公开(公告)号：US20210317836A1

公开(公告)日：2021-10-14

申请号：US17355516

申请日：2021-06-23

Applicant: LG Electronics Inc.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/40 ,  F04D29/58 ,  A47L5/22 ,  F04D29/44 ,  F04D29/62 ,  A47L9/22

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

公开(公告)号：US20200340713A1

公开(公告)日：2020-10-29

申请号：US16957872

申请日：2018-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Joongkeun CHOI ,  Tae Kyung KIM ,  Sung Bae SONG ,  Young Gyu JUNG

IPC: F25B1/04 ,  F02B37/18 ,  F02B39/10 ,  F02M21/04

Abstract: The present invention relates to a gas heat pump system. A gas heat pump system according to one embodiment of the present invention comprises: a compressor for compressing a refrigerant; a gas engine for driving the compressor; a mixer for mixing air and fuel to generate a mixed gas to be supplied to the gas engine; a mixed gas supply line connected between the mixer and the gas engine; and a supercharger for supercharging the mixed gas supplied to the gas engine through the mixed gas supply line, wherein the supercharger comprises a sealed housing formed by sealing the remaining parts thereof other than an inlet port and an outlet port through which the mixed gas moves into and out of the housing, and a bypass line is provided between the sealed housing and the inlet port of the supercharger so as to resupply a mixed gas in the sealed housing to the inlet port of the supercharger. Therefore, the system can prevent a safety-related accident resulting from the leakage of the mixed gas out of the supplier and can reduce the amount of fuel consumption.

公开(公告)号：US20230287892A1

公开(公告)日：2023-09-14

申请号：US18198670

申请日：2023-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/40 ,  F04D29/58 ,  A47L5/22 ,  F04D29/44 ,  F04D29/62 ,  A47L9/22

CPC classification number: F04D25/082 ,  F04D29/403 ,  F04D29/5806 ,  A47L5/22 ,  F04D29/444 ,  F04D29/624 ,  A47L9/22 ,  F04D29/26

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

公开(公告)号：US20180266426A1

公开(公告)日：2018-09-20

申请号：US15923575

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/58 ,  F04D29/40

CPC classification number: F04D25/082 ,  A47L5/22 ,  A47L9/22 ,  F04D29/26 ,  F04D29/403 ,  F04D29/444 ,  F04D29/5806 ,  F04D29/624

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.