anti-knock fuel

简明释义

抗爆燃料

英英释义

例句

1.The introduction of anti-knock fuel 抗爆燃料 has significantly reduced emissions in urban areas.

抗爆燃料 anti-knock fuel的引入显著减少了城市地区的排放。

2.Many modern vehicles are designed to run efficiently on anti-knock fuel 抗爆燃料 to minimize engine knocking.

许多现代车辆被设计为能够高效使用抗爆燃料 anti-knock fuel，以减少发动机敲击声。

3.Using anti-knock fuel 抗爆燃料 can improve the performance of high-compression engines.

使用抗爆燃料 anti-knock fuel可以提高高压缩比发动机的性能。

4.Some racing cars require specialized anti-knock fuel 抗爆燃料 to achieve maximum speed.

一些赛车需要专用的抗爆燃料 anti-knock fuel以达到最高速度。

5.The mechanic recommended switching to anti-knock fuel 抗爆燃料 for better fuel efficiency.

机械师建议更换为抗爆燃料 anti-knock fuel以提高燃油效率。

作文

In the world of automotive engineering, the term anti-knock fuel refers to a type of fuel that is specifically formulated to prevent engine knocking or pinging during combustion. Engine knocking occurs when fuel combusts unevenly in the engine cylinder, which can lead to decreased performance and potential damage over time. Therefore, understanding the significance of anti-knock fuel is crucial for both car manufacturers and consumers alike.The primary component that contributes to the anti-knock properties of fuel is its octane rating. The octane rating measures a fuel's ability to resist knocking; higher octane fuels can withstand greater compression before igniting. For instance, premium gasoline typically has an octane rating of 91 or higher, while regular gasoline usually has an octane rating of around 87. Vehicles designed with high-performance engines often require higher octane fuels to operate optimally, as these engines generate more compression and, consequently, are more susceptible to knocking.One of the most common additives used to enhance the anti-knock properties of fuels is tetraethyl lead, although its use has been largely phased out due to environmental concerns. Today, many fuels incorporate other compounds such as ethanol or various hydrocarbons to achieve similar results without the harmful effects associated with lead. The transition to cleaner fuels has led to innovations in fuel formulations, allowing for both improved engine performance and reduced emissions.The importance of anti-knock fuel extends beyond just performance; it also plays a significant role in fuel efficiency. When an engine experiences knocking, it can cause the engine control unit (ECU) to adjust the air-fuel mixture or ignition timing to mitigate the knocking. These adjustments can lead to less efficient combustion, resulting in increased fuel consumption. By using a fuel with adequate anti-knock properties, drivers can ensure that their engines run smoothly, maximizing fuel efficiency and minimizing costs at the pump.Moreover, the use of anti-knock fuel can contribute to the longevity of an engine. Continuous knocking can lead to serious issues such as damaged pistons, worn bearings, and even catastrophic engine failure. By preventing knocking, the right fuel can help maintain engine integrity and reduce the likelihood of costly repairs.In conclusion, the concept of anti-knock fuel is integral to the functioning of modern internal combustion engines. It not only enhances performance by preventing knocking but also improves fuel efficiency and extends engine life. As automotive technology continues to evolve, the development of advanced fuels that offer superior anti-knock properties will remain a priority for manufacturers and researchers alike. Understanding the role of anti-knock fuel can empower consumers to make informed choices about the fuels they use, ultimately leading to better vehicle performance and reduced environmental impact.

在汽车工程领域，短语抗爆燃料指的是一种特定配方的燃料，旨在防止发动机在燃烧过程中发生敲击或爆震。发动机敲击是指燃料在发动机气缸内不均匀燃烧时发生的现象，这可能导致性能下降并随着时间的推移造成潜在损害。因此，理解抗爆燃料的重要性对汽车制造商和消费者而言都是至关重要的。影响燃料抗爆性能的主要成分是其辛烷值。辛烷值衡量燃料抵抗敲击的能力；辛烷值越高的燃料能承受更大的压缩后才会点燃。例如，优质汽油的辛烷值通常为91或更高，而普通汽油的辛烷值通常约为87。设计有高性能发动机的车辆通常需要使用更高辛烷值的燃料，以便最佳运行，因为这些发动机产生更高的压缩，因此更容易发生敲击。用于增强燃料抗爆性能的最常见添加剂之一是四乙基铅，尽管由于环境问题，其使用已被大幅度淘汰。如今，许多燃料中加入其他化合物，如乙醇或各种烃类，以实现类似效果，而不会带来与铅相关的有害影响。向更清洁燃料的过渡促进了燃料配方的创新，使得既能提高发动机性能又能减少排放。抗爆燃料的重要性不仅体现在性能上；它在燃料效率方面也起着重要作用。当发动机发生敲击时，可能导致发动机控制单元（ECU）调整空气-燃料混合比或点火时机以减轻敲击。这些调整可能导致燃烧效率降低，从而增加燃料消耗。通过使用具有足够抗爆性能的燃料，司机可以确保他们的发动机平稳运行，从而最大限度地提高燃料效率，降低加油成本。此外，使用抗爆燃料还有助于延长发动机的使用寿命。持续的敲击可能导致严重问题，例如活塞损坏、轴承磨损，甚至灾难性的发动机故障。通过防止敲击，合适的燃料可以帮助保持发动机的完整性，减少昂贵维修的可能性。总之，抗爆燃料的概念对现代内燃机的运行至关重要。它不仅通过防止敲击来增强性能，还提高燃料效率并延长发动机寿命。随着汽车技术的不断发展，开发具有卓越抗爆性能的先进燃料将继续成为制造商和研究人员的优先事项。理解抗爆燃料的作用可以使消费者在选择使用的燃料时做出明智的决策，最终实现更好的车辆性能和减少环境影响。