Patent ID: 6244824
Filing Date: 2001-06-12
Classification: F04B,F04C,G05B,G05D,G06F,G07C

Abstract:
A method of electronically preventing reverse rotation operation in a rotary air compressor connected by a sump to an air pressure system, the sump having a pressure sensor for measuring positive pressure in the sump, the method comprising the acts of:storing a wait time and a predetermined minimum operating pressure value;receiving an instruction to start the compressor;detecting the start instruction and starting the compressor;automatically retrieving the wait time and predetermined minimum operating positive pressure value;automatically waiting until the expiration of the wait time after starting of the compressor and then determining the magnitude of the positive pressure in the sump using the sump pressure sensor; andautomatically stopping the compressor and providing a reverse rotation indication if the determined pressure is less than the predetermined minimum operating positive pressure value at the expiration of the wait time.