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

Claim 3:
4. The spark plug heat rating measurement method of claim 1, wherein: the spark discharge current is dynamically adjusted to control the temperatures of spark plasma channels of the spark plugs; the spark plasma channels are used to heat up the high-voltage electrodes of the spark plugs with different heat ratings; in the meantime, the discharge voltages at the spark plug terminals of the spark plugs and the spark discharge current are measured to calculate the heating powers of the spark plugs; with the constant spark discharge current control module, spark discharge current levels is adjusted in real time to ensure the instantaneous heating powers of the different spark plugs are the same during the heating process; with different heating durations, the high voltage electrodes and the surrounding ceramic insulators of the different spark plugs can be heated to the same temperature; the temperature changes of the high-voltage central electrodes and the surrounding ceramic insulators during the heating process are measured to evaluate the heat ratings of the spark plugs.