fuel metering

简明释义

燃油调节

英英释义

例句

1.In aviation, precise fuel metering 燃料计量 is critical for flight safety and efficiency.

在航空领域，精确的燃料计量对飞行安全和效率至关重要。

2.Proper fuel metering 燃料计量 is essential for optimizing the performance of any combustion engine.

适当的燃料计量对于优化任何内燃机的性能至关重要。

3.The technician explained how fuel metering 燃料计量 systems work in modern vehicles.

技术员解释了现代车辆中燃料计量系统的工作原理。

4.The fuel metering 燃料计量 unit was malfunctioning, leading to inconsistent engine performance.

该燃料计量单元出现故障，导致发动机性能不稳定。

5.The new engine design incorporates advanced fuel metering 燃料计量 technology for better efficiency.

新发动机设计采用了先进的燃料计量技术，以提高效率。

作文

In modern engineering and automotive design, one of the most critical aspects is the efficient management of fuel. This process is essential for optimizing performance while minimizing emissions. A key component in this management system is fuel metering, which refers to the precise control of the amount of fuel that is delivered to an engine. Understanding how fuel metering works can significantly enhance our appreciation of modern vehicles and their environmental impact.The concept of fuel metering involves various technologies and methodologies that ensure the right quantity of fuel reaches the combustion chamber at the right time. In internal combustion engines, the air-fuel mixture must be carefully controlled to achieve optimal combustion. If too much fuel is supplied, it can lead to inefficient combustion, producing excess emissions and reducing fuel economy. Conversely, too little fuel can cause the engine to run lean, which may result in knocking or even engine damage.Historically, fuel metering was handled by mechanical systems such as carburetors, which mixed air and fuel based on the engine’s needs. However, with advancements in technology, electronic fuel injection (EFI) systems have largely replaced these older systems. EFI utilizes sensors and computer algorithms to dynamically adjust the fuel flow based on various parameters, including engine speed, load, and temperature. This shift from mechanical to electronic fuel metering has dramatically improved engine efficiency and performance.One of the significant advantages of modern fuel metering systems is their ability to adapt to changing conditions. For example, during cold starts, the engine requires a richer fuel mixture to compensate for lower temperatures. The EFI system can detect this need and adjust the fuel delivery accordingly, ensuring smooth operation and reduced emissions.Moreover, fuel metering plays a vital role in achieving regulatory compliance with emissions standards. As governments around the world impose stricter limits on vehicle emissions, manufacturers are increasingly relying on advanced fuel metering technologies to meet these requirements. By optimizing the air-fuel mixture, vehicles can achieve better combustion efficiency, leading to lower carbon dioxide and other harmful emissions.In addition to traditional internal combustion engines, fuel metering is also crucial in alternative fuel systems, such as those using compressed natural gas (CNG) or hydrogen. These systems require specialized metering techniques to ensure that the correct fuel type is delivered in the right quantities, maintaining performance and safety.As we move towards a more sustainable future, the importance of fuel metering cannot be overstated. Innovations in this field are paving the way for cleaner, more efficient engines that not only meet regulatory demands but also provide consumers with better fuel economy and performance. Research continues into new materials and technologies that can enhance fuel metering systems, making them even more precise and reliable.In conclusion, fuel metering is a fundamental aspect of modern engine design and operation. Its evolution from mechanical systems to sophisticated electronic controls has transformed how we manage fuel in vehicles. As we strive for greater efficiency and lower emissions, understanding and improving fuel metering will remain a priority for engineers and manufacturers alike. Ultimately, mastering this technology is essential for shaping the future of transportation and ensuring a cleaner environment for generations to come.

在现代工程和汽车设计中，燃料的有效管理是最关键的方面之一。这个过程对于优化性能和最小化排放至关重要。管理系统中的一个关键组成部分是燃料计量，它指的是精确控制送入发动机的燃料量。理解燃料计量的工作原理可以显著增强我们对现代车辆及其环境影响的认识。燃料计量的概念涉及各种技术和方法，以确保适量的燃料在正确的时间到达燃烧室。在内燃机中，空气与燃料的混合必须被仔细控制，以实现最佳的燃烧。如果供应过多的燃料，会导致燃烧效率低下，产生过量排放并降低燃油经济性。相反，如果燃料过少，会导致发动机运行过于稀薄，这可能导致爆震甚至发动机损坏。历史上，燃料计量是由机械系统如化油器来处理的，它根据发动机的需求混合空气和燃料。然而，随着技术的进步，电子燃油喷射（EFI）系统已经在很大程度上取代了这些旧系统。EFI利用传感器和计算机算法，根据各种参数（包括发动机转速、负载和温度）动态调整燃料流量。这种从机械到电子燃料计量的转变显著提高了发动机的效率和性能。现代燃料计量系统的一个重要优势是它们能够适应变化的条件。例如，在冷启动期间，发动机需要更丰富的燃料混合物以补偿较低的温度。EFI系统可以检测到这种需求，并相应地调整燃料供应，确保平稳运行并减少排放。此外，燃料计量在实现符合排放标准的法规方面也发挥着至关重要的作用。随着世界各国政府对车辆排放施加越来越严格的限制，制造商越来越依赖先进的燃料计量技术来满足这些要求。通过优化空气-燃料混合，车辆可以实现更好的燃烧效率，从而降低二氧化碳和其他有害排放。除了传统的内燃机外，燃料计量在使用压缩天然气（CNG）或氢气等替代燃料系统中也至关重要。这些系统需要专门的计量技术，以确保以正确的数量输送正确的燃料类型，保持性能和安全。随着我们朝着更可持续的未来迈进，燃料计量的重要性不容小觑。该领域的创新正在为更清洁、更高效的发动机铺平道路，这些发动机不仅能满足监管要求，还能为消费者提供更好的燃油经济性和性能。研究仍在继续，开发新的材料和技术，以增强燃料计量系统，使其更加精确和可靠。总之，燃料计量是现代发动机设计和操作的基本方面。从机械系统到复杂的电子控制的发展改变了我们管理车辆燃料的方式。随着我们努力追求更高的效率和更低的排放，理解和改善燃料计量将始终是工程师和制造商的优先事项。最终，掌握这一技术对于塑造交通运输的未来和确保为后代创造一个更清洁的环境至关重要。