公开(公告)号：US11668501B2

公开(公告)日：2023-06-06

申请号：US17336510

申请日：2021-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Pilhyun Yoon ,  Seongho Hong ,  Jungmin Park ,  Yejin Kim

IPC: F25B43/00 ,  F25B41/31 ,  F25B41/40 ,  F25B39/00

CPC classification number: F25B43/00 ,  F25B39/00 ,  F25B41/31 ,  F25B41/40 ,  F25B2400/23

Abstract: An air conditioner may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passed through the condenser; at least one gas-liquid separation pipe through which the refrigerant passed through the at least one expansion valve flows; a gas-liquid separator, into which the refrigerant passed through the at least one gas-liquid separation pipe is introduced, that separates and discharges the refrigerant introduced into the gas-liquid separator into gas refrigerant and liquid refrigerant; and an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator. The gas refrigerant discharged from the gas-liquid separator and the refrigerant passed through the evaporator may be provided to the compressor.

公开(公告)号：US11530848B2

公开(公告)日：2022-12-20

申请号：US17067080

申请日：2020-10-09

Applicant: LG Electronics Inc.

Inventor： Jungmin Park ,  Eunjun Cho

IPC: F25B13/00 ,  F25B41/20 ,  F25B49/02

Abstract: Provided is an air conditioner including a connection pipe connected to a refrigerant pipe disposed inside an outdoor heat exchanger that operates as a condenser during a cooling operation and as an evaporator during a heating operation, a header connected to the connection pipe, wherein a refrigerant separated from a two-phase refrigerant flowing through the refrigerant pipe flows through the header, a bypass pipe connected to the header to guide a flow of the refrigerant to a compressor, a flow rate control valve installed at the bypass pipe to control a flow velocity of the refrigerant, a subcooler configured to superheat the refrigerant flowing through the bypass pipe, and a controller configured to control an opening degree of the flow rate control valve.

公开(公告)号：US11486591B2

公开(公告)日：2022-11-01

申请号：US16963300

申请日：2019-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Minsoo Kim ,  Hyungyul Yum ,  Jiyoung Jang

IPC: F24F3/06 ,  F25B41/42 ,  F25B5/02 ,  F24F3/14 ,  F25B6/02 ,  F25B39/02

Abstract: A multi-type air conditioner is provided including an outdoor unit and a plurality of indoor units connected to the outdoor unit by a liquid pipe and a gas pipe. The plurality of indoor units includes a first indoor unit including first and second heat exchangers and first and second heat exchanger connecting pipes, and a second indoor unit. An indoor heat exchanger connecting pipe connects the first and second indoor units, and a liquid pipe connecting tube connects the first indoor unit and the liquid pipe. Opening amounts of a first indoor expansion valve, and first and second bypass expansion valves provided in the first indoor unit are opened selectively to operate the first heat exchanger as a condenser and the second heat exchanger as an evaporator to continuously drive a dehumidification mode while maintaining a room temperature within a predefined range.

公开(公告)号：US11448408B2

公开(公告)日：2022-09-20

申请号：US16962929

申请日：2019-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Yongcheol Sa ,  Jiyoung Jang

IPC: F24F3/06 ,  F24F11/70 ,  F25B5/02 ,  F25B6/02 ,  F25B49/02 ,  F25B41/20 ,  F24F110/10 ,  F24F3/14

Abstract: A multi-type air conditioner is provided that includes an outdoor unit having a liquid pipe through which a liquid refrigerant flows, and a gas pipe through which a gas refrigerant flows; a plurality of indoor units including a first indoor unit and a second indoor unit each connected to the liquid pipe and the gas pipe to circulate a refrigerant; a gas pipe connecting tube connecting the gas pipe and the plurality of indoor units so that a gas refrigerant flows therethrough; and a liquid pipe connecting tube connecting the liquid pipe and the plurality of indoor units so that a liquid refrigerant flows therethrough.

公开(公告)号：US11415374B2

公开(公告)日：2022-08-16

申请号：US16660372

申请日：2019-10-22

Applicant: LG Electronics Inc.

Inventor： Minsoo Kim ,  Jihyeong Ryu ,  Youngmin Lee ,  Eunjun Cho

IPC: F28D21/00 ,  F24H1/38 ,  F24H6/00

Abstract: A hybrid heating system is disclosed. The hybrid heating system includes a compressor that is configured to compress refrigerant. The hybrid heating system further includes a first heat exchanger that is configured to adjust a temperature of water by exchanging heat between the water and refrigerant compressed by the compressor. The hybrid heating system further includes a second heat exchanger that is configured to evaporate refrigerant by exchanging heat exchange with exterior air. The hybrid heating system further includes a first boiler heat exchanger that is configured to increase a temperature of water using heat generated by combustion. The hybrid heating system further includes a second boiler heat exchanger that is configured to exchange heat between exhaust gas discharged from the first boiler heat exchanger and refrigerant flowing into the second heat exchanger.