Patent ID: 7252483
Filing Date: 2007-08-07
Classification: F04B,G05B

Abstract:
1. A method of managing time, at which maintenance in a gas compressor multiple system should be carried out, the method comprising using the formula (i) to find an operating time M for management of time: where T is the operating time of a gas compressor multiple system, L is the average load factor of a plurality of gas compressors, and C is the safety factor, at which maintenance of the gas compressor multiple system incorporating therein a plurality of gas compressors should be carried out, and making a comparison between a value of M and a predetermined time N for necessary maintenance to carry out the maintenance when the value of M is larger than or substantially equal to a value of N, the average load factor L of the plurality of gas compressors being calculated by the formula (ii): where S is the total operating time of a plurality of gas compressors incorporated in a gas compressor multiple system, P is the number of gas compressors incorporated in a gas compressor multiple system, and T is the operating time of a gas compressor multiple system.