induction stroke

简明释义

进气冲程

英英释义

例句

1.The timing of the induction stroke affects the overall power output of the engine.

进气行程的时机影响发动机的整体功率输出。

2.During the induction stroke, the engine draws in air and fuel for combustion.

在进气行程中，发动机吸入空气和燃料以进行燃烧。

3.The efficiency of an engine can be improved by optimizing the induction stroke process.

通过优化进气行程过程，可以提高发动机的效率。

4.Understanding the induction stroke is crucial for diagnosing engine performance issues.

理解进气行程对于诊断发动机性能问题至关重要。

5.In a two-stroke engine, the induction stroke occurs simultaneously with the compression stroke.

在二冲程发动机中，进气行程与压缩行程同时发生。

作文

The operation of an internal combustion engine is a complex process that involves several distinct strokes, each playing a crucial role in the engine's efficiency and performance. One of these essential strokes is the induction stroke, which is often underestimated in its importance. During the induction stroke (进气行程), the engine draws in air or a mixture of air and fuel into the combustion chamber, preparing for the subsequent compression and power strokes.Understanding the induction stroke is vital for anyone interested in automotive engineering or mechanics. This stroke begins when the piston moves down the cylinder, creating a vacuum that allows air to flow into the combustion chamber. The timing and quantity of air intake during the induction stroke can significantly affect engine performance, fuel efficiency, and emissions.In modern engines, the induction stroke is often enhanced by various technologies such as turbocharging and variable valve timing. Turbochargers compress the incoming air, allowing more air to enter the combustion chamber than would occur naturally. This increase in air leads to a more powerful explosion during the combustion phase, resulting in higher power output. Variable valve timing systems adjust the timing of the intake valves to optimize the amount of air entering the engine at different RPMs, further improving performance during the induction stroke.Furthermore, the design of the intake manifold plays a significant role in the effectiveness of the induction stroke. A well-designed manifold can help ensure that air flows smoothly into the combustion chamber, minimizing turbulence and maximizing the amount of air that enters. This is crucial because any hindrance during the induction stroke can lead to incomplete combustion, reducing power and increasing emissions.In addition to mechanical factors, the environmental conditions also influence the induction stroke. For example, at higher altitudes, the air is less dense, which can reduce the amount of oxygen available for combustion. This means that engines may produce less power in such conditions unless they are equipped with systems designed to compensate for the thinner air.The induction stroke is not just a mechanical process; it also has implications for the overall design and operation of an engine. Engineers must consider how changes in the induction stroke will affect the entire cycle of the engine, including the compression, power, and exhaust strokes. Each component is interconnected, and optimizing one aspect often requires adjustments in others.In conclusion, the induction stroke (进气行程) is a fundamental part of the internal combustion engine cycle that should not be overlooked. Its impact on engine performance, efficiency, and emissions makes it a critical area of study for engineers and mechanics alike. As technology continues to advance, understanding the intricacies of the induction stroke will be essential for developing more efficient and powerful engines in the future.