US 12,416,426 B2
Linearization of airflow through zone dampers of an HVAC system
Christopher M. Puranen, Montgomery, AL (US); and Stephen Maciulewicz, Montgomery, AL (US)
Assigned to Rheem Manufacturing Company, Atlanta, GA (US)
Filed by Rheem Manufacturing Company, Atlanta, GA (US)
Filed on Jun. 1, 2023, as Appl. No. 18/204,698.
Application 18/204,698 is a continuation of application No. 17/750,259, filed on May 20, 2022, granted, now 11,703,249.
Application 17/750,259 is a continuation of application No. 16/866,032, filed on May 4, 2020, granted, now 11,339,991, issued on May 24, 2022.
Application 16/866,032 is a continuation of application No. 15/850,609, filed on Dec. 21, 2017, granted, now 10,641,515, issued on May 5, 2020.
Prior Publication US 2023/0304693 A1, Sep. 28, 2023
Int. Cl. F24F 11/74 (2018.01); F24F 3/044 (2006.01); F24F 3/052 (2006.01); F24F 11/62 (2018.01); F24F 110/40 (2018.01); F24F 140/40 (2018.01)
CPC F24F 11/74 (2018.01) [F24F 3/044 (2013.01); F24F 3/0527 (2013.01); F24F 11/62 (2018.01); F24F 2110/40 (2018.01); F24F 2140/40 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A system in communication with a fan and a first damper that is configured to move from a first position to a second position, and from the second position to a third position, the system comprising:
a controller configured to:
determine a first corrective positional adjustment for the first damper for the second position at a first time interval;
determine, using the first corrective positional adjustment, a fourth position for the first damper, wherein the first damper moves to the fourth position instead of the second position during a second time interval; and
determine, after the first damper is in the fourth position, that airflow through the system is linear;
wherein the first damper is for a first zone of the system.