Patent ID: 11923663
Assignee: WEICHAI TORCH TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A spark plug heat rating measurement method based on spark discharge current active heating, wherein: during a spark discharge process, a spark discharge current is precisely adjusted to control temperature of a spark plasma channel for heating up a high-voltage central electrode of the spark plug, and temperature changes of the high-voltage central electrode and a surrounding ceramic insulator of the spark plug are measured to evaluate a heat rating of the spark plug;
wherein: the temperature changes of high-voltage central electrodes and surrounding ceramic insulators of different spark plugs with different heat ratings are measured by placing the spark plugs in a temperature detection module which includes the temperature measurement module; with a same amount of spark gap energy supplied to the spark plugs, the temperature changes of the ceramic insulators are measured to evaluate the heat ratings of the spark plugs and heat dissipation characteristics of the ceramic insulators.