compression ignition engine

简明释义

压燃式发动机

英英释义

例句

1.Many heavy-duty trucks rely on a compression ignition engine 压缩点火发动机 to handle large loads.

许多重型卡车依赖于压缩点火发动机 compression ignition engine来处理重载。

2.The compression ignition engine 压缩点火发动机 is commonly used in diesel vehicles for its fuel efficiency.

柴油车通常使用压缩点火发动机 compression ignition engine，因为它的燃油效率高。

3.In agricultural machinery, a compression ignition engine 压缩点火发动机 is preferred for its durability and power.

在农业机械中，压缩点火发动机 compression ignition engine因其耐用性和动力而受到青睐。

4.The emissions from a compression ignition engine 压缩点火发动机 can be reduced with modern after-treatment systems.

现代后处理系统可以减少压缩点火发动机 compression ignition engine的排放。

5.The design of a compression ignition engine 压缩点火发动机 allows for higher thermal efficiency compared to gasoline engines.

与汽油发动机相比，压缩点火发动机 compression ignition engine的设计允许更高的热效率。

作文

The world of automotive engineering has seen significant advancements over the years, particularly in the development of various types of engines. One such type is the compression ignition engine, which plays a crucial role in the transportation industry. Understanding how this engine operates and its benefits can provide insights into why it remains a popular choice for many vehicles, especially heavy-duty ones.A compression ignition engine is an internal combustion engine that ignites fuel through the heat generated by compressing air within the cylinder. This process is different from spark ignition engines, where a spark plug ignites the fuel-air mixture. In a compression ignition engine, the high pressure created during the compression stroke raises the temperature of the air to a point where the fuel injected into the cylinder ignites spontaneously. This leads to a more efficient combustion process, resulting in better fuel economy and lower emissions compared to traditional gasoline engines.One of the primary advantages of a compression ignition engine is its fuel efficiency. Diesel fuel, commonly used in these engines, contains more energy per liter than gasoline, allowing vehicles powered by compression ignition engines to travel longer distances on less fuel. This makes them particularly appealing for long-haul trucking and commercial transportation, where fuel costs can significantly impact overall expenses.Moreover, compression ignition engines tend to produce more torque at lower RPMs, making them ideal for applications that require heavy lifting or towing. This characteristic is why many trucks and heavy machinery use compression ignition engines. The ability to generate substantial power without needing to rev the engine to high speeds enhances both performance and durability.Environmental considerations have also led to advancements in compression ignition engine technology. Modern diesel engines are equipped with advanced emission control systems, such as selective catalytic reduction (SCR) and diesel particulate filters (DPF), which help reduce harmful emissions. These technologies enable compression ignition engines to meet stringent environmental regulations while maintaining their efficiency.However, the compression ignition engine is not without its challenges. One major concern is the perception of diesel engines as being more polluting than their gasoline counterparts. Although modern compression ignition engines are cleaner than older models, they still emit nitrogen oxides (NOx) and particulates, which can contribute to air quality issues. Public awareness and regulatory pressures have prompted manufacturers to invest in cleaner technologies, ensuring that the future of compression ignition engines aligns with global sustainability goals.In conclusion, the compression ignition engine represents a vital component of modern transportation technology. Its efficiency, power delivery, and adaptability make it an attractive option for various applications, particularly in commercial settings. As technology continues to evolve, the compression ignition engine will likely undergo further enhancements to address environmental concerns while maintaining its core advantages. Understanding the mechanics and benefits of these engines provides valuable knowledge for anyone interested in the future of automotive engineering and sustainable transportation solutions.

汽车工程的世界多年来经历了显著的进步，特别是在各种类型发动机的发展方面。其中一种类型是压缩点火发动机，它在运输行业中发挥着至关重要的作用。了解这种发动机的工作原理及其优点，可以深入了解为什么它仍然是许多车辆（尤其是重型车辆）的热门选择。压缩点火发动机是一种内燃机，通过压缩气缸内的空气产生的热量来点燃燃料。这个过程与火花点火发动机不同，后者是通过火花塞点燃燃料-空气混合物。在压缩点火发动机中，在压缩行程中产生的高压力将空气的温度升高到足以使注入气缸中的燃料自发点燃的程度。这导致了更高效的燃烧过程，从而使燃油经济性更好，排放量比传统汽油发动机低。压缩点火发动机的主要优点之一是其燃油效率。柴油燃料通常用于这些发动机，每升的能量含量比汽油高，使得由压缩点火发动机驱动的车辆能够在更少的燃料上行驶更长的距离。这使得它们在长途运输和商业运输中尤其具有吸引力，因为燃料成本会显著影响整体开支。此外，压缩点火发动机在较低转速下通常产生更多扭矩，这使得它们非常适合需要重型提升或拖曳的应用。这就是为什么许多卡车和重型机械使用压缩点火发动机的原因。在不需要将发动机转速提高到高速度的情况下产生大量动力，提高了性能和耐用性。环境因素也促使压缩点火发动机技术的进步。现代柴油发动机配备了先进的排放控制系统，如选择性催化还原（SCR）和柴油颗粒过滤器（DPF），有助于减少有害排放。这些技术使压缩点火发动机能够满足严格的环境法规，同时保持其效率。然而，压缩点火发动机并非没有挑战。一个主要问题是公众对柴油发动机的看法，认为它们比汽油发动机更污染。尽管现代压缩点火发动机比旧型号更清洁，但它们仍然会排放氮氧化物（NOx）和颗粒物，这可能会导致空气质量问题。公众意识和监管压力促使制造商投资于更清洁的技术，确保压缩点火发动机的未来与全球可持续发展目标相一致。总之，压缩点火发动机代表了现代运输技术的重要组成部分。其效率、动力传递和适应性使其成为各种应用（特别是在商业环境中）的有吸引力的选择。随着技术的不断发展，压缩点火发动机可能会进一步增强，以解决环境问题，同时保持其核心优势。了解这些发动机的机械原理和优点，为任何对汽车工程和可持续交通解决方案的未来感兴趣的人提供了宝贵的知识。