US 12,085,964 B2
Smart pressure regulator for emergency evacuation inflation system
Poly Puthur John, Banglore (IN); Ashish Kumar Agarwal, Bangalore (IN); and Petchi Subramanian, Bangalore (IN)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by GOODRICH CORPORATION, Charlotte, NC (US)
Filed on Jul. 5, 2022, as Appl. No. 17/857,829.
Claims priority of application No. 202141056154 (IN), filed on Dec. 3, 2021.
Prior Publication US 2023/0175608 A1, Jun. 8, 2023
Int. Cl. G05D 16/20 (2006.01); B64D 25/14 (2006.01); F16K 31/04 (2006.01); F16K 31/06 (2006.01); F16K 37/00 (2006.01)
CPC G05D 16/202 (2013.01) [B64D 25/14 (2013.01); F16K 31/046 (2013.01); F16K 31/0644 (2013.01); F16K 31/0648 (2013.01); F16K 31/0655 (2013.01); F16K 31/0658 (2013.01); F16K 31/0668 (2013.01); F16K 37/005 (2013.01); G05D 16/2022 (2019.01)] 17 Claims
OG exemplary drawing
 
1. A valve arrangement for a pressurized fluid source, the valve arrangement comprising:
a valve housing comprising an inlet, an outlet, and a main fluid channel extending along a longitudinal axis of the valve housing;
a regulating valve poppet located in the main fluid channel, the regulating valve poppet configured to translate along the longitudinal axis of the valve housing;
a linear stepper motor configured to control a position of the regulating valve poppet;
a pressure sensor located between the regulating valve poppet and the outlet;
a temperature sensor located between the regulating valve poppet and the outlet; and
a controller,
wherein the controller is configured to receive a pressure feedback signal from the pressure sensor, and to control the linear stepper motor based upon the pressure feedback signal to maintain a substantially constant output pressure of the pressurized fluid source,
wherein the controller is configured to receive a temperature feedback signal from the temperature sensor, and to vary the feed rate of input DC voltage pulses to the linear stepper motor, and
wherein the controller is configured to vary the feed rate of input DC voltage pulses to the linear stepper motor based on preset outlet pressure vs. time values and based on preset valve stroke vs. inflation time values.