What is the ignition advance angle range?
1 Answers
The normal range for the ignition advance angle is between 6 and 12 degrees. Below is relevant information about the ignition system: 1. Function: In a gasoline engine, as compression nears top dead center, the combustible mixture is ignited by the spark plug, leading to combustion that performs external work. Therefore, spark plugs are installed in the combustion chambers of gasoline engines. The purpose of the ignition system is to generate a sufficiently energetic spark between the electrodes of the spark plug in accordance with the working sequence of the cylinders. 2. Requirements: The voltage required to create a spark by breaking down the spark plug electrodes is called the breakdown voltage. The secondary voltage produced by the ignition system must exceed the breakdown voltage for the spark plug to fire. The magnitude of the breakdown voltage is influenced by many factors, including: (1) Spark plug electrode gap and shape: The larger the gap between the spark plug electrodes, the higher the breakdown voltage; electrodes with sharp edges require a lower breakdown voltage. (2) Pressure and temperature of the gas mixture in the cylinder: The higher the pressure and the lower the temperature of the gas mixture, the higher the breakdown voltage. (3) Temperature of the electrodes: The higher the temperature of the spark plug electrodes, the lower the gas density around the electrodes, resulting in a lower breakdown voltage.
