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公开(公告)号：US11732936B2
公开(公告)日：2023-08-22
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
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.
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公开(公告)号：US11898780B2
公开(公告)日：2024-02-13
申请号：US17172186
申请日：2021-02-10
Applicant: LG ELECTRONICS INC.
Inventor： Jungho Kang , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Heewoong Lee , Cheolmin Kim
CPC classification number: F25B39/028 , F25B41/40
Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; and a tube support with a plurality of holes for passing the heat transfer tubes through, that is placed inside the housing and supports the distribution tray. Through the present disclosure, it is possible to achieve stable heat exchange performance by placing the distribution tray horizontal and stable.
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公开(公告)号：US11781561B2
公开(公告)日：2023-10-10
申请号：US17230086
申请日：2021-04-14
Applicant: LG ELECTRONICS INC.
Inventor： Heewoong Lee , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Jungho Kang , Cheolmin Kim
CPC classification number: F04D29/444 , F04D29/4213 , F25B31/026 , F25B2400/07 , F25B2400/13
Abstract: The present disclosure relates to a compressor including: a motor having a rotating shaft; a first impeller housing forming a first inlet, through which a first refrigerant flows, and having a chamber into which a second refrigerant flows; a first impeller coupled to one end of the rotating shaft, and rotatably received in the first impeller housing; a diffuser spaced apart from an inside of the first impeller housing, and forming a first outlet; a second impeller housing having a second inlet formed therein; a second impeller coupled to the other end of the rotating shaft, and rotatably received in the second impeller housing; a volute case in which a volute is formed; and a motor housing having a connecting passage formed therein and connecting the first outlet and the second inlet.
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公开(公告)号：US11536497B2
公开(公告)日：2022-12-27
申请号：US17172256
申请日：2021-02-10
Applicant: LG ELECTRONICS INC.
Inventor： Jungho Kang , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Heewoong Lee , Cheolmin Kim
Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed apart from the bottom of the distribution tray and separates an introduced refrigerant into a vapor refrigerant and a liquid refrigerant; and a pair of support frames that are fixed to either side of the width direction of the housing, wherein the vapor-liquid separator comprises: a chamber that has an inlet port communicating with the refrigerant inlet, a vapor refrigerant exit communicating with the refrigerant outlet, and a plurality of holes formed in the bottom to distribute the liquid refrigerant to the distribution tray; and a plurality of side arms that are formed on either side of the chamber and arranged in the length direction of the chamber and supported by the support frames. Through the present disclosure, it is possible to keep the vapor-liquid separator horizontal and stable and achieve stable heat exchange performance.
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Patent Agency Ranking
公开(公告)号：US11698074B2
公开(公告)日：2023-07-11
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
CPC classification number: F04D17/122 , F04D25/02 , F25B31/026 , F05B2240/30
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.
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公开(公告)号：US11624533B2
公开(公告)日：2023-04-11
申请号：US17171260
申请日：2021-02-09
Applicant: LG ELECTRONICS INC.
Inventor： Jungho Kang , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Heewoong Lee , Cheolmin Kim
Abstract: An evaporator including a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes contained in the housing, in which chilled water for heat exchange with refrigerant inside of the housing flows; at least one distribution tray placed apart from the heat transfer tubes and having a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed above the distribution tray and separates an introduced mixed refrigerant into vapor refrigerant and liquid refrigerant and distributes the liquid refrigerant to the distribution tray; and at least one tube support with a plurality of holes for passing the heat transfer tubes through, that is placed inside of the housing and supports the distribution tray.
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公开(公告)号：US20210324860A1
公开(公告)日：2021-10-21
申请号：US17230052
申请日：2021-04-14
Applicant: LG ELECTRONICS INC.
Inventor： Uisik HWANG , Jinhee Jeong , Hyunwook Han , Jungho Kang , Heewoong Lee , Cheolmin Kim
IPC: F04D1/06 , F25B31/02 , F04D13/02 , F04D29/043 , F04D29/22 , F04D29/44 , F04D29/041 , F04D29/048
Abstract: The present disclosure relates to a compressor including: a first impeller suctioning a refrigerant in an axial direction and compressing the refrigerant in a direction forming an acute angle with the axial direction; a second impeller suctioning the refrigerant, compressed by the first impeller, in the axial direction and compressing the refrigerant in a centrifugal direction; a motor rotating the first impeller and the second impeller; and a rotating shaft coupled with the first impeller, the second impeller, and the motor, wherein the first impeller is coupled to one end in the axial direction of the rotating shaft, and the second impeller is coupled to the other end in the axial direction of the rotating shaft; and the first impeller and the second impeller suction the refrigerant in a same direction.
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公开(公告)号：US20210254873A1
公开(公告)日：2021-08-19
申请号：US17172256
申请日：2021-02-10
Applicant: LG ELECTRONICS INC.
Inventor： Jungho KANG , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Heewoong Lee , Cheolmin Kim
Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed apart from the bottom of the distribution tray and separates an introduced refrigerant into a vapor refrigerant and a liquid refrigerant; and a pair of support frames that are fixed to either side of the width direction of the housing, wherein the vapor-liquid separator comprises: a chamber that has an inlet port communicating with the refrigerant inlet, a vapor refrigerant exit communicating with the refrigerant outlet, and a plurality of holes formed in the bottom to distribute the liquid refrigerant to the distribution tray; and a plurality of side arms that are formed on either side of the chamber and arranged in the length direction of the chamber and supported by the support frames. Through the present disclosure, it is possible to keep the vapor-liquid separator horizontal and stable and achieve stable heat exchange performance.
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公开(公告)号：US20210254871A1
公开(公告)日：2021-08-19
申请号：US17171260
申请日：2021-02-09
Applicant: LG ELECTRONICS INC.
Inventor： Jungho KANG , Jinhee Jeong , Hyunwook Han , Uisik Hwang , Heewoong Lee , Cheolmin Kim
IPC: F25B39/00
Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed above the distribution tray and separates an introduced mixed refrigerant into a vapor refrigerant and a liquid refrigerant and distributes the liquid refrigerant to the distribution tray; and a tube support with a plurality of holes for passing the heat transfer tubes through, that is placed inside the housing and supports the distribution tray. Through the present disclosure, it is possible to achieve stable heat exchange performance by separating a mixed refrigerant and distributing only a liquid refrigerant and placing the distribution tray horizontal and stable.
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