fuel metering

简明释义

燃油计量

英英释义

例句

1.In diesel engines, fuel metering plays a critical role in controlling emissions.

在柴油发动机中，燃料计量在控制排放方面发挥着关键作用。

2.Regular maintenance of the fuel metering system is essential for optimal engine efficiency.

定期维护燃料计量系统对最佳发动机效率至关重要。

3.A malfunction in the fuel metering unit can lead to engine performance issues.

在燃料计量单元中的故障可能会导致发动机性能问题。

4.The aircraft's fuel metering system ensures that the right amount of fuel is delivered to the engines during flight.

飞机的燃料计量系统确保在飞行过程中向引擎提供正确的燃料量。

5.The technician calibrated the fuel metering device to improve accuracy.

技术员校准了燃料计量设备以提高准确性。

作文

In modern engineering and automotive design, the concept of fuel metering plays a crucial role in ensuring optimal performance and efficiency. Fuel metering refers to the precise measurement and control of fuel flow into an engine or combustion system. This process is vital because the correct amount of fuel must be delivered to achieve the ideal air-fuel ratio, which directly affects engine power, emissions, and overall functionality.To understand the significance of fuel metering, we must first consider how engines operate. Internal combustion engines require a specific mixture of air and fuel to ignite and produce power. If too much fuel is introduced, the engine may run rich, leading to increased emissions and reduced efficiency. Conversely, if there is too little fuel, the engine may run lean, causing potential damage due to overheating or knocking. Therefore, effective fuel metering is essential for maintaining the balance that allows engines to perform optimally.There are various methods of fuel metering used in different types of engines. For instance, carburetors were once the standard method for fuel metering in older vehicles. They rely on the principle of vacuum to draw fuel into the air stream, mixing it before it enters the combustion chamber. However, with advancements in technology, electronic fuel injection (EFI) has become the preferred method in modern vehicles. EFI systems utilize sensors and computer controls to precisely measure and adjust the amount of fuel injected into the engine based on real-time operating conditions.The benefits of accurate fuel metering extend beyond just performance. By ensuring that the right amount of fuel is used, manufacturers can also reduce harmful emissions, contributing to a cleaner environment. In today's world, where environmental concerns are paramount, the ability to control fuel metering effectively can lead to significant reductions in pollutants, aligning with global efforts to combat climate change.Moreover, fuel metering technology continues to evolve. Innovations such as direct fuel injection and variable valve timing have emerged, enhancing the precision of fuel metering even further. These technologies allow for better atomization of fuel, improving combustion efficiency and power output while minimizing waste.In conclusion, fuel metering is a fundamental aspect of engine design and operation that impacts performance, efficiency, and environmental sustainability. As technology progresses, the methods and systems used for fuel metering will continue to advance, paving the way for more efficient and environmentally friendly vehicles. Understanding the importance of fuel metering not only helps engineers and designers create better engines but also informs consumers about the significance of choosing vehicles that utilize advanced fuel metering systems for improved performance and reduced environmental impact.

在现代工程和汽车设计中，燃料计量的概念在确保最佳性能和效率方面发挥着至关重要的作用。燃料计量是指精确测量和控制燃料流入发动机或燃烧系统的过程。这个过程至关重要，因为必须提供正确的燃料量，以实现理想的空气-燃料比，这直接影响发动机的功率、排放和整体功能。要理解燃料计量的重要性，我们必须首先考虑发动机如何运作。内燃机需要特定的空气和燃料混合物来点燃并产生动力。如果引入的燃料过多，发动机可能会运行过浓，导致排放增加和效率降低。相反，如果燃料过少，发动机可能会运行过稀，因过热或爆震而造成潜在损害。因此，有效的燃料计量对于维持发动机的最佳性能至关重要。在不同类型的发动机中，有各种方法用于燃料计量。例如，化油器曾经是旧车型中燃料计量的标准方法。它们依靠真空原理将燃料吸入气流，在进入燃烧室之前进行混合。然而，随着技术的进步，电子燃油喷射（EFI）已成为现代车辆的首选方法。EFI系统利用传感器和计算机控制，根据实时工作条件精确测量和调整注入发动机的燃料量。准确的燃料计量的好处不仅仅体现在性能上。通过确保使用正确的燃料量，制造商还可以减少有害排放，为清洁环境做出贡献。在当今环境问题至关重要的世界中，有效控制燃料计量的能力可以显著减少污染物，与全球应对气候变化的努力相一致。此外，燃料计量技术仍在不断发展。诸如直接燃油喷射和可变气门正时等创新已经出现，进一步增强了燃料计量的精确度。这些技术允许更好的燃料雾化，提高燃烧效率和功率输出，同时最小化浪费。总之，燃料计量是发动机设计和操作的基本方面，影响性能、效率和环境可持续性。随着技术的进步，用于燃料计量的方法和系统将继续发展，为更高效和环保的车辆铺平道路。了解燃料计量的重要性不仅帮助工程师和设计师创造更好的发动机，还使消费者了解到选择利用先进燃料计量系统的车辆以提高性能和减少环境影响的重要性。