compression stroke

简明释义

压缩行程

英英释义

例句

1.Adjusting the timing of the compression stroke is crucial for optimal performance.

调整压缩冲程的时机对优化性能至关重要。

2.The efficiency of an engine can be greatly affected by the duration of the compression stroke.

发动机的效率可能会受到压缩冲程持续时间的很大影响。

3.A shorter compression stroke can lead to a decrease in engine power.

较短的压缩冲程可能导致发动机功率下降。

4.During the engine's compression stroke, the piston moves upward, compressing the air-fuel mixture.

在发动机的压缩冲程中，活塞向上移动，压缩空气-燃料混合物。

5.In a four-stroke engine, the compression stroke follows the intake stroke.

在四冲程发动机中，压缩冲程紧随进气冲程之后。

作文

The internal combustion engine is a marvel of engineering that powers many of the vehicles we rely on today. One of the critical phases in the operation of this engine is known as the compression stroke. During this phase, the piston moves upward within the cylinder, compressing the air-fuel mixture that has been drawn in during the previous intake stroke. This compression is vital because it increases the temperature and pressure of the mixture, making it more conducive to combustion. Without an efficient compression stroke, the engine would struggle to ignite the fuel effectively, leading to poor performance and increased emissions.To understand the significance of the compression stroke, we must first look at the four-stroke cycle that governs most internal combustion engines: intake, compression, power, and exhaust. Each of these strokes plays a crucial role in ensuring the engine runs smoothly and efficiently. The intake stroke draws in the air-fuel mixture, while the compression stroke prepares it for ignition. Following this, the power stroke occurs when the spark plug ignites the compressed mixture, creating an explosion that pushes the piston down and produces the power needed to turn the engine’s crankshaft.The efficiency of the compression stroke can significantly affect the overall performance of the engine. Higher compression ratios generally lead to more power output and better fuel efficiency. However, there is a limit to how much compression can be applied before the fuel begins to pre-ignite, which can cause knocking and damage the engine. Engineers must carefully balance these factors when designing engines to optimize performance while maintaining reliability.Moreover, advancements in technology have led to the development of variable compression ratio engines. These innovative designs allow the engine to adjust the compression ratio dynamically during operation, optimizing performance based on driving conditions. Such technology highlights the importance of the compression stroke and its role in modern automotive engineering.In conclusion, the compression stroke is a fundamental aspect of the internal combustion engine's operation. It plays a crucial role in preparing the air-fuel mixture for combustion, which ultimately determines the engine's performance and efficiency. Understanding this process is essential for anyone interested in automotive technology, as it reveals the intricate workings of one of the most widely used machines in our daily lives. As we continue to innovate and improve engine technology, the compression stroke will remain a key focus for engineers aiming to enhance performance while reducing environmental impact.

内燃机是工程的奇迹，驱动着我们今天依赖的许多车辆。在这个发动机的操作中，一个关键的阶段被称为压缩行程。在这个阶段，活塞在气缸内向上移动，压缩在前一个进气行程中吸入的空气-燃料混合物。这种压缩至关重要，因为它提高了混合物的温度和压力，使其更易于燃烧。如果没有高效的压缩行程，发动机将难以有效点燃燃料，导致性能差和排放增加。要理解压缩行程的重要性，我们首先必须看看支配大多数内燃机的四冲程循环：进气、压缩、动力和排气。这些行程中的每一个都在确保发动机平稳高效运行中发挥着至关重要的作用。进气行程吸入空气-燃料混合物，而压缩行程则为点燃做好准备。随后，动力行程发生，当火花塞点燃被压缩的混合物时，产生的爆炸推动活塞向下并产生转动发动机曲轴所需的动力。压缩行程的效率可以显著影响发动机的整体性能。较高的压缩比通常会导致更大的功率输出和更好的燃油效率。然而，在施加过多的压缩之前，燃料开始提前点燃，这可能导致敲击并损坏发动机，存在一个限制。工程师在设计发动机时必须仔细平衡这些因素，以优化性能，同时保持可靠性。此外，技术的进步导致了可变压缩比发动机的发展。这些创新设计允许发动机在运行过程中动态调整压缩比，根据驾驶条件优化性能。这项技术突显了压缩行程的重要性及其在现代汽车工程中的作用。总之，压缩行程是内燃机操作的基本方面。它在为燃烧准备空气-燃料混合物中发挥着至关重要的作用，最终决定了发动机的性能和效率。理解这一过程对于任何对汽车技术感兴趣的人来说都是必不可少的，因为它揭示了我们日常生活中最广泛使用的机器之一的复杂工作原理。随着我们不断创新和改进发动机技术，压缩行程将继续成为工程师们致力于提升性能同时减少环境影响的关键焦点。