公开(公告)号：US10823130B2

公开(公告)日：2020-11-03

申请号：US16478215

申请日：2018-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Jihoon Jun ,  Kwanho Yum ,  Song Choi

IPC: F02P3/045 ,  F02P3/08 ,  F25B30/02 ,  F25B49/02

Abstract: The present invention relates to a gas heat pump and a control method therefor and, according to the present invention, the method for controlling a gas heat pump, which comprises an ignition plug and a gas engine having an engine combustion unit including a plurality of combustion spaces, may include: a target setting step of setting a target ignition energy amount on the basis of a refrigerant load amount determined according to a driving condition of the gas heat pump; an ignition step of igniting fuel injected into the combustion spaces; a comparison step of comparing an output energy amount emitted in the ignition step with a target ignition energy amount set in the target setting step; and a step of changing an energy amount required to ignite the fuel when the output energy amount and the target ignition energy amount do not coincide in the comparison step.

公开(公告)号：US10041706B2

公开(公告)日：2018-08-07

申请号：US14990570

申请日：2016-01-07

Applicant: LG Electronics Inc.

Inventor： Kwangho Shin ,  Hojong Jeong ,  Minho Chung ,  Song Choi

IPC: F25B13/00 ,  F25B7/00 ,  F25B30/02 ,  F25D21/06 ,  F25B27/02 ,  F25B47/02 ,  F25B49/02

CPC classification number: F25B13/00 ,  F25B7/00 ,  F25B27/02 ,  F25B30/02 ,  F25B47/02 ,  F25B49/02 ,  F25B2400/05 ,  F25B2400/06 ,  F25D21/06 ,  Y02A30/274

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device; an electric heat pump (EHP) outdoor device connected to the at least one indoor device, configured to drive a first compressor using electric power, and having a first outdoor heat exchanger for heat exchange of a refrigerant; a gas heat pump (GHP) outdoor device connected to the at least one indoor device, and having an engine configured to drive a second compressor using a burned gas, a second outdoor heat exchanger for heat exchange of the refrigerant, and a waste heat exchanger configured to exchange heat with the refrigerant using waste heat of the engine; and a low pressure refrigerant common pipe configured to connect the first outdoor heat exchanger with the second outdoor heat exchanger and to supply a low pressure refrigerant of the GHP outdoor device to the EHP outdoor device.

公开(公告)号：US09816734B2

公开(公告)日：2017-11-14

申请号：US14993796

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Hojong Jeong ,  Kwangho Shin ,  Minho Chung ,  Song Choi

IPC: F25B1/00 ,  F25B13/00 ,  F25B49/02

CPC classification number: F25B13/00 ,  F25B49/022 ,  F25B2313/004 ,  F25B2313/005 ,  F25B2313/0253 ,  F25B2400/075 ,  F25B2600/021 ,  F25B2600/2501 ,  Y02B30/741

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected to the at least one indoor device and having an EHP compressor driven using an applied current, and a gas heat pump (GHP) outdoor device connected to the at least one indoor device having an engine driven using a combustion of gas and a GHP compressor driven by receiving a driving force from the engine. The EHP compressor may include an inverter that controls a frequency of the current applied to the EHP compressor. The GHP compressor may include a first compressor that receives a driving force from the engine to compress a refrigerant; and a second compressor that is connected to the first compressor in parallel and receives the driving force from the engine to compress the refrigerant.

公开(公告)号：US20150267928A1

公开(公告)日：2015-09-24

申请号：US14435769

申请日：2013-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Song Choi ,  Baikyoung Chung ,  Hojong Jeong ,  Wooho Cha

IPC: F24F5/00

CPC classification number: F24F5/001 ,  F25B13/00 ,  F25B27/02 ,  F25B2313/02742 ,  F25B2400/05 ,  F25B2400/075 ,  Y02A30/274 ,  Y02P80/152

Abstract: An air conditioner is disclosed. The air conditioner includes an indoor unit, a first outdoor unit including a first outdoor heat exchanger and a first compressor to be driven by electricity, a second outdoor unit including a second outdoor heat exchanger and a second compressor to be driven by an engine, a cooling water line, through which cooling water to cool the engine flows, and at least one waste heat-recovering heat exchanger for exchanging heat between refrigerant to be introduced into at least one of the first outdoor heat exchanger and the second outdoor heat exchanger and the cooling water flowing through the cooling water line. By provision of the waste heat-recovering heat exchanger, which heat-exchanges hot cooling water with refrigerant flowing through the first and second outdoor heat exchangers, frost formed on the first and second outdoor units during low-temperature heating is removed. It is possible to cope with a wide range of heating loads while achieving high efficiency, using both the electric heat pump (EHP) system and the gas engine-driven heat pump (GHP) system.

Abstract translation: 公开了一种空调机。 空调机包括室内机，第一室外机组，第一室外热交换器和被电力驱动的第一压缩机，第二室外机，包括第二室外热交换器和第二压缩机，由发动机驱动， 通过冷却水冷却发动机的冷却水流，以及至少一个用于在被引入第一室外热交换器和第二室外热交换器中的至少一个的制冷剂之间进行热交换的废热回收热交换器， 冷却水流经冷却水管线。 通过设置与流过第一和第二室外热交换器的制冷剂热交换热水的废热回收热交换器，除去在低温加热期间在第一室外单元和第二室外单元上形成的霜。 使用电热泵（EHP）系统和燃气发动机驱动热泵（GHP）系统，可以应对各种各样的加热负载，同时实现高效率。