Patent ID: 9254826
Filing Date: 2016-02-09
CPC Classification: B01D,B60T

Claim Text:
1. A purge control method of an air tank, comprising: compressing air in an air compressor; removing moisture from the air through a cartridge after the compressing the air; storing the air, subsequently to the removing the moisture, in the air tank; measuring and determining an internal pressure of the air tank after the storing the air in the air tank; operating a first solenoid valve if the internal pressure of the air tank exceeds a first predetermined pressure; determining whether or not a second solenoid valve is operable after the operating the first solenoid valve; operating the second solenoid valve if the second solenoid valve is operable; operating a purge valve, concurrently with or subsequently to the operating the second solenoid valve, to improve performance of the cartridge, thereby removing the moisture in the air tank; measuring and determining the internal pressure of the air tank after the operating the purge valve; and turning off the first and second solenoid valves if the internal pressure of the air tank measured and determined after the operating the purge valve is less than a second predetermined pressure.