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：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：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.