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Patent Agency Ranking
公开(公告)号：US11578605B2
公开(公告)日：2023-02-14
申请号：US17171371
申请日：2021-02-09
Applicant: LG ELECTRONICS INC.
Inventor： Hanyoung Park , Yoonjei Hwang , Junhyuk Jang
Abstract: The present disclosure relates to an impeller and a method of manufacturing the same. The impeller includes: a hub in which a plurality of spiral first slots are formed; a shroud which is positioned opposite the hub, and has a plurality of spiral second slots formed therein; and a plurality of blades which is coupled to the hub and the shroud, and have an upper protrusion formed on one side and a lower protrusion formed on the other side; and wherein the upper protrusion is inserted into and coupled to a second hole formed in the second slot, and the lower protrusion is inserted into and coupled to a first hole formed in the first slot.
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公开(公告)号：US11644042B2
公开(公告)日：2023-05-09
申请号：US17173586
申请日：2021-02-11
Applicant: LG ELECTRONICS INC.
Inventor： Hanyoung Park , Yoonjei Hwang
IPC: F04D27/02 , F04D29/041 , F04D29/048 , F04D27/00 , F04D17/12
CPC classification number: F04D27/02 , F04D17/12 , F04D27/001 , F04D27/0261 , F04D29/048 , F04D29/0413 , F05D2270/334
Abstract: A compressor that vibrates a rotary shaft or changes an operating frequency of a motor, in response to a vibration frequency of a discharge passage falling outside of a normal range. The compressor may include one or more impeller configured to draw in and compress refrigerant; a motor configured to rotate the one or more impeller; a rotary shaft, to which the one or more impeller and the motor are coupled; at least two thrust bearings that limit vibration of the rotary shaft; a vibration measuring sensor configured to measure a vibration frequency of a discharge passage; and a controller configured to control the at least two thrust bearings based on the vibration frequency. Upon determining that the vibration frequency falls outside of a normal vibration frequency range, the controller controls the at least two thrust bearings to vibrate the rotary shaft a predetermined number of times.
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公开(公告)号：US09702622B2
公开(公告)日：2017-07-11
申请号：US14621178
申请日：2015-02-12
Applicant: LG ELECTRONICS INC.
Inventor： Hanyoung Park , Yoonjei Hwang , Horim Lee
CPC classification number: F25D31/002 , F24F3/06 , F25B41/00 , F25B49/02 , F25D17/02
Abstract: A turbo chiller and a chiller system are disclosed. The turbo chiller includes a compressor including an impeller for compressing a refrigerant and a motor for driving the impeller, a condenser configured to perform heat exchange between condensed water and the refrigerant introduced from the compressor, an evaporator configured to perform heat exchange between chilled water and the refrigerant discharged from the condenser, and an expansion valve disposed between the condenser and the evaporator. The compressor, the evaporator and the condenser are arranged to be stacked in a predetermined direction.
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公开(公告)号：US09587867B2
公开(公告)日：2017-03-07
申请号：US15045896
申请日：2016-02-17
Applicant: LG Electronics Inc.
Inventor： Horim Lee , Seulki On , Jinhyuk Yu , Yoonjei Hwang , Hanyoung Park
CPC classification number: F25B49/02 , F24F13/04 , F25B1/053 , F25B1/10 , F25B25/005 , F25B31/004 , F25B31/008 , F25B43/003 , F25B2339/0242 , F25B2339/047 , F25B2400/04 , F25B2400/0411 , F25B2400/06 , F25B2400/13 , F25B2400/23 , F25B2700/13 , F25B2700/151 , F25B2700/21171
Abstract: A chiller system and a control method thereof includes a plurality of chiller modules in which a refrigeration cycle is performed to supply cold water, a main control device generating an operation signal to simultaneously or successively operate the plurality of chiller modules, a module control device provided in each of the plurality of chiller modules to control an operation of each of the plurality of chiller modules on the basis of the operation signal of the main control device, and a starting device communicably connected to the module control device to selectively apply power into the plurality of chiller modules.
Abstract translation: 冷冻机系统及其控制方法包括多个冷水机组，其中进行制冷循环以供给冷水;主控制装置，其生成操作信号以同时或连续地操作多个冷却器模块;模块控制装置， 在所述多个冷却器模块的每一个中，基于所述主控制装置的操作信号来控制所述多个冷却器模块中的每一个的操作，以及可通信地连接到所述模块控制装置的起动装置，以选择性地将动力输入到 多个冷却器模块。
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公开(公告)号：US09410728B2
公开(公告)日：2016-08-09
申请号：US14094943
申请日：2013-12-03
Applicant: LG ELECTRONICS INC.
Inventor： Horim Lee , Seulki On , Jinhyuk Yu , Yoonjei Hwang , Hanyoung Park
CPC classification number: F25B49/02 , F24F13/04 , F25B1/053 , F25B1/10 , F25B25/005 , F25B31/004 , F25B31/008 , F25B43/003 , F25B2339/0242 , F25B2339/047 , F25B2400/04 , F25B2400/0411 , F25B2400/06 , F25B2400/13 , F25B2400/23 , F25B2700/13 , F25B2700/151 , F25B2700/21171
Abstract: A chiller system and a control method thereof includes a plurality of chiller modules in which a refrigeration cycle is performed to supply cold water, a main control device generating an operation signal to simultaneously or successively operate the plurality of chiller modules, a module control device provided in each of the plurality of chiller modules to control an operation of each of the plurality of chiller modules on the basis of the operation signal of the main control device, and a starting device communicably connected to the module control device to selectively apply power into the plurality of chiller modules.
Abstract translation: 冷冻机系统及其控制方法包括多个冷水机组，其中进行制冷循环以供给冷水;主控制装置，其生成操作信号以同时或连续地操作多个冷却器模块;模块控制装置， 在所述多个冷却器模块的每一个中，基于所述主控制装置的操作信号来控制所述多个冷却器模块中的每一个的操作，以及可通信地连接到所述模块控制装置的起动装置，以选择性地将动力输入到 多个冷却器模块。
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