power stroke

简明释义

工程冲程

英英释义

例句

1.During the power stroke 动力冲程, the piston moves down, creating a vacuum that draws in more fuel.

在动力冲程 动力冲程期间，活塞向下移动，产生真空，吸入更多燃料。

2.In a four-stroke engine, there are two power strokes 动力冲程 for every complete cycle.

在四冲程发动机中，每个完整循环有两个动力冲程 动力冲程。

3.The engine's power stroke 动力冲程 is crucial for generating the necessary horsepower.

发动机的动力冲程 动力冲程 对于产生所需的马力至关重要。

4.The timing of the power stroke 动力冲程 is critical to prevent engine knocking.

控制动力冲程 动力冲程的时机对于防止发动机敲击至关重要。

5.The efficiency of the engine can be measured by how effectively it utilizes each power stroke 动力冲程.

发动机的效率可以通过它如何有效利用每个动力冲程 动力冲程来衡量。

作文

The concept of a power stroke is crucial in understanding how various engines operate, particularly internal combustion engines. In simple terms, a power stroke refers to the phase of the engine cycle during which the fuel-air mixture is ignited and expands, pushing the piston down and ultimately generating power. This process is vital for the functioning of vehicles, machinery, and many other applications that rely on engine power. To delve deeper into this concept, let’s consider the four-stroke engine cycle, which consists of four distinct phases: intake, compression, power, and exhaust. During the power phase, also known as the power stroke, the spark plug ignites the compressed fuel-air mixture, causing a rapid expansion of gases. This explosion forces the piston downward, converting chemical energy into mechanical energy. The efficiency of the power stroke directly impacts the overall performance of the engine. One can think of the power stroke as the engine's heartbeat. Each time the engine fires, it completes a power stroke, contributing to the rotation of the crankshaft, which ultimately drives the wheels of the vehicle. The timing and precision of this stroke are essential; any delay or misfire could lead to reduced power output or even engine failure. In addition to traditional gasoline engines, the power stroke concept also applies to diesel engines, where the ignition occurs due to high pressure rather than a spark. This difference in ignition method influences the characteristics of the power stroke, such as its duration and intensity, leading to variations in engine performance and efficiency. Moreover, understanding the power stroke is not only important for engineers and mechanics but also for everyday drivers. Recognizing how the engine works allows drivers to appreciate the importance of proper maintenance, such as ensuring the fuel system is clean and the spark plugs are functioning correctly. A well-maintained engine will have more efficient power strokes, resulting in better fuel economy and performance. In conclusion, the power stroke is a fundamental aspect of engine operation that warrants attention from both technical and non-technical audiences. By grasping the significance of this stroke within the engine cycle, one can gain a deeper appreciation for the complexities of automotive technology. Whether you are a car enthusiast, an engineer, or simply someone who relies on vehicles for transportation, understanding the power stroke will enhance your knowledge of how engines produce the power necessary for motion. This understanding not only enriches one’s technical knowledge but also empowers individuals to make informed decisions regarding vehicle maintenance and performance optimization.

“动力冲程”这一概念对于理解各种发动机的运作至关重要，特别是内燃机。简单来说，“动力冲程”指的是发动机循环中燃料-空气混合物被点燃并膨胀的阶段，推动活塞向下运动，从而产生动力。这个过程对依赖发动机动力的车辆、机械和许多其他应用至关重要。为了更深入地探讨这一概念，让我们考虑四冲程发动机循环，它由四个不同的阶段组成：进气、压缩、动力和排气。在动力阶段，也称为“动力冲程”中，火花塞点燃压缩的燃料-空气混合物，导致气体迅速膨胀。这次爆炸迫使活塞向下移动，将化学能转化为机械能。“动力冲程”的效率直接影响发动机的整体性能。可以把“动力冲程”想象成发动机的心跳。每当发动机点火时，就完成一次“动力冲程”，这有助于曲轴的旋转，最终驱动车辆的轮子。这个冲程的时机和精确性至关重要；任何延迟或失火都可能导致动力输出减少甚至发动机故障。除了传统的汽油发动机外，“动力冲程”概念在柴油发动机中也适用，在柴油发动机中，点火是由于高压而不是火花引起的。这种点火方式的不同影响了“动力冲程”的特性，例如其持续时间和强度，导致发动机性能和效率的变化。此外，理解“动力冲程”不仅对工程师和机械师重要，对普通司机也同样重要。认识到发动机的工作原理使司机能够欣赏适当维护的重要性，例如确保燃油系统清洁和火花塞正常工作。一个维护良好的发动机会有更高效的“动力冲程”，从而提高燃油经济性和性能。总之，“动力冲程”是发动机运作的基本方面，值得技术和非技术观众关注。通过掌握这一冲程在发动机循环中的重要性，人们可以更深入地理解汽车技术的复杂性。无论你是汽车爱好者、工程师，还是仅仅依赖车辆进行交通的人，理解“动力冲程”将增强你对发动机产生必要动力的知识。这种理解不仅丰富了个人的技术知识，还使个人能够就车辆维护和性能优化做出明智的决策。