intake stroke

简明释义

进气冲程

英英释义

例句

1.Mechanical issues can prevent the intake stroke from functioning properly.

机械问题可能会导致进气行程无法正常运作。

2.A longer intake stroke can increase the amount of air-fuel mixture entering the cylinder.

更长的进气行程可以增加进入气缸的空气-燃料混合物的量。

3.During the engine's intake stroke, air and fuel are drawn into the cylinder.

在发动机的进气行程中，空气和燃料被吸入气缸。

4.The efficiency of an engine can be affected by the timing of the intake stroke.

发动机的效率可能受到进气行程时机的影响。

5.In a four-stroke engine, the intake stroke is the first step in the cycle.

在四冲程发动机中，进气行程是循环的第一步。

作文

The internal combustion engine is a marvel of engineering, and one of its most critical phases is the intake stroke. During this phase, the engine draws in air and fuel, preparing for the combustion process that will ultimately power the vehicle. Understanding the mechanics behind the intake stroke is essential for anyone interested in automotive engineering or simply wanting to understand how their car works. The intake stroke occurs during the first part of the four-stroke cycle, which includes the intake, compression, power, and exhaust strokes. In the intake stroke, the piston moves down the cylinder, creating a vacuum that allows air and fuel to enter the combustion chamber. This process is facilitated by the opening of the intake valves, which are controlled by the camshaft. As the piston descends, it pulls a mixture of air and fuel into the cylinder, which is crucial for the engine's performance. The efficiency of the intake stroke can significantly affect the overall power output and fuel efficiency of the engine.Moreover, the design of the intake system plays a vital role in optimizing the intake stroke. Engineers often experiment with different shapes and sizes of intake manifolds to maximize airflow and improve engine response. A well-designed intake system can enhance the amount of air-fuel mixture entering the cylinder, leading to more powerful combustion and better performance.Another factor influencing the intake stroke is the timing of the valve openings. If the intake valves open too late or close too early, it can result in a less efficient intake process, ultimately affecting the engine's performance. This is why modern engines employ advanced technologies like variable valve timing to optimize the timing of the intake stroke under various operating conditions.In summary, the intake stroke is a fundamental aspect of the internal combustion engine's operation. It is the phase where the engine breathes in the necessary air and fuel mixture, setting the stage for the subsequent compression and power strokes. A thorough understanding of the intake stroke allows engineers to innovate and improve engine designs, leading to more efficient and powerful vehicles. Whether you are a car enthusiast or a professional engineer, grasping the significance of the intake stroke is crucial for appreciating the complexities of automotive technology.

内燃机是一项工程奇迹，其最关键的阶段之一是进气冲程。在这个阶段，发动机吸入空气和燃料，为最终将驱动车辆的燃烧过程做好准备。理解进气冲程背后的机制对于任何对汽车工程感兴趣的人或仅仅想了解汽车工作原理的人来说都是至关重要的。进气冲程发生在四冲程循环的第一部分，其中包括进气、压缩、功率和排气冲程。在进气冲程中，活塞向下移动气缸，产生真空，使空气和燃料进入燃烧室。这个过程是通过进气阀的开启来促进的，进气阀由凸轮轴控制。当活塞下降时，它将空气和燃料的混合物拉入气缸，这对发动机的性能至关重要。进气冲程的效率可以显著影响发动机的整体功率输出和燃油效率。此外，进气系统的设计在优化进气冲程中发挥着重要作用。工程师们常常尝试不同形状和尺寸的进气歧管，以最大化气流并改善发动机反应。一个设计良好的进气系统可以增强进入气缸的空气-燃料混合物的量，从而导致更强的燃烧和更好的性能。影响进气冲程的另一个因素是阀门开启的时机。如果进气阀开启得太晚或关闭得太早，可能会导致进气过程效率降低，最终影响发动机的性能。这就是现代发动机采用先进技术如可变气门正时以优化不同工作条件下的进气冲程时机的原因。总之，进气冲程是内燃机运作的基本方面。它是发动机吸入所需空气和燃料混合物的阶段，为随后的压缩和功率冲程奠定基础。深入理解进气冲程使工程师能够创新和改进发动机设计，导致更高效和更强大的车辆。无论你是汽车爱好者还是专业工程师，掌握进气冲程的重要性对于欣赏汽车技术的复杂性至关重要。