What is the concept of ignition advance angle?

[DelKiara]

Ignition advance angle refers to the crankshaft angle at which the engine ignites before the piston reaches the top dead center of compression. Here is its introduction: 1. Function: There is a time process for the mixture to ignite, burn, and finish burning. The role of the optimal ignition advance angle is to ensure that the maximum gas expansion phase occurs during the piston's downward power stroke under various operating conditions. This results in the highest efficiency, minimal vibration, and the lowest temperature rise. 2. Influencing factors: The most significant factor affecting the ignition advance is the engine speed. As the speed increases, the time to rotate through the same angle becomes shorter, requiring a larger advance angle to achieve the corresponding advance time.