公开(公告)号：US20210033305A1

公开(公告)日：2021-02-04

申请号：US16941325

申请日：2020-07-28

Applicant: LG ELECTRONICS INC.

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

IPC: F24H6/00 ,  F24H1/18 ,  F23M9/00 ,  F28F9/26

Abstract: Provided is a gas furnace including a primary heat exchanger and a secondary heat exchanger through which a combustion gas produced by the combustion of a fuel gas flows. The gas furnace includes: a coupling box serving as an intermediary to connect the primary heat exchanger and the secondary heat exchanger; a collect box connected to the secondary heat exchanger, for letting in the combustion gas passed through the secondary heat exchanger; an inducer connected to the collect box, for inducing a flow of the combustion gas; and a bypass pipe connected to one side of the coupling box and including a bypass pipe for guiding the combustion gas passed through the primary heat exchanger to a hot water supply tank for supplying hot water to an indoor space.

公开(公告)号：US11898799B2

公开(公告)日：2024-02-13

申请号：US16557163

申请日：2019-08-30

Applicant: LG ELECTRONICS INC.

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

IPC: F27D21/00 ,  F24H3/02 ,  F24H9/20 ,  F24H15/208 ,  F24H15/395 ,  F24H15/20 ,  F24H15/35 ,  F24H15/254 ,  F24H15/414 ,  F24H15/176 ,  F24H15/128 ,  F24H15/281

CPC classification number: F27D21/0014 ,  F24H3/022 ,  F24H9/2085 ,  F24H15/20 ,  F24H15/208 ,  F24H15/35 ,  F24H15/395 ,  F24H15/128 ,  F24H15/176 ,  F24H15/254 ,  F24H15/281 ,  F24H15/414

Abstract: A method of controlling an RPM of a blower for a gas furnace that passes air to be supplied to a room around a heat exchanger of a gas furnace, the method including starting operation of the gas furnace; measuring an air temperature in an outlet side of the gas furnace; measuring the RPM of the blower; determining whether the air temperature falls within a reference temperature range; and adjusting the RPM of the blower such that the air temperature falls within the reference temperature range.

公开(公告)号：US20200033027A1

公开(公告)日：2020-01-30

申请号：US16522759

申请日：2019-07-26

Applicant: LG ELECTRONICS INC.

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

IPC: F24H9/00 ,  F24H3/06 ,  F24H3/10 ,  F24H9/02

Abstract: A gas furnace includes: a combustion part in which a fuel gas is burnt to generate a combustion gas; a heat exchanger having a gas flow path through which the combustion gas flows; a blower configured to blow air around the heat exchanger; and an inducer configured to discharge the combustion gas from the heat exchanger, wherein the heat exchanger includes: at least one single path in which a single gas flow path is formed; a single-multiple return bend configured to communicate with the single path and convert a flow direction of the combustion gas; and at least one multiple path having a plurality of paths that communicate with the single-multiple return bend and form multiple gas flow paths.

公开(公告)号：US20190353386A1

公开(公告)日：2019-11-21

申请号：US16391847

申请日：2019-04-23

Applicant: LG ELECTRONICS INC.

Inventor： Juyoun LEE ,  Soojin Kang ,  Jusu Kim

IPC: F24F11/79 ,  F24F1/0014 ,  F24F1/0047

Abstract: A method of controlling a ceiling type air conditioner including a panel located on a ceiling surface, outlets formed at positions corresponding to four sides of the panel, a first vane group for opening and closing the outlets located at two opposing sides, and a second vane group for opening and closing the outlets located at the other two opposing sides includes performing a dynamic airflow mode in which an indoor temperature reaches a set temperature by controlling rotation angles of the first vane group and the second vane group, and calculating a pleasant airflow index Y for determining a pleasant feeling of a user at the set temperature. The pleasant airflow index is calculated using the indoor temperature, the rotation angle of the first vane group or the second vane group, an air volume, a distance from a floor surface and an airflow position as variables.

公开(公告)号：US10254735B2

公开(公告)日：2019-04-09

申请号：US15051160

申请日：2016-02-23

Applicant: LG ELECTRONICS, INC.

Inventor： Jusu Kim ,  Sangwon Kim ,  Daehyun Choi ,  Kyoungteak Lee

IPC: G05D17/00 ,  G05B19/048 ,  H04L12/12 ,  H04L12/28 ,  F24F5/00 ,  H02J3/14 ,  F24F140/50 ,  F24F11/46

Abstract: A network system and a method for controlling the same include where a power consumption amount of an electrical appliance is monitored based on an operation of the electrical appliance. If a demand response (DR) signal for requesting power saving is received, it is determined whether a user is to participate in a DR event for a power-saving operation of the electrical appliance. If it is determined that the user is to participate in the DR event, the power-saving operation of the electrical appliance is performed based on previously mapped information on a discomfort caused by the power-saving operation of the electrical appliance.

公开(公告)号：US11971189B2

公开(公告)日：2024-04-30

申请号：US17550082

申请日：2021-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Beomchan Kim ,  Jusu Kim ,  Eunseong Pack ,  Yeongpin Chu ,  Janghoon Shin ,  Jaeik Jang

IPC: F24F12/00 ,  F24F1/0035 ,  F24F1/0083 ,  F24F3/14 ,  F24F3/153 ,  F24F13/22 ,  F24F13/30

CPC classification number: F24F12/00 ,  F24F1/0035 ,  F24F1/0083 ,  F24F3/1405 ,  F24F3/153 ,  F24F13/222 ,  F24F13/30 ,  F24F2003/1452

Abstract: An air conditioner may include an outdoor unit including a compressor and an outdoor heat exchanger configured to heat exchange compressed refrigerant; an indoor unit having an air inlet and an air outlet and connected with the outdoor unit through a first pipe through which refrigerant discharged from the compressor flows and a second pipe through which refrigerant discharged from the outdoor heat exchanger flows; a blowing fan disposed in the indoor unit; a main heat exchanger configured to heat exchange air, which flows inside through the air inlet, and connected with the second pipe; a reheat exchanger disposed downstream of the main heat exchanger and connected with the first pipe; and a waste heat exchanger disposed upstream of the main heat exchanger and configured to heat-exchange air, which flows inside through the air inlet, and condensate water, which is produced at the main heat exchanger, with each other. Accordingly, air flowing inside through the air inlet is primarily cooled before exchanging heat through the main heat exchanger, whereby the cooling and dehumidifying performance is improved.

公开(公告)号：US11767974B2

公开(公告)日：2023-09-26

申请号：US17091188

申请日：2020-11-06

Applicant: LG ELECTRONICS INC.

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

IPC: F23D14/02 ,  F23D14/62

CPC classification number: F23D14/02 ,  F23D14/62 ,  F23D2203/007 ,  F23D2203/105

Abstract: A gas furnace according to an embodiment of the present disclosure includes: a mixer for mixing 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 for producing 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 includes: a plurality of burners, to which a flame produced during combustion of the mixture is anchored; a mixing chamber serving as a medium for delivering the mixture from the mixing pipe to the burners. Accordingly, a full premixing mechanism may be provided, and a mixing rate of the fuel gas and the air may be maximized, thereby greatly reducing nitrogen oxide emissions. Further, the burner assembly includes a uniform guide disposed inside the mixing chamber and allowing the mixture to be uniformly distributed to each of the plurality of burners, thereby preventing an increase in local flame temperature, and greatly reducing nitrogen oxide emissions.

公开(公告)号：US11747039B2

公开(公告)日：2023-09-05

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 ,  B01D53/06 ,  B01D53/26 ,  F24D5/04 ,  F24F11/00 ,  F24F13/02 ,  F24H3/02 ,  F24H9/00 ,  F24F3/14

CPC classification number: F24F11/65 ,  B01D53/06 ,  B01D53/261 ,  F24D5/04 ,  F24F11/0008 ,  F24F13/0236 ,  F24H3/025 ,  F24H9/0063 ,  B01D2253/25 ,  B01D2257/80 ,  B01D2259/40088 ,  F24F3/1423 ,  F24F2203/1004

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：US11639793B2

公开(公告)日：2023-05-02

申请号：US17091164

申请日：2020-11-06

Applicant: LG ELECTRONICS INC.

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

IPC: F23D14/02 ,  F23D14/64 ,  F23L5/02 ,  F23N1/02 ,  F24D5/02

Abstract: A gas furnace according to an embodiment of the present disclosure includes: a mixer for mixing 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 for producing a combustion gas by burning the mixture having passed through the mixing pipe; a heat exchanger through which the combustion gas flows; an exhaust pipe through which an exhaust gas, as the combustion gas having passed through the heat exchanger, is discharged outside of the gas furnace; and an inducer for inducing a flow of a fluid through the intake pipe, the mixer, the mixing pipe, the burner assembly, the heat exchanger, and the exhaust pipe. In this case, the mixer has a front end connected to the intake pipe, a rear end connected to the mixing pipe, and a side surface connected to the manifold.

公开(公告)号：US11592176B2

公开(公告)日：2023-02-28

申请号：US16940581

申请日：2020-07-28

Applicant: LG ELECTRONICS INC.

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

IPC: F23N3/08 ,  F04D27/00 ,  F24H3/06 ,  F24H9/20

Abstract: Provided is an RPM control method for an inducer for a gas furnace that induces a flow of combustion gas produced in a burner from a heat exchanger to an exhaust pipe. The RPM control method for an inducer for a gas furnace includes: (a) initiating a heating operation for the gas furnace; (b) determining whether the operation time during which the heating operation is performed is equal to or longer than a first time period; (c) if it is determined that the operation time is equal to or longer than the first time period, detecting whether a pressure switch is turned OFF; and (d) if the pressure switch is detected as turned OFF, increasing the RPM of the inducer by a first value.