spark ignition engine

简明释义

点燃式发动机

英英释义

例句

1.The mechanic explained how a spark ignition engine works to a group of students.

机械师向一群学生解释了火花点火发动机的工作原理。

2.Regular maintenance is crucial for the longevity of your spark ignition engine.

定期维护对延长您的火花点火发动机的使用寿命至关重要。

3.Many sports cars utilize a high-performance spark ignition engine for better acceleration.

许多跑车使用高性能的火花点火发动机以获得更好的加速性能。

4.In colder climates, spark ignition engines may require special fluids to start efficiently.

在寒冷的气候中，火花点火发动机可能需要特殊的液体以高效启动。

5.The new model of the car features a more efficient spark ignition engine.

这款新车型配备了更高效的火花点火发动机。

作文

The development of the automobile has significantly transformed modern society, and at the heart of this transformation lies the technology of the spark ignition engine (火花点火发动机). This type of engine has been a cornerstone for many vehicles, powering everything from compact cars to trucks. Understanding how a spark ignition engine works is essential for anyone interested in automotive technology. A spark ignition engine operates on the principle of igniting a mixture of air and fuel with a spark produced by a spark plug. The process begins when air and fuel are drawn into the combustion chamber during the intake stroke. Once the piston moves up, compressing this mixture, the spark plug generates a spark that ignites the fuel-air mixture, resulting in an explosion that pushes the piston down, creating power. This cycle repeats continuously, allowing the engine to run smoothly. One of the major advantages of a spark ignition engine is its efficiency. Compared to other types of engines, such as compression ignition engines, they tend to be more responsive and provide better throttle control. This responsiveness makes them ideal for light-duty vehicles, where quick acceleration is often necessary. Moreover, advancements in technology have led to the development of fuel injection systems that optimize the air-fuel mixture, further enhancing the performance of spark ignition engines. However, there are challenges associated with spark ignition engines. One significant issue is the production of emissions. While modern engines are equipped with catalytic converters that help reduce harmful pollutants, the combustion process still generates carbon dioxide and other greenhouse gases. As environmental concerns grow, manufacturers are under increasing pressure to develop cleaner alternatives. This has led to innovations such as hybrid engines and electric vehicles, which aim to reduce our dependence on traditional spark ignition engines. In addition to environmental considerations, the efficiency of spark ignition engines can also be affected by factors such as engine design, fuel quality, and maintenance. Regular maintenance, including oil changes and spark plug replacements, can ensure that the engine runs efficiently and lasts longer. Furthermore, using high-quality fuel can improve performance and reduce the likelihood of knocking, a phenomenon that can damage the engine over time. As we look to the future, the role of spark ignition engines in the automotive industry may evolve. With the rise of electric and hybrid vehicles, the demand for traditional gasoline engines might decline. However, it is important to remember that spark ignition engines have played a crucial role in shaping the automotive landscape. They have made personal transportation accessible and affordable for millions of people around the world. In conclusion, the spark ignition engine (火花点火发动机) has been a pivotal technology in the evolution of automobiles. Its efficient operation, combined with the challenges it faces regarding emissions and environmental impact, highlights the need for continuous innovation in the automotive sector. While the future may see a shift towards alternative power sources, the legacy of the spark ignition engine will undoubtedly remain a significant chapter in the history of transportation.

汽车的发展极大地改变了现代社会，而在这一转变的核心技术中，便是火花点火发动机（spark ignition engine）。这种类型的发动机是许多车辆的基石，从小型车到卡车都在使用它。了解火花点火发动机的工作原理对于任何对汽车技术感兴趣的人来说都是至关重要的。火花点火发动机的工作原理是通过火花塞产生的火花点燃空气和燃料的混合物。这个过程开始于在进气冲程期间，将空气和燃料吸入燃烧室。一旦活塞向上移动，压缩这种混合物，火花塞就会产生火花，点燃燃料-空气混合物，导致爆炸，推动活塞向下运动，产生动力。这个循环不断重复，使发动机能够平稳运行。火花点火发动机的一个主要优点是其效率。与其他类型的发动机（如压缩点火发动机）相比，它们通常反应更快，并提供更好的油门控制。这种响应性使它们非常适合轻型车辆，在这些车辆中，快速加速往往是必要的。此外，技术的进步导致了燃油喷射系统的发展，这些系统优化了空气-燃料混合物，进一步增强了火花点火发动机的性能。然而，火花点火发动机也面临着一些挑战。其中一个重大问题是排放的产生。虽然现代发动机配备了催化转换器，有助于减少有害污染物，但燃烧过程仍然会产生二氧化碳和其他温室气体。随着环境问题的日益严重，制造商面临着开发更清洁替代品的压力。这导致了混合动力发动机和电动车辆等创新的出现，旨在减少我们对传统火花点火发动机的依赖。除了环境考虑之外，火花点火发动机的效率还可能受到发动机设计、燃料质量和维护等因素的影响。定期维护，包括更换机油和火花塞，可以确保发动机高效运行并延长使用寿命。此外，使用高质量的燃料可以提高性能，减少敲击的可能性，敲击现象可能会随着时间的推移损坏发动机。展望未来，火花点火发动机在汽车工业中的角色可能会发生变化。随着电动和混合动力汽车的兴起，对传统汽油发动机的需求可能会下降。然而，重要的是要记住，火花点火发动机在塑造汽车行业方面发挥了关键作用。它们使个人交通工具对全球数百万人变得可及和负担得起。总之，火花点火发动机（spark ignition engine）在汽车演变中一直是一个重要的技术。其高效的操作，加上在排放和环境影响方面面临的挑战，突显了汽车行业持续创新的必要性。虽然未来可能会向替代动力源转变，但火花点火发动机的遗产无疑将成为交通史上的一个重要篇章。