four-cylinder triple-expansion engine

简明释义

四缸三胀式蒸汽机

英英释义

例句

1.During the museum tour, we learned about the history of the four-cylinder triple-expansion engine and its impact on maritime technology.

在博物馆的参观中，我们了解了四缸三重膨胀发动机的历史及其对海洋技术的影响。

2.Engineers often prefer a four-cylinder triple-expansion engine for applications requiring high torque at low speeds.

工程师们通常选择四缸三重膨胀发动机用于需要低速高扭矩的应用。

3.Many vintage steamships are equipped with a four-cylinder triple-expansion engine, showcasing engineering ingenuity from the early 20th century.

许多复古蒸汽船都配备有四缸三重膨胀发动机，展示了20世纪初的工程才智。

4.The ship was powered by a four-cylinder triple-expansion engine, which provided excellent efficiency for long voyages.

这艘船由一台四缸三重膨胀发动机驱动，为长途航行提供了优良的效率。

5.The performance of the four-cylinder triple-expansion engine was superior to that of its two-cylinder counterparts in terms of power output.

在功率输出方面，四缸三重膨胀发动机的性能优于其双缸同类产品。

作文

The advent of the industrial revolution marked a significant turning point in human history, particularly in the field of engineering and transportation. Among the many innovations that emerged during this period, the four-cylinder triple-expansion engine stands out as a remarkable achievement. This type of engine played a crucial role in the development of steam-powered ships and locomotives, which transformed the way goods and people were transported across vast distances.To understand the significance of the four-cylinder triple-expansion engine, it is essential to break down its components. The term 'four-cylinder' refers to the engine's design, which incorporates four separate cylinders. Each cylinder plays a vital role in the overall efficiency and power output of the engine. By having multiple cylinders, the engine can produce a smoother and more continuous power delivery, which is particularly important for large vessels that require consistent thrust to navigate through water.The 'triple-expansion' aspect of the engine refers to the process by which steam is used to generate power. In a triple-expansion engine, steam is allowed to expand three times within the engine's cylinders. Initially, high-pressure steam enters the first cylinder, where it expands and does work on the piston. After this initial expansion, the steam is transferred to a second cylinder, where it expands further at a lower pressure. Finally, the steam moves to a third cylinder, allowing for yet another expansion before it is exhausted. This multi-stage expansion process significantly increases the overall efficiency of the engine, as it extracts more energy from the steam than a single expansion engine could.One of the key advantages of the four-cylinder triple-expansion engine is its ability to operate efficiently over a wide range of speeds. This versatility made it an ideal choice for marine applications, where varying conditions require different power outputs. For example, a ship may need to travel at high speeds to reach a destination quickly, but it may also need to slow down or maneuver carefully in congested ports. The design of the four-cylinder engine allows for quick adjustments in power, making it suitable for these diverse situations.Moreover, the four-cylinder triple-expansion engine was not only efficient but also relatively compact compared to other engines of its time. This compactness allowed for more space on ships for cargo or passengers, which was a significant advantage in the competitive shipping industry. As a result, many shipping companies adopted this engine design, leading to its widespread use during the late 19th and early 20th centuries.In conclusion, the four-cylinder triple-expansion engine represents a remarkable fusion of engineering ingenuity and practical application. Its innovative design and efficient steam expansion process revolutionized maritime transportation and set the stage for future advancements in engine technology. Understanding the mechanics and benefits of this engine not only provides insight into the industrial era but also highlights the ongoing evolution of engineering solutions that continue to influence modern transportation today. As we look back at the contributions of the four-cylinder triple-expansion engine, we are reminded of the importance of innovation and adaptability in the face of changing technological landscapes.

工业革命的到来标志着人类历史的一个重要转折点，特别是在工程和交通运输领域。在这一时期出现的众多创新中，四缸三重膨胀发动机作为一项卓越的成就脱颖而出。这种类型的发动机在蒸汽动力船舶和机车的发展中发挥了至关重要的作用，改变了货物和人员在广阔距离上的运输方式。要理解四缸三重膨胀发动机的重要性，首先需要分解其组成部分。“四缸”一词指的是发动机的设计，它包含四个独立的气缸。每个气缸在发动机的整体效率和功率输出中都起着至关重要的作用。通过多个气缸，发动机可以产生更平稳和更连续的功率输出，这对于需要持续推力以在水中航行的大型船只尤为重要。“三级膨胀”方面则是指利用蒸汽产生动力的过程。在三级膨胀发动机中，蒸汽被允许在发动机的气缸内膨胀三次。最初，高压蒸汽进入第一个气缸，在那里它膨胀并对活塞做功。在这次初步膨胀之后，蒸汽被转移到第二个气缸，在那里它以较低的压力进一步膨胀。最后，蒸汽移动到第三个气缸，允许其在排气之前进行最后一次膨胀。这个多阶段膨胀过程显著提高了发动机的整体效率，因为它从蒸汽中提取的能量比单次膨胀发动机能够提取的更多。四缸三重膨胀发动机的一个主要优点是它能够在广泛的速度范围内高效运行。这种多功能性使其成为海洋应用的理想选择，因为不同的条件需要不同的功率输出。例如，一艘船可能需要以高速行驶以快速到达目的地，但在拥挤的港口中，它也可能需要减速或小心操控。四缸发动机的设计允许快速调整功率，使其适合这些多样化的情况。此外，四缸三重膨胀发动机不仅高效，而且与当时其他发动机相比相对紧凑。这种紧凑性为船舶上提供了更多的货物或乘客空间，这是在竞争激烈的航运行业中的一个重要优势。因此，许多航运公司采用了这种发动机设计，导致其在19世纪末和20世纪初的广泛使用。总之，四缸三重膨胀发动机代表了工程创造力与实用应用的非凡结合。其创新设计和高效的蒸汽膨胀过程彻底改变了海洋运输，并为未来的发动机技术进步奠定了基础。理解这种发动机的机械原理和优点，不仅提供了对工业时代的洞察，还突显了在不断变化的技术环境中创新和适应的重要性。当我们回顾四缸三重膨胀发动机的贡献时，我们被提醒了在面对技术变革时，创新和适应能力的重要性。