公开(公告)号：US10352593B2

公开(公告)日：2019-07-16

申请号：US15234015

申请日：2016-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Minhwan Choi

IPC: F25B13/00 ,  F25B43/00 ,  F25B40/04 ,  F24H4/00 ,  F25B27/02 ,  F25B41/04

Abstract: A gas heat-pump system is provided. The gas heat-pump system may include an air-conditioning system including at least one compressor, an outdoor heat exchanger, an expander, an indoor heat exchanger, and a refrigerant pipe; an engine configured to provide power for an operation of the at least one compressor, and in which a mixed fuel, in which a fuel and air are mixed, is burned; a cooling water pump which pumps a flow of cooling water that cools the engine; a cooling water pipe connected to the cooling water pump, and configured to guide the flow of the cooling water; an auxiliary heat exchanger in which heat exchange between the cooling water flowing through the cooling water pipe and a refrigerant flowing through the refrigerant pipe is performed; a hot water heat exchanger, in which heat exchange between the cooling water flowing through the cooling water pipe and a fluid supplied from a hot water supply tank is performed; and a plurality of flow switches installed at the cooling water pipe, and controlled so that the cooling water discharged from the engine is guided to the auxiliary heat exchanger or the hot water heat exchanger.

公开(公告)号：US10012419B2

公开(公告)日：2018-07-03

申请号：US14612825

申请日：2015-02-03

Applicant: LG Electronics Inc.

Inventor： Hojong Jeong ,  Song Choi ,  Minhwan Choi

IPC: F25B43/02 ,  F25B31/02 ,  F25B30/02 ,  F25B31/00 ,  F25B6/04 ,  F25B6/00 ,  F25B6/02 ,  F25B13/00 ,  F25B49/02 ,  F25B27/00

CPC classification number: F25B31/02 ,  F25B6/00 ,  F25B6/02 ,  F25B6/04 ,  F25B13/00 ,  F25B27/00 ,  F25B30/02 ,  F25B31/002 ,  F25B31/004 ,  F25B49/02 ,  F25B2313/004 ,  F25B2313/0253 ,  F25B2313/0254 ,  F25B2327/001 ,  F25B2400/0751 ,  F25B2600/2519

Abstract: Provided is a heat-pump system including a plurality of compressors, wherein the plurality of compressors includes a first compressor and a second compressor that compress refrigerant, an oil separator provided on a discharge side of the plurality of compressors to separate oil mixed with refrigerant compressed by the plurality of compressors, an oil separation pipe extended from the oil separator to allow the plurality of compressors to recover oil, and a compressor side oil balance pipe extended from the second compressor to allow the first compressor to recover oil stored in the second compressor.

公开(公告)号：US20150219372A1

公开(公告)日：2015-08-06

申请号：US14612825

申请日：2015-02-03

Applicant: LG ELECTRONICS INC.

Inventor： Hojong Jeong ,  Song Choi ,  Minhwan Choi

IPC: F25B27/00 ,  F25B31/02 ,  F25B6/04 ,  F25B43/02 ,  F25B30/02 ,  F25B31/00

CPC classification number: F25B31/02 ,  F25B6/00 ,  F25B6/02 ,  F25B6/04 ,  F25B13/00 ,  F25B27/00 ,  F25B30/02 ,  F25B31/002 ,  F25B31/004 ,  F25B49/02 ,  F25B2313/004 ,  F25B2313/0253 ,  F25B2313/0254 ,  F25B2327/001 ,  F25B2400/0751 ,  F25B2600/2519

Abstract: Provided is a heat-pump system including a plurality of compressors, wherein the plurality of compressors includes a first compressor and a second compressor that compress refrigerant, an oil separator provided on a discharge side of the plurality of compressors to separate oil mixed with refrigerant compressed by the plurality of compressors, an oil separation pipe extended from the oil separator to allow the plurality of compressors to recover oil, and a compressor side oil balance pipe extended from the second compressor to allow the first compressor to recover oil stored in the second compressor.

Abstract translation: 提供了一种包括多个压缩机的热泵系统，其中所述多个压缩机包括第一压缩机和压缩制冷剂的第二压缩机，设置在所述多个压缩机的排出侧的分离器以分离与制冷剂压缩的混合的油 通过多个压缩机，从油分离器延伸以允许多个压缩机回收油的分油管和从第二压缩机延伸的压缩机侧油平衡管，以允许第一压缩机回收储存在第二压缩机中的油 。