초록 ▼

A fluid pump speed controller apparatus for ensuring adequate system fluid pressure while minimizing energy consumption. The fluid pump speed controller has an adjustable frequency motor drive and control circuits to vary fluid pump motor speeds based on system fluid demand, monitored by a sensor. T

A fluid pump speed controller apparatus for ensuring adequate system fluid pressure while minimizing energy consumption. The fluid pump speed controller has an adjustable frequency motor drive and control circuits to vary fluid pump motor speeds based on system fluid demand, monitored by a sensor. The control circuits set the pump speed, based on input from the sensor. The control circuits also set parameters in the control circuit logic, and are capable of self calibration and controlling multiple fluid pumps.

대표청구항 ▼

[ What is claimed is:] [1.] A motor speed controller for operating at least one pump at discrete speeds while minimizing energy and speed variations, comprising:a) an electric motor;b) means operatively connected to said motor for controlling the speed thereof, said motor controlling means comprisin

[ What is claimed is:] [1.] A motor speed controller for operating at least one pump at discrete speeds while minimizing energy and speed variations, comprising:a) an electric motor;b) means operatively connected to said motor for controlling the speed thereof, said motor controlling means comprising means for setting at least one set point representative of the maximum speed of said motor; andc) an adjustable frequency drive operatively connected to said motor controlling means and to said motor for applying a signal representative of said controlling means to said motor.