air fuel ratio

简明释义

空气燃料比

英英释义

例句

1.The engine's performance can be optimized by adjusting the air fuel ratio (空气燃料比) to ensure complete combustion.

通过调整空气燃料比（空气燃料比），可以优化发动机的性能，以确保完全燃烧。

2.A lean air fuel ratio (空气燃料比) can improve fuel efficiency but may lead to overheating.

偏瘦的空气燃料比（空气燃料比）可以提高燃油效率，但可能导致过热。

3.Adjusting the air fuel ratio (空气燃料比) can help reduce engine knocking.

调整空气燃料比（空气燃料比）可以帮助减少发动机敲击声。

4.During the emissions test, the technician noted that the air fuel ratio (空气燃料比) was too rich.

在排放测试中，技术人员注意到空气燃料比（空气燃料比）过于浓郁。

5.Modern vehicles often use sensors to monitor the air fuel ratio (空气燃料比) for optimal performance.

现代车辆通常使用传感器来监测空气燃料比（空气燃料比），以实现最佳性能。

作文

The concept of air fuel ratio is crucial in the field of combustion and engine performance. It refers to the proportion of air to fuel in a combustion mixture, which plays a significant role in determining the efficiency and effectiveness of combustion processes. An optimal air fuel ratio ensures that fuel burns completely, maximizing energy output while minimizing emissions. In internal combustion engines, for instance, the air fuel ratio can significantly affect power output, fuel economy, and the overall environmental impact of the vehicle. When the air fuel ratio is too low, meaning there is not enough air relative to the fuel, the combustion process becomes inefficient. This condition is known as 'rich' combustion. In rich conditions, some of the fuel does not burn completely, leading to increased emissions of unburned hydrocarbons and carbon monoxide, which are harmful pollutants. Additionally, rich combustion can cause engine knocking and damage over time due to the buildup of carbon deposits. Conversely, if the air fuel ratio is too high, or 'lean', there is excess air in the mixture. While lean combustion can improve fuel efficiency and reduce certain emissions, it can also lead to higher nitrogen oxide (NOx) emissions, which are detrimental to air quality. Furthermore, running an engine too lean can cause overheating and potential engine damage due to the increased combustion temperatures. To achieve the ideal air fuel ratio, engineers often use various technologies such as fuel injection systems, oxygen sensors, and electronic control units. These systems monitor and adjust the air fuel ratio in real-time to ensure optimal performance under varying operating conditions. For example, modern vehicles equipped with fuel injection technology can adapt the air fuel ratio based on factors such as engine temperature, load, and throttle position. This adaptability is essential for meeting stringent emissions regulations and improving overall vehicle performance. In addition to automotive applications, the air fuel ratio is also vital in industrial processes such as power generation and manufacturing. In these contexts, maintaining the correct air fuel ratio is essential for achieving maximum efficiency and minimizing waste. For instance, in a gas turbine power plant, the air fuel ratio must be carefully controlled to optimize the combustion process, ensuring that the plant operates at peak efficiency while adhering to environmental standards. Understanding the air fuel ratio is not only important for engineers and technicians but also for consumers who are increasingly concerned about fuel efficiency and environmental impact. By being aware of how the air fuel ratio affects vehicle performance, drivers can make informed choices about their driving habits and maintenance practices, contributing to a more sustainable future. In conclusion, the air fuel ratio is a fundamental concept in combustion science that directly influences the performance and environmental impact of engines and industrial processes. By optimizing this ratio, we can improve fuel efficiency, reduce harmful emissions, and enhance overall engine performance. As technology continues to advance, our understanding and management of the air fuel ratio will play a pivotal role in shaping the future of transportation and energy production.

“空气燃料比”是燃烧和发动机性能领域中的一个重要概念。它指的是燃烧混合物中空气与燃料的比例，这在决定燃烧过程的效率和有效性方面起着重要作用。一个最佳的“空气燃料比”可以确保燃料完全燃烧，最大化能量输出，同时最小化排放。在内燃机中，例如，“空气燃料比”可以显著影响功率输出、燃油经济性以及车辆的整体环境影响。当“空气燃料比”过低时，即相对于燃料而言空气不足，燃烧过程会变得低效。这种情况被称为“富燃烧”。在富燃烧条件下，一些燃料无法完全燃烧，导致未燃烧的碳氢化合物和一氧化碳的排放增加，这些都是有害的污染物。此外，富燃烧可能会导致发动机敲击并由于碳沉积的积累而造成长期损坏。相反，如果“空气燃料比”过高，或者说“稀”，则混合物中有过多的空气。虽然稀燃烧可以提高燃油效率并减少某些排放，但它也可能导致氮氧化物（NOx）排放增加，这对空气质量有害。此外，过于稀的运行可能会导致过热和潜在的发动机损坏，因为燃烧温度升高。为了达到理想的“空气燃料比”，工程师通常使用各种技术，例如燃油喷射系统、氧传感器和电子控制单元。这些系统实时监测和调整“空气燃料比”，以确保在不同的操作条件下实现最佳性能。例如，现代配备燃油喷射技术的车辆可以根据发动机温度、负载和油门位置等因素调整“空气燃料比”。这种适应性对于满足严格的排放法规和提高整体车辆性能至关重要。除了汽车应用之外，“空气燃料比”在发电和制造等工业过程中也至关重要。在这些背景下，保持正确的“空气燃料比”对于实现最大效率和最小浪费至关重要。例如，在燃气轮机发电厂中，“空气燃料比”必须得到精确控制，以优化燃烧过程，确保发电厂在遵守环境标准的同时以最佳效率运行。理解“空气燃料比”不仅对工程师和技术人员重要，对日益关注燃油效率和环境影响的消费者也同样重要。通过了解“空气燃料比”如何影响车辆性能，驾驶者可以对他们的驾驶习惯和维护实践做出明智的选择，从而为可持续的未来作出贡献。总之，“空气燃料比”是燃烧科学中的一个基本概念，直接影响发动机和工业过程的性能和环境影响。通过优化这一比例，我们可以提高燃油效率，减少有害排放，并增强整体发动机性能。随着技术的不断进步，我们对“空气燃料比”的理解和管理将在塑造交通运输和能源生产的未来中发挥关键作用。