US 12,467,653 B2
System and method for controlling indoor environments
Richard C. Furman, Atlanta, GA (US); and Zachary M. Thomas, Pittsburgh, PA (US)
Assigned to FT Energy Controls, LLC, Pittsburgh, PA (US)
Filed by FT Energy Controls, LLC, Pittsburgh, PA (US)
Filed on Feb. 2, 2024, as Appl. No. 18/431,545.
Claims priority of provisional application 63/581,064, filed on Sep. 7, 2023.
Claims priority of provisional application 63/443,028, filed on Feb. 2, 2023.
Prior Publication US 2024/0263827 A1, Aug. 8, 2024
Int. Cl. F24F 11/85 (2018.01); F24F 11/84 (2018.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01); F24F 140/20 (2018.01)
CPC F24F 11/85 (2018.01) [F24F 11/84 (2018.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01); F24F 2140/20 (2018.01)] 21 Claims
OG exemplary drawing
 
1. A system comprising:
a supply input port;
a load return port;
a recirculation pump for pumping liquid from a pump input port to a pump output port, the pump input port connected to receive a first portion of liquid flowing from the load return port;
a junction to combine liquid flowing from the pump output port with liquid flowing from the supply input port;
a load input port to receive such combined liquid from the junction;
a supply return port connected to receive a remaining portion of the liquid flowing from the load return port;
an actuator comprising a control pump to control flow of liquid between the supply input port and the supply return port at least in part by modulating a speed of the control pump;
a sensor to measure a property of the liquid flowing through the load input port; and
a control module to control the control pump and the recirculation pump based at least in part on a measurement from the sensor.