double-acting engine

简明释义

双作用式发动机

英英释义

例句

1.Many modern locomotives use a double-acting engine 双作用发动机 to improve fuel efficiency.

许多现代机车使用双作用发动机以提高燃油效率。

2.The double-acting engine 双作用发动机 can utilize both the upward and downward strokes of the piston to generate power.

双作用发动机可以利用活塞的上行和下行冲程来产生动力。

3.The design of a double-acting engine 双作用发动机 allows for more compact machinery in industrial applications.

双作用发动机的设计使得在工业应用中可以实现更紧凑的机械设备。

4.In marine applications, a double-acting engine 双作用发动机 is preferred for its power and reliability.

在海洋应用中，双作用发动机因其功率和可靠性而受到青睐。

5.The efficiency of a double-acting engine 双作用发动机 is often higher than that of a single-acting engine.

双作用发动机的效率通常高于单作用发动机。

作文

The development of the steam engine marked a significant turning point in the history of technology and engineering. Among the various types of steam engines, the double-acting engine stands out due to its efficiency and effectiveness in converting steam energy into mechanical work. A double-acting engine (双作用发动机) is designed to utilize both sides of the piston for power generation, allowing it to produce work during both strokes of the piston cycle. This design not only increases the power output but also enhances the overall efficiency of the engine compared to single-acting engines.The principle behind the double-acting engine is relatively simple yet ingenious. In a typical single-acting engine, steam is admitted to one side of the piston while the other side is exhausted, resulting in power being generated only during one half of the cycle. In contrast, the double-acting engine allows steam to enter both sides of the piston alternately, effectively doubling the power strokes within the same time frame. This means that for every complete cycle of the piston, work is done on both the forward and backward strokes, making it more powerful and efficient.Historically, the double-acting engine was crucial during the Industrial Revolution, as it enabled industries to operate machinery more efficiently. Factories could produce goods at a faster rate, leading to increased productivity and lower costs. The ability to harness steam power effectively through this engine type allowed for the development of larger machines, such as locomotives and ships, which were pivotal in transforming transportation and commerce.In addition to its historical significance, the double-acting engine has applications in modern engineering as well. While steam engines are less common today, the principles of double-acting mechanisms can be found in various modern internal combustion engines and hydraulic systems. For instance, many large-scale industrial compressors utilize a double-acting design to maximize efficiency and output.The engineering design of a double-acting engine involves careful consideration of materials, dimensions, and operational parameters. Engineers must ensure that the components can withstand the high pressures and temperatures associated with steam operation. Moreover, the balancing of forces in a double-acting engine is critical to minimize vibrations and wear, which can lead to mechanical failure over time.In conclusion, the double-acting engine represents a remarkable achievement in engineering that has had a lasting impact on technology and industry. Its unique ability to generate power from both sides of the piston not only improves efficiency but also revolutionizes the way machines operate. Understanding the mechanics and implications of the double-acting engine provides valuable insights into the evolution of engineering practices and the ongoing quest for more efficient energy conversion methods. As we continue to innovate and seek sustainable solutions, the lessons learned from the double-acting engine will undoubtedly play a role in shaping the future of engineering.

蒸汽机的发展标志着技术和工程历史上的一个重要转折点。在各种类型的蒸汽机中，双作用发动机因其高效和有效地将蒸汽能量转化为机械功而脱颖而出。双作用发动机（double-acting engine）旨在利用活塞的两侧进行发电，从而使其能够在活塞循环的两个冲程中产生功。这种设计不仅增加了功率输出，还提高了发动机的整体效率，相较于单作用发动机而言。双作用发动机的原理相对简单却极具巧妙性。在典型的单作用发动机中，蒸汽被引入活塞的一侧，而另一侧则排气，从而导致功率仅在一个周期的半段内产生。相比之下，双作用发动机允许蒸汽交替进入活塞的两侧，有效地在同一时间框架内加倍功率冲程。这意味着在活塞的每个完整循环中，正向和反向冲程都能产生功，使其更强大且高效。历史上，双作用发动机在工业革命中至关重要，因为它使工业能够更高效地运作机械。工厂能够以更快的速度生产商品，从而提高生产力并降低成本。通过这种发动机类型有效地利用蒸汽动力，使得大型机器的发展成为可能，例如机车和船只，这在交通和商业的变革中起到了关键作用。除了历史意义外，双作用发动机在现代工程中也有应用。虽然蒸汽机在今天不再常见，但双作用机制的原理可以在各种现代内燃机和液压系统中找到。例如，许多大型工业压缩机采用双作用设计以最大化效率和输出。双作用发动机的工程设计涉及对材料、尺寸和操作参数的仔细考虑。工程师必须确保组件能够承受与蒸汽操作相关的高压和高温。此外，双作用发动机中力的平衡对于最小化振动和磨损至关重要，这些因素可能会导致随时间推移的机械故障。总之，双作用发动机代表了工程领域的一个显著成就，对技术和工业产生了持久的影响。其独特的能力使得活塞的两侧均能产生功，不仅提高了效率，还彻底改变了机器的运作方式。理解双作用发动机的机制及其影响为我们提供了对工程实践演变的宝贵见解，以及对更高效能源转化方法的持续探索。随着我们继续创新并寻求可持续解决方案，从双作用发动机中学到的经验教训无疑将在塑造未来工程方面发挥作用。