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公开(公告)号：US12007142B2
公开(公告)日：2024-06-11
申请号：US17551768
申请日：2021-12-15
Applicant: LG ELECTRONICS INC.
Inventor： Beomchan Kim , Jusu Kim , Eunseong Pack , Yeongpin Chu , Janghoon Shin , Jaeik Jang
CPC classification number: F24F3/153 , F25B40/02 , F25B41/24 , F25B41/40 , F24F2003/144
Abstract: An air conditioner may include a case having a supply channel therein through which external air flows into an interior space; a first heat exchanger disposed on the supply channel and in which the air and refrigerant exchange heat; a second heat exchanger disposed at a downstream side of the first heat exchanger in the supply channel, and in which the air and refrigerant exchange heat; and a refrigerant distributor that sends refrigerant to the first heat exchanger or the second heat exchanger. The refrigerant distributor may include a liquid pipe connected with the first heat exchanger and through which liquid-state refrigerant flows; a first gas pipe connected to the first heat exchanger and the second heat exchanger and through which gas-state refrigerant flows; a second gas pipe through which gas-state refrigerant discharged from the first heat exchanger flows; a first gas pipe valve disposed on the first gas pipe and that sends refrigerant flowing through the first gas pipe to the first heat exchanger or the second heat exchanger; and a second gas pipe valve disposed on the second gas pipe and that opens and closes the second gas pipe.
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公开(公告)号：US11592207B2
公开(公告)日：2023-02-28
申请号：US17266578
申请日：2019-08-08
Applicant: LG ELECTRONICS INC.
Inventor： Hansaem Park , Jusu Kim , Janghee Park , Yongki Jeong , Doyong Ha
Abstract: The present disclosure relates to a condensate trap for a gas furnace for collecting and discharging condensate generated in a heat exchanger and an exhaust pipe, the condensate trap including: a first inlet through which the condensate generated in the heat exchanger is introduced; a second inlet through which the condensate generated in the exhaust pipe is introduced; a first passage through which the condensate introduced from the first inlet passes; a second passage through which the condensate introduced from the second inlet passes; a discharge port through which the condensate, having passed through the first passage and the second passage, is discharged outside; and a backflow prevention device disposed on the first passage and configured to prevent backflow of air, wherein the backflow prevention device includes: a housing; and a core which is movably disposed in the housing, and which in response to an amount of the condensate introduced from the first inlet being less than or equal to a predetermined amount, prevents backflow of the air by closing the first passage.
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公开(公告)号：US11499750B2
公开(公告)日：2022-11-15
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
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.
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公开(公告)号：US12066186B2
公开(公告)日：2024-08-20
申请号：US17273795
申请日：2019-09-10
Applicant: LG ELECTRONICS INC.
Inventor： Doyong Ha , Yongki Jeong , Janghee Park , Jusu Kim , Hansaem Park
IPC: F23N5/24 , F24H9/20 , F24H15/254 , F24H15/31 , F24H15/281 , F24H15/395 , F24H15/414
CPC classification number: F23N5/245 , F24H9/20 , F24H15/254 , F24H15/31 , F23N2223/08 , F23N2237/06 , F23N2237/10 , F23N2239/04 , F23N2241/02 , F23N2900/01001 , F24H15/281 , F24H15/395 , F24H15/414
Abstract: A method for controlling a gas furnace including measuring an indoor temperature, comparing the indoor temperature with a set temperature for heating, and operating the gas furnace in weak heating with a predetermined heating capacity, which is lower than a maximum heating capacity of the gas furnace, when the set temperature for heating is higher than the indoor temperature by a temperature value, which is less than a predetermined temperature value. The predetermined heating capacity for weak heating is maintained at a current heating capacity for weak heating, when the gas furnace operates in weak heating, and when an operating duration with the current heating capacity for weak heating is less than a first time value.
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公开(公告)号：US20230250976A1
公开(公告)日：2023-08-10
申请号：US18106575
申请日：2023-02-07
Applicant: LG ELECTRONICS INC.
Inventor： Jusu Kim , Sungoh Choi , Beomchan Kim , Youngheon Kwon , Yeoji Jung , Dongkeun Yang
Abstract: An air conditioner is provided that may include a case having a supply flow path formed therein and through which outside air flows into an interior space, a first heat exchanger disposed on the supply flow path, in which refrigerant flows, and that exchanges heat between the air and the refrigerant, a second heat exchanger disposed downstream of the second heat exchanger on the supply flow path, in which refrigerant selectively flows, and that exchanges heat between the air and the refrigerant, and a refrigerant distributer configured to send the refrigerant to the first heat exchanger or the second heat exchanger.
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Patent Agency Ranking
公开(公告)号：US11629883B2
公开(公告)日：2023-04-18
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 , F27B21/00 , F28D7/08 , F28D7/16 , F28D9/00 , F28F13/08 , F28D21/00 , F24H3/08 , F24H8/00 , F28F1/02 , F28F3/12 , F28D1/047 , F28F1/42
Abstract: A gas furnace is provided. The 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. 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.
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公开(公告)号：US11441785B2
公开(公告)日：2022-09-13
申请号：US16885687
申请日：2020-05-28
Applicant: LG ELECTRONICS INC.
Inventor： Janghee Park , Jusu Kim , Hansaem Park , Yongki Jeong , Doyong Ha
Abstract: Disclosed is a gas furnace including a mixer configured to mix air and fuel gas introduced from an intake pipe and a manifold respectively so as to produce an air-fuel mixture, a mixing pipe configured to allow the air-fuel mixture having passed through the mixer to flow therein, a burner assembly configured to combust the air-fuel mixture having passed through the mixing pipe so as to generate combustion gas, heat exchangers configured to allow the combustion gas to flow therein, an exhaust pipe configured to discharge exhaust gas, which is the combustion gas having passed through the heat exchangers, to the outside. The gas furnace further includes a recirculator installed around the exhaust pipe and configured to guide a portion of the exhaust gas flowing in the exhaust pipe to the mixer, and may thus greatly reduce or fundamentally block NOx emissions.
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公开(公告)号：US11624504B2
公开(公告)日：2023-04-11
申请号：US16726368
申请日：2019-12-24
Applicant: LG ELECTRONICS INC.
Inventor： Doyong Ha , Yongki Jeong , Janghee Park , Jusu Kim , Hansaem Park
Abstract: A method of controlling a gas furnace comprising a gas valve for supplying a fuel gas to a manifold; a burner through which the fuel gas discharged from the manifold passes; an igniter for igniting a mixture of fuel gas passed through the burner and air; and an inducer for generating a flow in which a combustion gas generated by the burning of the mixture is discharged to an exhaust pipe via a heat exchanger, wherein the gas furnace performs a heating operation according to a heating signal or a heating stop according to a stop signal, includes the steps of: (a) receiving any one of the heating signal or the stop signal; (b) transmitting a signal to operate the inducer when the heating signal is received; (c) operating the igniter; (d) transmitting a signal to open the gas valve; (e) detecting whether the gas valve is opened or closed; (f) detecting a flow rate of the fuel gas in the manifold; and (g) displaying a normal operation of the heating operation, based on information detected in the steps (e) and (f).
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公开(公告)号：US11473812B2
公开(公告)日：2022-10-18
申请号：US16726364
申请日：2019-12-24
Applicant: LG ELECTRONICS INC.
Inventor： Doyong Ha , Yongki Jeong , Janghee Park , Jusu Kim , Hansaem Park
Abstract: A method for controlling a gas furnace that performs a heating operation by receiving a first heating signal; calculating a certain heating capacity smaller than a maximum heating capacity of the gas furnace, according to the first heating signal; and operating a heating of the gas furnace with the calculated certain heating capacity. The calculating of the certain heating capacity includes calculating the certain heating capacity according to a difference between an intake air temperature sucked into the gas furnace and a reference temperature.
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公开(公告)号：US11221159B2
公开(公告)日：2022-01-11
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 , F24F110/10
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.
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