公开(公告)号：US10047991B2

公开(公告)日：2018-08-14

申请号：US14719812

申请日：2015-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Kidong Kim ,  Jongchul Ha ,  Jiwon Chang ,  Hyunjong Kim

IPC: F25B1/00 ,  F25B49/00 ,  F25B49/02 ,  F25D21/12 ,  F25B6/02 ,  F25B30/02 ,  F25B7/00 ,  F25B13/00 ,  F25B47/02

Abstract: A heat pump includes a first cycle device and a second cycle device. The first cycle device is connected such that, in a heating operation, a first refrigerant is circulated in an order of a first compressor, a 4-way valve, a first heat exchanger, a second heat exchanger, a first expansion mechanism, a third heat exchanger, the 4-way valve, and the first compressor, and such that, in a cooling operation, the first refrigerant is circulated in an order of the first compressor, the 4-way valve, the third heat exchanger, the first expansion mechanism, the second heat exchanger, the first heat exchanger, the 4-way valve, and the first compressor. The second cycle device is connected such that a second refrigerant is circulated in an order of a second compressor, a fourth heat exchanger, a second expansion mechanism, the second heat exchanger, and the second compressor.

公开(公告)号：US20250035351A1

公开(公告)日：2025-01-30

申请号：US18779238

申请日：2024-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Seungtaek OH ,  Doyong Ha ,  Jeongseob Shin ,  Sangil Park ,  Soojin Kang ,  Hyunjong Kim ,  Kyongmin Kwon

IPC: F25B41/20 ,  F25B30/02

Abstract: A heat supplier may include a compressor that compresses a refrigerant; a first heat exchanger that exchanges heat between air and the refrigerant; a second heat exchanger that exchanges heat between a fluid and the refrigerant; a switching valve that directs the refrigerant discharged from the compressor into the first heat exchanger or the second heat exchanger; a first liquid pipe that connects the first heat exchanger and the second heat exchanger; a second liquid pipe connected in parallel to the first liquid pipe so as to connect the first heat exchanger and the second heat exchanger; a first expansion valve disposed at the first liquid pipe and configured to expand refrigerant flowing therethrough; and a second expansion valve disposed at the second liquid pipe and configured to expand refrigerant flowing therethrough. A size of an aperture of the second expansion valve may be greater than a size of an aperture of the first expansion valve, enabling a flow rate of refrigerant to be adjusted according to an operation mode.

公开(公告)号：US20210310695A1

公开(公告)日：2021-10-07

申请号：US17223269

申请日：2021-04-06

Applicant: LG ELECTRONICS INC

Inventor： Minsu PARK ,  Hyunjong Kim ,  Dongwon Sung ,  Yeol Lee ,  Kyungmok Yeo

IPC: F24H4/04 ,  F24H9/00 ,  F24H9/20 ,  G05D9/12

Abstract: A heater tank for a heat pump system having a structure in which a capacity of a storage space may be changed as hot fluid is discharged. For example, the heater tank may include a main body having an internal space and one open side, and a capacity changing member that forms a storage space, in which a hot fluid, such as water may be stored, by closing the one open side in the internal space of the main body, and being moved so that a capacity of the storage space may be changed as the hot fluid is discharged.

公开(公告)号：US10514192B2

公开(公告)日：2019-12-24

申请号：US14547209

申请日：2014-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Jongchul Ha ,  Jiwon Chang ,  Yeol Lee ,  Hyunjong Kim

IPC: F24F3/14 ,  F25B49/02 ,  F24F3/153 ,  F24F13/22 ,  F24F140/30

Abstract: A dehumidifier includes a body having an inlet for suctioning air and an outlet for discharging air; a compressor, disposed at the body, for compressing a refrigerant; a condenser for condensing the refrigerant compressed from the compressor; an expander for expanding the refrigerant condensed from the condenser; an evaporator, disposed at upstream of the condenser according to the flow direction of air, for evaporating the refrigerant expanded from the expander; a condensate water tank to store condensate water condensed from the evaporator; and a condensate water pipe, connected to the condensate water tank, for flowing the condensate water to be heat-exchanged with the refrigerant compressed from the compressor.