公开(公告)号：US20170227265A1

公开(公告)日：2017-08-10

申请号：US15256858

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Jungho KANG ,  Hyunwook HAN

IPC: F25B39/00 ,  F25B41/04

CPC classification number: F25B39/00 ,  F25B39/04 ,  F25B41/04 ,  F25B2339/047 ,  F25B2600/2503

Abstract: A chiller system includes a compressor that compress refrigerant, a condenser that exchanges heat between the refrigerant and a cooling water discharged from the compressor, and a flow adjusting device that is provided to a refrigerant outlet side of the condenser and adjusts refrigerant amount in the inside of the condenser, the flow adjusting device includes, a main body portion that is communicated with a tubing of the outlet side of the condenser, a refrigerant supply tube that extends to the main body portion from the condenser and supplies the refrigerant in the inside of the condenser to the inside of the main body portion, and a flow hole that is formed on the main body portion and is selectively opened and closed according to refrigerant pressure which is input through the refrigerant supply tube.

公开(公告)号：US20220154982A1

公开(公告)日：2022-05-19

申请号：US17528626

申请日：2021-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Jungho KANG ,  Jinhee JEONG ,  Hyunwook HAN ,  Uisik HWANG ,  Heewoong LEE ,  Chulmin KIM

IPC: F25B39/04 ,  F25B1/00

Abstract: A condenser and a turbochiller including a condenser are provided. The turbochiller may include a compressor including an impeller that compresses refrigerant and a motor that drives the impeller; a condenser for heat exchange between the refrigerant introduced from the compressor and cooling water; an evaporator for heat exchange between the refrigerant discharged from the condenser and cold water; an expansion valve provided between the condenser and the evaporator; and a collector configured to collect noncondensable gas inside of the condenser. Accordingly, it is possible to efficiently collect noncondensable gas inside of a condenser of a turbochiller.

公开(公告)号：US20180023938A1

公开(公告)日：2018-01-25

申请号：US15615064

申请日：2017-06-06

Applicant: LG ELECTRONICS INC. ,  THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY

Inventor： Namsoo LEE ,  Myounggyu NOH ,  Soyoon KIM ,  Seongmin JANG ,  Jinhee JEONG ,  Seongki BAEK ,  Sunggyu NAM

IPC: G01B5/14 ,  F16C32/04 ,  G01M13/04

CPC classification number: G01B5/14 ,  F16C32/0446 ,  F16C32/0451 ,  F16C2362/52 ,  G01B5/146 ,  G01M13/04

Abstract: A method of measuring a center error between bearings includes disposing both sides of a rotation shaft on inner circumferential surfaces of a magnetic bearing and a backup bearing, applying current to the magnetic bearing to produce movement of the rotation shaft, determining a contact point between the rotation shaft and the backup bearing according to movement of the rotation shaft, determining a final target value using the contact point and predetermined position information of the magnetic bearing, determining a magnetic center of the magnetic bearing through the final target value, comparing the magnetic center of the magnetic bearing and a mechanical center of the backup bearing to determine a center error, and aligning the magnetic center of the magnetic bearing and the mechanical center of the backup bearing based on the determined center error.

公开(公告)号：US20170276616A1

公开(公告)日：2017-09-28

申请号：US15470108

申请日：2017-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Kiwook LEE ,  Chanmyung PARK ,  Namsoo LEE ,  Jinhee JEONG

IPC: G01N21/954 ,  F25B31/02 ,  F25B39/00 ,  G01M15/14 ,  F25B49/02

CPC classification number: G01N21/954 ,  F25B31/026 ,  F25B39/00 ,  F25B39/02 ,  F25B39/04 ,  F25B45/00 ,  F25B49/02 ,  F25B2339/0242 ,  F25B2339/046 ,  F25B2345/001 ,  F25B2345/006 ,  F25B2500/06 ,  F25B2500/222 ,  G01M15/14 ,  G01N2021/9546

Abstract: Disclosed is a detection device for detecting a turbomachine including an opening, the detection device comprises: a flange configured to close the opening; and an endoscope assembly including an endoscope body, a detector extending from the endoscope assembly and inserted into an internal space of the turbomachine through the flange and an extension part connecting the endoscope body and the detector.

公开(公告)号：US20190277300A1

公开(公告)日：2019-09-12

申请号：US16329180

申请日：2016-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Kiwook LEE ,  Seongmin JANG ,  Jinhee JEONG ,  Chanmyung PARK ,  Solji RYU

IPC: F04D29/058 ,  F04D29/056 ,  F25B31/02

Abstract: The present invention relates to a compressor and a chiller system including the compressor, the compressor comprising: one or more impellers for suctioning a refrigerant in an axial direction and compressing the same in a centrifugal direction; a rotary shaft formed so as to rotate the impeller; a collar coupled to the rotary shaft so as to extend outward in the radial direction of the rotary shaft; a thrust magnetic bearing formed so as to support the collar by means of a magnetic field, thereby preventing axial movement of the rotary shaft; and a mechanical backup bearing formed so as to prevent axial movement of the rotary shaft, wherein the backup bearing is disposed so as to overlap a portion of the thrust magnetic bearing in the radial direction of the rotary shaft.

公开(公告)号：US20170205123A1

公开(公告)日：2017-07-20

申请号：US15256894

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyunuk CHO ,  Jinhee JEONG ,  Sangchul NAM ,  Wansoo LEE ,  Heungju LEE ,  Yongsun CHO

IPC: F25B15/06

CPC classification number: F25B15/06 ,  F25B15/008 ,  Y02A30/277 ,  Y02B30/62

Abstract: An absorption refrigeration machine may include a first regenerator for primarily regenerating an absorbing liquid absorbing a refrigerant; a second regenerator for secondarily regenerating the absorbing liquid primarily regenerated from the first regenerator; an auxiliary absorber provided with the second regenerator, to allow an auxiliary absorbing liquid to absorb the refrigerant; and an auxiliary regenerator for regenerating the auxiliary absorbing liquid carrying the refrigerant in the auxiliary absorber.

公开(公告)号：US20210348615A1

公开(公告)日：2021-11-11

申请号：US16921081

申请日：2020-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Hyunwook HAN ,  Uisik HWANG ,  Jungho KANG ,  Heewoong LEE

IPC: F04D17/12 ,  F04D25/02 ,  F25B31/02

Abstract: A turbo compressor includes a housing with a refrigerant suction hole, through which a refrigerant is introduced, at a front portion thereof, and a motor case defining an accommodation space. The accommodation space includes a rotation shaft extending in a front-rear direction and a motor that is configured to rotate the rotation shaft. A first impeller is coupled to one end of the rotation shaft and a second impeller is coupled to the other end of the rotation shaft. The first impeller is configured to primarily compress the refrigerant introduced into the refrigerant suction hole. A connection passage, that surrounds the motor case extends backward from an outlet of the first impeller. The second impeller is configured to secondarily compress the refrigerant introduced through the connection passage.

公开(公告)号：US20160377086A1

公开(公告)日：2016-12-29

申请号：US15052954

申请日：2016-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Namsoo LEE ,  Jinhee JEONG ,  Kiwook LEE ,  Soyoon KIM

IPC: F04D27/00 ,  F04D29/28 ,  F04D29/053 ,  F04D17/12 ,  F04D29/058

CPC classification number: F04D27/001 ,  F04D17/12 ,  F04D29/058 ,  F05D2270/821 ,  F25B1/04 ,  F25B2339/047

Abstract: A compressor and a chiller system including a compressor are provided. The compressor may include one or more impellers that draws a refrigerant in an axial direction and compresses the refrigerant in a radial direction, a rotating shaft that rotates the one or more impellers, and at least one displacement sensor that detects a displacement of the rotating shaft. The displacement sensor may include a flexible circuit board and coils provided on both sides of the flexible circuit board. The flexible circuit board may include a plurality of boards which may be connected to each other by one or more connectors.

Abstract translation: 提供了包括压缩机的压缩机和冷却器系统。 压缩机可以包括一个或多个在轴向上拉制冷剂并沿径向压缩制冷剂的叶轮，使一个或多个叶轮旋转的旋转轴以及检测旋转轴的位移的至少一个位移传感器 。 位移传感器可以包括柔性电路板和设置在柔性电路板两侧的线圈。 柔性电路板可以包括可以通过一个或多个连接器彼此连接的多个板。