US 12,435,874 B2
Dual venturi
Kyu Hong Lee, Seoul (KR); Choong Gon Lee, Seoul (KR); and Jun Kyu Park, Seoul (KR)
Assigned to KYUNGDONG NAVIEN CO., LTD., Gyeonggi-do (KR)
Filed by KYUNGDONG NAVIEN CO., LTD., Gyeonggi-do (KR)
Filed on Dec. 1, 2023, as Appl. No. 18/525,913.
Claims priority of application No. 10-2022-0168035 (KR), filed on Dec. 5, 2022.
Prior Publication US 2024/0183534 A1, Jun. 6, 2024
Int. Cl. F23N 1/02 (2006.01); F23D 14/04 (2006.01); F23D 14/60 (2006.01); F23D 14/62 (2006.01)
CPC F23N 1/027 (2013.01) [F23D 14/04 (2013.01); F23D 14/60 (2013.01); F23D 14/62 (2013.01); F23N 2235/24 (2020.01); F23N 2237/10 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A dual venturi comprising:
a housing comprising a housing body opened in a reference direction, an inner partition wall through which an inner space of the housing body is divided into a first conduit and a second conduit, and a gas providing part provided with a first gas conduit passing through the first conduit to allow the first conduit to communicate with the outside of the housing and a second gas conduit configured to allow the second conduit to communicate with the outside of the housing;
an opening/closing unit disposed in the inner space of the housing body to open and close the second gas conduit and the second conduit; and
a driver connected to the opening/closing unit to provide driving force to the opening/closing unit,
wherein the second gas conduit comprises:
a (second-1)th gas conduit configured to communicate with the outside of the housing and opened and closed by the opening/closing unit; and
a (second-2)th gas conduit configured to allow the (second-1)th gas conduit to communicate with the second conduit,
wherein the opening/closing unit comprises a damper configured to control a flow of gas flowing through the second gas conduit,
wherein the damper moves in a longitudinal direction of the (second-1)th gas conduit inside the (second-1)th gas conduit by the driver to control the flow of gas,
wherein one end of the second gas conduit comprises an opening that is exposed to the outside of the housing,
the damper moves along the longitudinal direction of the (second-1)th toward the opening by the driver to open the (second-1)th gas conduit, and
the damper moves in a direction opposite to the direction facing the opening to close the (second-1)th gas conduit.