US 11,767,974 B2
Gas furnace
Janghee Park, Seoul (KR); Doyong Ha, Seoul (KR); Yongki Jeong, Seoul (KR); Jusu Kim, Seoul (KR); and Hansaem Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Nov. 6, 2020, as Appl. No. 17/91,188.
Claims priority of application No. 10-2019-0141387 (KR), filed on Nov. 7, 2019.
Prior Publication US 2021/0140630 A1, May 13, 2021
Int. Cl. F23D 14/02 (2006.01); F23D 14/62 (2006.01)
CPC F23D 14/02 (2013.01) [F23D 14/62 (2013.01); F23D 2203/007 (2013.01); F23D 2203/105 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A gas furnace, comprising:
a mixer that mixes air and a fuel gas, which are introduced through an intake pipe and a manifold, respectively, to form a mixture;
a mixing pipe through which the mixture, having passed through the mixer, flows;
a burner assembly that produces a combustion gas by burning the mixture having passed through the mixing pipe; and
heat exchangers through which the combustion gas flows, wherein the burner assembly comprises:
a plurality of burners spaced apart from each other at predetermined intervals in a first lateral direction, to which flames produced during combustion of the mixture are anchored;
a mixing chamber that serves as a medium for delivery of the mixture from the mixing pipe to the plurality of burners; and
a uniform guide disposed inside of the mixing chamber and that allows the mixture to be uniformly distributed to each of the plurality of burners, wherein the uniform guide is formed as a distribution plate which is disposed in an inner space of the mixing chamber, extends in the first lateral direction, is connected to an inner surface in the first lateral direction of the mixing chamber, and is spaced apart by a predetermined distance from the inner surface in a longitudinal direction of the mixing chamber, and wherein the plurality of burners is spaced apart from the uniform guide in a second lateral direction.