-burning fuels and better lubrication systems to mitigate some of the environmental impacts. Additionally, innovations such as electronic fuel injection are being integrated into two stroke engines, enhancing their efficiency and performance.In conclusion, the two stroke engine is a fascinating piece of engineering that has carved out a niche in various industries due to its unique characteristics. While it offers advantages in terms of power and size, it also presents challenges in fuel efficiency and maintenance. As technology continues to evolve, it will be interesting to see how the two stroke engine adapts to meet the demands of modern consumers and regulatory standards. Understanding the intricacies of this engine type can help us appreciate its role in the broader context of automotive and machinery development, as well as its impact on our environment and economy.

二冲程发动机是一种内燃机，仅需活塞的两个行程或一个曲轴转动就能完成一个动力循环。这种设计与更常见的四冲程发动机显著不同，后者需要四个活塞行程才能完成一个动力循环。二冲程发动机因其结构简单和重量轻而受到赞誉，使其成为小型机械和交通工具（如链锯、轻便摩托车和舷外发动机）的热门选择。二冲程发动机的主要优点之一是其功率与重量的比率。由于它能够在每次曲轴转动时产生动力，因此在较小的体积内提供更多的动力，相较于四冲程发动机。这一特性使其在对重量和体积要求严格的应用中尤其受欢迎。例如，在赛车摩托车中，二冲程发动机能够提供快速加速和高性能，这在竞争环境中至关重要。然而，二冲程发动机也有其缺点。一个显著的问题是燃油效率。由于设计允许一些未燃烧的燃料在排气阶段逸出，二冲程发动机通常比其四冲程对应物消耗更多的燃料。这种低效率不仅导致更高的运营成本，还造成了更高的排放，这在当今环保意识日益增强的世界中引发了越来越多的关注。另一个缺点是发动机部件的磨损。二冲程发动机严重依赖与燃料混合的油进行润滑，这可能导致相较于拥有专用润滑系统的四冲程发动机，磨损率更高。这意味着虽然二冲程发动机的设计可能更简单，但它通常需要更频繁的维护和修理，从而影响长期可靠性。尽管面临这些挑战，技术的进步已导致二冲程发动机设计的改进。制造商正在开发更清洁的燃料和更好的润滑系统，以减轻一些对环境的影响。此外，电子燃油喷射等创新正在被集成到二冲程发动机中，提高其效率和性能。总之，二冲程发动机是一项迷人的工程作品，由于其独特的特性，在各个行业中占据了一席之地。尽管在功率和体积方面具有优势，但在燃油效率和维护方面也面临挑战。随着技术的不断发展，观察二冲程发动机如何适应现代消费者和监管标准的需求将会很有趣。理解这种发动机类型的复杂性可以帮助我们欣赏其在汽车和机械发展更广泛背景中的作用，以及其对环境和经济的影响。