公开(公告)号：US20210025621A1

公开(公告)日：2021-01-28

申请号：US16938543

申请日：2020-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Jusu KIM ,  Doyong Ha ,  Yongki Jeong ,  Janghee Park ,  Hansaem Park

IPC: F24H3/02 ,  F23D14/22 ,  F23D14/48 ,  F24H9/00

Abstract: Provided is a gas furnace. The gas furnace includes: a manifold with an exhaust port for discharging fuel gas; a nozzle attached to the exhaust port; a burner for burning a mixture of air and fuel gas ejected from the nozzle; a primary heat exchanger that provides a first flow path and allows a combustion gas produced by the combustion of the mixture to move through the first flow path; and a secondary heat exchanger located adjacent to the primary heat exchanger, that provides a second flow path and allows the combustion gas discharged from the primary heat exchanger to move through the second flow path, wherein the secondary heat exchanger includes: at least one tube forming the second flow path; and a baffle inserted into the at least one tube, the baffle including: a plate longitudinally extending in a lengthwise direction and twisted in the shape of a screw; and a plurality of holes formed to penetrate the plate.

公开(公告)号：US20210025616A1

公开(公告)日：2021-01-28

申请号：US16935910

申请日：2020-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Jusu KIM ,  Doyong Ha ,  Yongki Jeong ,  Janghee Park ,  Hansaem Park

IPC: F24F11/65 ,  F24D5/04 ,  F24H3/02 ,  F24F13/02 ,  F24H9/00 ,  F24F11/00 ,  B01D53/26 ,  B01D53/06

Abstract: A gas furnace includes: a burner in which a mixture of air and fuel gas burns; a heat exchanger through which a combustion gas produced by the combustion of the mixture flows; a duct including a room air duct through which air coming from a room passes and a supply air duct through which air supplied to the room passes; a blower that induces a flow of the room air supplied as the supply air to the room through the heat exchanger; and a humidification and dehumidification device with no water supply installed on one side of the supply air duct. The amount of moisture contained in the supply air is adjusted by an adsorbent coated on the surface of the humidification and dehumidification device with no water supply.

公开(公告)号：US10378779B2

公开(公告)日：2019-08-13

申请号：US15093550

申请日：2016-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Janghee Park ,  Yongki Jeong ,  Baikyoung Chung

IPC: F24D5/04 ,  F24D19/10 ,  F24H3/08

Abstract: Disclosed is a gas furnace for indoor heating. The gas furnace includes a burner to generate high-temperature exhaust gas, an exhaust flow path, a blower to suction indoor air through a recovery flow path, a supply flow path to guide the indoor air to the indoor space after undergoing heat exchange in the exhaust flow path, and a fuel supply unit including a fuel supply line and a fuel discharge line, configured to supply fuel to the burner, and a valve between the fuel supply line and the fuel discharge line. The valve includes a step motor, and a blocking member coupled to a rotating shaft of the step motor and configured to move straight via by driving of the step motor, and an opening degree of the valve between the fuel supply line and the fuel discharge line is adjusted by the straight movement of the blocking member.

公开(公告)号：US10125997B2

公开(公告)日：2018-11-13

申请号：US14864255

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Janghee Park ,  Yongki Jeong ,  Jaebeom Lim

IPC: F24C3/08 ,  F23D14/84

Abstract: Provided is a burner including a burner head to receive a mixed gas; and a burner cap to cover the burner head, wherein the burner head includes an outer wall having a plurality of first flame holes at which a flame is generated, an inner wall located at an inside of the outer wall and having a plurality of second flame holes at which a flame is generated, and a mixed gas chamber defined between the outer wall and the inner wall, and the burner cap includes a distribution guide to guide a flow of the mixed gas so that the mixed gas introduced into the mixed gas chamber is evenly distributed in the mixed gas chamber.

公开(公告)号：US20170176024A1

公开(公告)日：2017-06-22

申请号：US15379100

申请日：2016-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Janghee PARK ,  Yongki Jeong ,  Baikyoung Chung

IPC: F24D19/10

CPC classification number: F24D19/1084

Abstract: A gas furnace for heating an indoor space including a burner forming high-temperature exhaust gas by combusting fuel; an exhaust path in which the exhaust gas flows; a blower for suctioning internal air via a suction path; a supply path for guiding the internal air exhausted by the blower toward the indoor space, after heat-exchanged with the exhaust path; a valve of which an opening degree is controllable so as to supply a predetermined heat-power-based amount of fuel to the burner; and a controller controlling the opening degree of the valve based on a signal transmitted from a thermostat installed in the indoor space, wherein the heat power of the burner is controlled in different heat power levels based on the opening degree of the valve, and a controlling method of the gas furnace for heating the indoor space.