US 12,111,069 B1
Apparatus for stabilizing blade for relief damper
Jin Soo Kim, Goyang-si (KR); Hyun Ok Lee, Goyang-si (KR); and Sul Ki Kim, Goyang-si (KR)
Assigned to Jin Soo Kim; and Hyun Ok Lee
Appl. No. 18/704,057
Filed by Jin Soo Kim, Goyang-si (KR); and Hyun Ok Lee, Goyang-si (KR)
PCT Filed Nov. 30, 2022, PCT No. PCT/KR2022/019159
§ 371(c)(1), (2) Date Apr. 24, 2024,
PCT Pub. No. WO2023/101388, PCT Pub. Date Jun. 8, 2023.
Claims priority of application No. 10-2021-0171334 (KR), filed on Dec. 2, 2021.
Int. Cl. F24F 13/14 (2006.01)
CPC F24F 13/1426 (2013.01) [F24F 2013/1466 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A blade stabilization apparatus for a relief damper, comprising:
a rotating shaft installed on a relief damper side;
a damper blade which is always balanced on the rotating shaft when no pressure is acting thereon while being horizontally positioned on the rotating shaft; and
a counterweight installed perpendicular to a centerline of the rotating shaft,
wherein a center of gravity of the entire damper blade is necessarily aligned with the centerline of the rotating shaft perpendicular to the damper blade, and
wherein the damper blade opens or closes by itself while rotating about the rotating shaft according to a pressure difference acting on the damper blade when pressure acts on the damper blade.