Ventilation – Vehicle – Pressure regulation
Reexamination Certificate
2005-12-27
2005-12-27
Joyce, Harold (Department: 3749)
Ventilation
Vehicle
Pressure regulation
Reexamination Certificate
active
06979257
ABSTRACT:
A pressure control system including an inflow unit for admitting pressurized air into a cabin, an outflow unit including a motor for operating a valve to discharge air from the cabin at a predetermined rate based on an motor control signal that sets the motor speed, a control unit, and an air pressure sensor within the cabin for determining a pressure signal. The control unit receives the pressure signal and computes a pressure rate of change error signal to set the motor control signal. The outflow unit, control unit, and air pressure sensor form a feedback control loop independent of motor speed, valve speed, or valve position feedback.
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Biss Timothy C.
Gallagher Kenneth M.
Horner Darrell W.
McCoy Gerard L.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Joyce Harold
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