compression ignition

简明释义

压缩打火

英英释义

例句

1.The engine operates on the principle of compression ignition, which is more efficient than traditional spark ignition engines.

该发动机基于压缩点火的原理，比传统的火花点火发动机更高效。

2.Many diesel engines use compression ignition to ignite fuel, resulting in better fuel economy.

许多柴油发动机使用压缩点火来点燃燃料，从而实现更好的燃油经济性。

3.The process of compression ignition occurs when air is compressed to a high temperature before fuel is injected.

在注入燃料之前，压缩点火过程发生在空气被压缩到高温时。

4.In compression ignition engines, the fuel burns spontaneously due to the high pressure and temperature.

在压缩点火发动机中，由于高压和高温，燃料自发燃烧。

5.Vehicles that run on compression ignition engines typically produce more torque at lower RPMs.

运行在压缩点火发动机上的车辆通常在较低转速下产生更多扭矩。

作文

The concept of compression ignition is crucial in understanding how certain types of engines operate, particularly diesel engines. Unlike gasoline engines that rely on spark plugs to ignite the fuel-air mixture, compression ignition engines utilize the heat generated from compressing air within the cylinder to ignite the fuel. This fundamental difference in operation leads to various advantages and disadvantages for each engine type.In a compression ignition engine, air is compressed to a high pressure, which significantly raises its temperature. Once the air reaches a sufficiently high temperature, fuel is injected into the cylinder. The heat from the compressed air ignites the fuel spontaneously, hence the term "compression ignition." This process allows diesel engines to achieve higher thermal efficiency compared to their gasoline counterparts. As a result, diesel engines typically provide more torque and better fuel economy, making them ideal for heavy-duty applications such as trucks and buses.However, the compression ignition process also has its downsides. Diesel engines tend to produce higher levels of nitrogen oxides (NOx) and particulate matter, which are harmful pollutants. This has led to increased scrutiny and regulation of diesel emissions in many countries. Manufacturers have responded by developing advanced emission control technologies, such as selective catalytic reduction (SCR) and diesel particulate filters (DPF), to mitigate these environmental concerns.Moreover, the sound and vibration produced by compression ignition engines can be more pronounced than that of gasoline engines. This characteristic noise is due to the rapid combustion of fuel and the inherent design of the engine. While some drivers appreciate the robust sound of a diesel engine, others may find it less appealing, which has influenced consumer preferences in the automotive market.In recent years, the rise of electric vehicles (EVs) has added another layer of complexity to the discussion surrounding compression ignition engines. As the world moves towards more sustainable transportation solutions, traditional diesel engines face challenges in maintaining their market share. However, it is worth noting that compression ignition technology is evolving, with innovations such as biodiesel and synthetic fuels being explored as cleaner alternatives to conventional diesel fuel.In conclusion, understanding compression ignition is essential for anyone interested in automotive technology and engineering. While compression ignition engines offer significant benefits in terms of efficiency and performance, they also pose environmental challenges that must be addressed. As the industry continues to innovate, the future of compression ignition technology will likely involve finding a balance between performance, emissions, and sustainability. Whether through advanced emission controls or alternative fuels, the journey of compression ignition technology is far from over, and it remains a pivotal aspect of the automotive landscape.

“压缩点火”这一概念对于理解某些类型发动机的工作原理至关重要，特别是柴油发动机。与依赖火花塞点燃燃料-空气混合物的汽油发动机不同，“压缩点火”发动机利用在气缸内压缩空气所产生的热量来点燃燃料。这种操作上的根本差异导致了每种发动机类型的各种优缺点。在“压缩点火”发动机中，空气被压缩到高压力，这显著提高了其温度。一旦空气达到足够高的温度，燃料就会被喷入气缸。来自压缩空气的热量自发点燃燃料，因此得名“压缩点火”。这一过程使柴油发动机相比于汽油发动机能够实现更高的热效率。因此，柴油发动机通常提供更大的扭矩和更好的燃油经济性，使其成为卡车和公共汽车等重型应用的理想选择。然而，“压缩点火”过程也有其缺点。柴油发动机往往产生较高水平的氮氧化物（NOx）和颗粒物，这些都是有害污染物。这导致许多国家对柴油排放进行了更加严格的审查和监管。制造商已通过开发先进的排放控制技术，如选择性催化还原（SCR）和柴油颗粒过滤器（DPF），来应对这些环境问题。此外，“压缩点火”发动机产生的声音和振动可能比汽油发动机更为明显。这种特征噪音是由于燃料的快速燃烧以及发动机的固有设计造成的。虽然一些驾驶者欣赏柴油发动机的强劲声音，但其他人可能觉得这不那么吸引人，这影响了消费者在汽车市场的偏好。近年来，电动车（EV）的兴起为围绕“压缩点火”发动机的讨论增加了另一层复杂性。随着世界向更可持续的交通解决方案迈进，传统柴油发动机面临着保持市场份额的挑战。然而，值得注意的是，“压缩点火”技术正在发展，生物柴油和合成燃料等创新被探索作为常规柴油燃料的更清洁替代品。总之，理解“压缩点火”对于任何对汽车技术和工程感兴趣的人来说都是至关重要的。虽然“压缩点火”发动机在效率和性能方面提供了显著的好处，但它们也带来了必须解决的环境挑战。随着行业的不断创新，“压缩点火”技术的未来可能会涉及在性能、排放和可持续性之间找到平衡。无论是通过先进的排放控制还是替代燃料，“压缩点火”技术的旅程还远未结束，它仍然是汽车领域的关键方面。