double acting engine

简明释义

双动发动机

英英释义

例句

1.In marine applications, a double acting engine can provide greater torque and performance.

在海洋应用中，双作用发动机可以提供更大的扭矩和性能。

2.Many modern ships are equipped with a double acting engine for better fuel economy.

许多现代船只配备了双作用发动机以获得更好的燃油经济性。

3.The maintenance costs for a double acting engine are often lower than those for a single acting engine.

双作用发动机的维护成本通常低于单作用发动机。

4.The double acting engine is known for its ability to utilize both sides of the piston stroke.

双作用发动机以其能够利用活塞行程的两侧而闻名。

5.The new design of the double acting engine allows for improved efficiency in power generation.

新设计的双作用发动机提高了发电效率。

作文

The concept of a double acting engine is fundamental in the field of mechanical engineering and thermodynamics. A double acting engine refers to an engine that utilizes both sides of its piston for power generation. This means that the engine can produce work on both the forward and backward strokes of the piston, making it more efficient than single-acting engines, which only utilize one side. The design of a double acting engine allows for a continuous power stroke, which is particularly advantageous in applications requiring consistent and reliable energy output.One of the most common types of double acting engines is the reciprocating steam engine. In this engine, steam is admitted to both sides of the piston alternately, allowing for the piston to move in both directions. This dual action results in a smoother operation and increased output power. The double acting engine design is not limited to steam engines; it is also found in internal combustion engines, where the combustion process occurs on both sides of the piston, further enhancing efficiency.The advantages of double acting engines are numerous. Firstly, they provide a higher power-to-weight ratio, meaning that they can produce more power without significantly increasing their size or weight. This makes them ideal for use in various applications, from locomotives to marine engines. Additionally, the continuous power stroke of a double acting engine reduces the need for heavy flywheels, which are often required in single-acting designs to smooth out the power delivery.Furthermore, double acting engines tend to have lower vibration levels due to their balanced operation. This is especially important in applications where smooth operation is critical, such as in large ships or industrial machinery. The reduced vibration also leads to less wear and tear on the engine components, resulting in lower maintenance costs and longer service life.However, double acting engines are not without their challenges. The complexity of their design can lead to higher manufacturing costs and more intricate maintenance requirements. Engineers must carefully consider these factors when designing systems that incorporate double acting engines. Despite these challenges, their benefits often outweigh the drawbacks, making them a popular choice in many engineering applications.In conclusion, the double acting engine represents a significant advancement in engine technology. Its ability to harness power from both sides of the piston offers numerous advantages in terms of efficiency, power output, and operational smoothness. As technology continues to evolve, the principles behind double acting engines will likely inspire new innovations in various fields, paving the way for even more efficient and powerful engines in the future. Understanding the mechanics and applications of a double acting engine is essential for anyone interested in engineering, as it highlights the ingenuity and progress in the quest for more effective energy solutions.

双作用发动机的概念在机械工程和热力学领域中是基础性的。双作用发动机是指一种利用活塞两侧产生动力的发动机。这意味着发动机可以在活塞的前后行程中产生工作，使其比只利用一侧的单作用发动机更高效。双作用发动机的设计允许连续的动力冲程，这在需要一致和可靠的能量输出的应用中尤其有利。最常见的双作用发动机类型之一是往复蒸汽机。在这种发动机中，蒸汽交替地进入活塞的两侧，从而使活塞在两个方向上移动。这种双重动作导致操作更平稳，输出功率增加。双作用发动机的设计不仅限于蒸汽机；它也出现在内燃机中，其中燃烧过程发生在活塞的两侧，进一步提高了效率。双作用发动机的优点很多。首先，它们提供更高的功率重量比，这意味着它们可以在不显著增加尺寸或重量的情况下产生更多的功率。这使得它们非常适合用于各种应用，从机车到船舶发动机。此外，双作用发动机的连续动力冲程减少了对重飞轮的需求，而重飞轮通常在单作用设计中用于平滑功率输出。此外，由于平衡操作，双作用发动机的振动水平往往较低。这在平稳操作至关重要的应用中尤为重要，例如大型船舶或工业机械。减少的振动也导致发动机部件的磨损减少，从而降低维护成本并延长使用寿命。然而，双作用发动机并非没有挑战。其设计的复杂性可能导致更高的制造成本和更复杂的维护要求。工程师在设计包含双作用发动机的系统时必须仔细考虑这些因素。尽管存在这些挑战，其优势往往超过缺点，使其成为许多工程应用中的热门选择。总之，双作用发动机代表了发动机技术的重要进步。其能够利用活塞两侧的动力提供了效率、功率输出和操作平稳性方面的众多优势。随着技术的不断发展，双作用发动机背后的原理很可能会激励各个领域的新创新，为未来更高效、更强大的发动机铺平道路。理解双作用发动机的机械原理和应用对于任何对工程感兴趣的人来说都是至关重要的，因为它突显了在追求更有效的能源解决方案方面的聪明才智和进步。