injection timing

简明释义

喷油定时

英英释义

例句

1.If the injection timing is off, it can lead to engine knocking.

如果喷油时机不正确，可能会导致发动机敲击声。

2.The performance of the engine largely depends on the injection timing.

发动机的性能在很大程度上取决于喷油时机。

3.The mechanic suggested checking the injection timing during the service.

机械师建议在维修时检查一下喷油时机。

4.Adjusting the injection timing can improve fuel efficiency.

调整喷油时机可以提高燃油效率。

5.A precise injection timing is crucial for optimal combustion.

精确的喷油时机对于最佳燃烧至关重要。

作文

The concept of injection timing is crucial in the field of automotive engineering, particularly when discussing internal combustion engines. It refers to the precise moment when fuel is injected into the combustion chamber. The correct injection timing can significantly affect engine performance, fuel efficiency, and emissions. In modern vehicles, the injection timing is often controlled by sophisticated electronic control units (ECUs) that analyze various parameters such as engine speed, load, and temperature. This allows for optimal fuel delivery, ensuring that the engine runs smoothly and efficiently.Understanding injection timing requires knowledge of how an engine operates. During the intake stroke, the engine draws in air, and during the compression stroke, this air is compressed. The injection timing determines when the fuel is introduced into the cylinder, which can be before, during, or after the compression stroke. If the fuel is injected too early, it may not fully vaporize, leading to poor combustion. Conversely, if it is injected too late, it can result in incomplete combustion and increased emissions.One of the main challenges in optimizing injection timing is balancing power output with fuel efficiency. For instance, a more advanced injection timing strategy might allow for higher power output at the cost of increased fuel consumption. Engineers must carefully consider these trade-offs when designing engine management systems. Additionally, different driving conditions, such as acceleration or cruising, may require adjustments to the injection timing to maintain optimal performance.Moreover, advancements in technology have led to the development of variable injection timing systems. These systems can adjust the timing dynamically based on real-time data, providing improved performance across a range of conditions. This adaptability is especially important in today's world, where environmental regulations are becoming stricter, and consumers demand better fuel economy.In summary, injection timing plays a vital role in the operation of internal combustion engines. It affects not only the performance and efficiency of the vehicle but also its environmental impact. As technology continues to evolve, understanding and optimizing injection timing will remain a key focus for engineers and manufacturers alike. By mastering this concept, we can contribute to the development of cleaner, more efficient vehicles that meet the demands of modern society.

在汽车工程领域，喷油时机的概念至关重要，特别是在讨论内燃机时。它指的是燃料注入燃烧室的精确时刻。正确的喷油时机可以显著影响发动机性能、燃油效率和排放。在现代车辆中，喷油时机通常由复杂的电子控制单元（ECU）控制，这些单元会分析各种参数，如发动机转速、负载和温度。这使得最佳燃料供给成为可能，确保发动机平稳高效地运行。理解喷油时机需要对发动机的工作原理有一定了解。在进气行程中，发动机吸入空气，而在压缩行程中，这些空气被压缩。喷油时机决定了燃料何时被引入气缸，这可以是在压缩行程之前、期间或之后。如果燃料注入得太早，可能无法完全气化，从而导致燃烧不良。相反，如果注入得太晚，则可能导致燃烧不完全和排放增加。优化喷油时机的主要挑战之一是平衡功率输出与燃油效率。例如，更先进的喷油时机策略可能允许在增加燃油消耗的情况下获得更高的功率输出。工程师在设计发动机管理系统时必须仔细考虑这些权衡。此外，不同的驾驶条件，例如加速或巡航，可能需要调整喷油时机以保持最佳性能。此外，技术的进步导致可变喷油时机系统的发展。这些系统可以根据实时数据动态调整时机，在各种条件下提供改善的性能。在当今这个环境法规日益严格、消费者要求更好燃油经济性的世界里，这种适应能力尤其重要。总之，喷油时机在内燃机的运行中扮演着至关重要的角色。它不仅影响车辆的性能和效率，还影响其环境影响。随着技术的不断发展，理解和优化喷油时机将始终是工程师和制造商关注的重点。通过掌握这一概念，我们可以为开发更清洁、更高效的满足现代社会需求的车辆做出贡献。