crank angle

简明释义

曲柄转角

英英释义

例句

1.The engine's performance can be optimized by adjusting the crank angle.

通过调整曲轴角度，可以优化发动机的性能。

2.The crank angle sensor helps in determining the engine's position.

曲轴角度传感器有助于确定发动机的位置。

3.Adjusting the crank angle can lead to better fuel efficiency.

调整曲轴角度可以提高燃油效率。

4.A precise measurement of the crank angle is crucial for accurate ignition timing.

对曲轴角度的精确测量对于准确的点火时机至关重要。

5.During the test, we monitored the crank angle to ensure proper synchronization.

在测试过程中，我们监测了曲轴角度以确保正确的同步。

作文

Understanding the concept of crank angle is crucial for anyone interested in the mechanics of engines. The crank angle refers to the angle of the crankshaft in relation to a fixed point, usually the top dead center (TDC) of the piston. This measurement is vital because it helps engineers and technicians determine the position of the piston within the cylinder during the engine's cycle. The crank angle is typically measured in degrees, and it plays a significant role in the timing of fuel injection and ignition in internal combustion engines.In an internal combustion engine, the pistons move up and down in a linear motion, while the crankshaft converts this linear motion into rotational motion. As the crankshaft rotates, the crank angle changes, indicating where the piston is in its stroke. For instance, at 0 degrees, the piston is at TDC, and at 180 degrees, it is at the bottom dead center (BDC). Understanding these positions is essential for optimizing engine performance.The significance of the crank angle extends beyond just the physical movement of the pistons. It also influences the efficiency of the combustion process. By knowing the exact crank angle, engineers can fine-tune the timing of the spark plug firing and the opening of the fuel injectors. This precision is critical for maximizing power output and minimizing emissions. In modern engines, advanced technologies such as variable valve timing (VVT) systems utilize crank angle data to adjust the timing of valve openings and closings, further enhancing engine performance.Moreover, the crank angle is not only important for performance but also for diagnostics. Many engine management systems monitor the crank angle to detect anomalies in engine operation. If the crank angle does not align with expected values, it may indicate issues such as misfires or timing belt problems. Therefore, understanding and monitoring the crank angle is crucial for maintaining engine health and reliability.In summary, the crank angle is a fundamental aspect of engine mechanics that impacts performance, efficiency, and diagnostics. By grasping the importance of this term, individuals can better appreciate the complexities involved in engine design and operation. Whether you are a student of mechanical engineering, a professional technician, or simply an automotive enthusiast, a solid understanding of the crank angle will enhance your knowledge of how engines work and how to optimize their performance. As technology continues to evolve, the relevance of the crank angle in engine development will only grow, making it an essential topic for anyone interested in the future of automotive engineering.

理解曲轴角度这一概念对于任何对发动机机械感兴趣的人来说都是至关重要的。曲轴角度是指曲轴相对于一个固定点（通常是活塞的上止点，TDC）的角度。这一测量是至关重要的，因为它帮助工程师和技术人员确定在发动机循环中活塞在气缸内的位置。曲轴角度通常以度为单位进行测量，并且在燃油喷射和点火定时方面起着重要作用。在内燃机中，活塞在上下线性运动，而曲轴将这种线性运动转化为旋转运动。当曲轴旋转时，曲轴角度会发生变化，指示活塞在其行程中的位置。例如，在0度时，活塞处于上止点，而在180度时，它处于下止点。因此，理解这些位置对于优化发动机性能至关重要。曲轴角度的重要性不仅仅体现在活塞的物理运动上。它还影响燃烧过程的效率。通过了解确切的曲轴角度，工程师可以微调火花塞点火和燃油喷射器开启的时机。这种精确性对于最大化功率输出和最小化排放至关重要。在现代发动机中，先进的技术如可变气门正时（VVT）系统利用曲轴角度数据来调整气门的开启和关闭时机，从而进一步增强发动机性能。此外，曲轴角度不仅对性能重要，也对诊断至关重要。许多发动机管理系统监测曲轴角度以检测发动机操作中的异常。如果曲轴角度与预期值不符，这可能表明存在如失火或时序带问题等故障。因此，理解和监测曲轴角度对于维持发动机健康和可靠性至关重要。总之，曲轴角度是发动机机械的一个基本方面，影响着性能、效率和诊断。通过掌握这个术语的重要性，个人可以更好地欣赏发动机设计和操作中的复杂性。无论你是机械工程的学生、专业技术人员，还是单纯的汽车爱好者，扎实理解曲轴角度将增强你对发动机工作原理及如何优化其性能的认识。随着技术的不断发展，曲轴角度在发动机开发中的相关性只会增加，使其成为任何对汽车工程未来感兴趣的话题。