Patent ID: 11959473
Assignee: EATON-MAX, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A method of operating a reciprocating piston air compressor having a tank for storing compressed air, a reciprocating piston pump for compressing air and delivering it to the tank, an electric motor for driving the pump, an outlet for delivering compressed air from the tank for use external to the tank, a variable speed drive, a solenoid valve, and a programmable logic controller for controlling operation of the air compressor, the method including the step of:
utilizing the programmable logic controller to open the solenoid valve during startup of the electric motor;
utilizing the programmable logic controller to monitor the operating speed of the electric motor; and
utilizing the programmable logic controller to close the solenoid valve when the operating speed of the electric motor reaches a desired speed.