Motor control system for a constant flow vacuum pump

Details Motor control system for a constant flow vacuum pump Motor control system for a constant flow vacuum pump

1993-06-01

1996-05-28

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417 4411, F04B 4906

Patent

active

055205178

ABSTRACT:
The invention is a constant flow pump control system that compensates for a change in gas flow rate that is caused by a change in the load resistance, by making the speed change inversely with the change in load resistance, desirably by sensing the change in pressure and changing speed by an amount related to the pump performance characteristic that is required to restore the flow rate to its selected value. In a preferred embodiment the system includes a closed loop pump speed control in which a selected flow rate reference is combined with a pressure feedback to provide an inverse change in the pump speed reference function or a direct change in the motor speed feedback function to compensate for the change in flow rate caused by a change in flow resistance.

REFERENCES:
patent: 4384825 (1983-05-01), Thomas et al.
patent: 4527953 (1985-07-01), Baker et al.
patent: 5269659 (1993-12-01), Hampton et al.
patent: 5295790 (1994-03-01), Bossart et al.

Affiliated with

Also associated with

Rating

Motor control system for a constant flow vacuum pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor control system for a constant flow vacuum pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor control system for a constant flow vacuum pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-782181