System and method for controlling a variable speed...

Details System and method for controlling a variable speed... System and method for controlling a variable speed...

2011-04-12

2011-04-12

Kramer, Devon C (Department: 3746)

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

C417S026000, C417S012000, C417S053000

Reexamination Certificate

active

07922457

ABSTRACT:
A compressor system operable to shutdown in response to a shutdown signal. The compressor system includes a compression device operable between a first speed and a second speed to produce a flow of compressed fluid at a pressure. A blowdown valve is movable between a closed position and an open position in which at least a portion of the flow of compressed fluid passes through the blowdown valve to reduce the pressure of the flow of compressed fluid. A sensor is positioned to measure the pressure and a controller is operable to move the blowdown valve to the open position and set the speed of the compression device to a low set point speed in response to the shutdown signal.

REFERENCES:
patent: 3692430 (1972-09-01), Timmons
patent: 4335582 (1982-06-01), Shaw et al.
patent: 5515676 (1996-05-01), Earle et al.
patent: 5820352 (1998-10-01), Gunn et al.
patent: 6450771 (2002-09-01), Centers et al.
patent: 6474950 (2002-11-01), Waldo
patent: 6530240 (2003-03-01), Kountz et al.
patent: 1534194 (2004-10-01), None

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