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    DEVICE HAVING REFRIGERANT CYCLE
    1.
    发明申请
    DEVICE HAVING REFRIGERANT CYCLE 有权

    公开(公告)号：US20220404076A1

    公开(公告)日：2022-12-22

    申请号：US17836133

    申请日：2022-06-09

    Applicant: LG ELECTRONICS INC

    Inventor： Eunjun CHO ,  Minsoo KIM ,  Hojin SEO ,  Dongkeun YANG

    IPC: F25B43/00 ,  F25B41/40

    Abstract: A device is provided that may include a compressor configured to compress a refrigerant, a condenser configured to condense the compressed refrigerant, an expander configured to expand the refrigerant condensed by the condenser, an evaporator configured to evaporate the refrigerant expanded by the expander, a separation mechanism connected to an outlet pipe of the evaporator to separate liquid refrigerant and gaseous refrigerant discharged from the evaporator, a bypass pipe to guide the gaseous refrigerant separated from the liquid refrigerant to the compressor, a first pipe connected to the separation mechanism and through which the liquid refrigerant discharged from the separation mechanism flows, an accumulator connected to the first pipe to separate the gaseous refrigerant, which is not separated from the liquid refrigerant by the separation mechanism, from the liquid refrigerant and discharge the separated gaseous refrigerant, and a second pipe configured to guide the gaseous refrigerant discharged from the accumulator to the compressor.

    FUEL CELL AND METHOD FOR OPERATING THE SAME
    2.
    发明申请
    FUEL CELL AND METHOD FOR OPERATING THE SAME 审中-公开

    公开(公告)号：US20170346115A1

    公开(公告)日：2017-11-30

    申请号：US15607131

    申请日：2017-05-26

    Applicant: LG ELECTRONICS INC.

    Inventor： Choonjae RYU ,  Dongkeun YANG ,  Hyoungsuk WOO

    IPC: H01M8/04746 ,  H01M8/04186 ,  H01M8/04082

    Abstract: A fuel cell has a stack that includes a fuel electrode and air electrode on opposite sides of an electrolyte membrane. The fuel electrode includes first and second fuel ports communicative via a fuel flow path, and the air electrode includes first and second air ports communicative via an air flow path. The fuel cell also includes first and second fuel feeders communicative with the first and second fuel ports, and first and second air feeders communicative with the first and second air ports. The fuel cell also includes a fuel switching unit between the first and second fuel feeders that switches a fuel supply direction between the first and second fuel feeders. The fuel cell further includes an air switching unit between the first and second air feeders that switches an air supply direction between the first and second air feeders.

    OIL SEPARATOR
    3.
    发明申请
    OIL SEPARATOR 有权

    公开(公告)号：US20250067485A1

    公开(公告)日：2025-02-27

    申请号：US18811217

    申请日：2024-08-21

    Applicant: LG Electronics Inc.

    Inventor： Eunjun CHO ,  Junseong PARK ,  Kakjoong KIM ,  Hyungjoon KIM ,  Dongkeun YANG

    IPC: F25B43/02 ,  F25B41/40

    Abstract: The present disclosure relates to an oil separator. The oil separator according to the present disclosure includes: a body having a space therein; a refrigerant discharge pipe connected to one side of the body, and discharging refrigerant which exists in the space; a supply pipe connected to the other side of the body, and sending refrigerant including ejected from a compressor to the space; and an oil discharge pipe connected to another side of the body, and discharging oil which exists in the space. The supply pipe includes a first inner supply pipe extended from a circumferential surface of the body to an inside having the space, and a second inner supply pipe disposed in the space, disposed to be spaced apart from the circumferential surface of the body, and having a form bent in a central direction of the body.

    FUEL CELL STACK
    4.
    发明申请
    FUEL CELL STACK 有权

    公开(公告)号：US20210057773A1

    公开(公告)日：2021-02-25

    申请号：US16999503

    申请日：2020-08-21

    Applicant: LG Electronics Inc.

    Inventor： Hyoungsuk WOO ,  Dongkeun YANG ,  Jaeyoung WON

    IPC: H01M8/2483 ,  H01M8/0267

    Abstract: A fuel cell stack includes a first stack including a plurality of first fuel cells stacked on each other, and a second stack including a plurality of second fuel cells stacked on each other and disposed on one side of the first stack. Each of the first stack and the second stack includes a fuel inlet hole, through which fuel to be supplied to anodes of the respective first and second fuel cells is introduced, a fuel discharge hole, through which the fuel passing through the anodes is discharged, an air inlet hole, through which air to be supplied to cathodes of the respective first and second fuel cells is introduced, and an air discharge hole, through which the air passing through the cathodes is discharged. The fuel cell stack divided into the two stacks increases a charging ratio of hydrogen at the anodes of the respective stacks.

    FUEL CELL EXHAUST DEVICE
    5.
    发明申请
    FUEL CELL EXHAUST DEVICE 有权

    公开(公告)号：US20210057768A1

    公开(公告)日：2021-02-25

    申请号：US16999452

    申请日：2020-08-21

    Applicant: LG Electronics Inc.

    Inventor： Hyoungsuk WOO ,  Dongkeun YANG ,  Woojin CHO

    IPC: H01M8/04119 ,  H01M8/0612 ,  H01M8/04492 ,  H01M8/04746

    Abstract: A fuel cell exhaust device includes a pipe having one side open and the other side closed, a water tank having one side open and the other side closed, a reformer exhaust pipe communicating with the pipe between one side and the other side of the pipe, a stack exhaust pipe which is spaced apart from the reformer exhaust pipe and communicates with the pipe between one side and the other side of the pipe, a drain pipe positioned adjacent to the reformer exhaust pipe or the stack exhaust pipe and disposed on an outer circumferential surface of the water tank to communicate with the inside of the water tank, and a hole defined on the closed other side of the pipe and spaced apart from the closed other side of the water tank.

    FUEL CELL SYSTEM
    6.
    发明公开
    FUEL CELL SYSTEM 审中-公开

    公开(公告)号：US20230155148A1

    公开(公告)日：2023-05-18

    申请号：US17983020

    申请日：2022-11-08

    Applicant: LG ELECTRONICS INC.

    Inventor： Heejoong JANG ,  Dongkeun YANG ,  Hyoungsuk WOO ,  Jihoon JUN

    IPC: H01M8/04746 ,  H01M8/0612 ,  H01M8/04029 ,  H01M8/04007 ,  H01M8/0432

    CPC classification number: H01M8/04768 ,  H01M8/0618 ,  H01M8/04029 ,  H01M8/04067 ,  H01M8/04358

    Abstract: A fuel cell system may include: a stack for generating power through an electrochemical reaction of reforming gas and air; a fuel processing apparatus for generating the reforming gas supplied to the stack; a water supply tank for storing the water; a heat recovery tank for storing hot water; a first heat exchanger disposed in the fuel processing apparatus, and exchanging heat between cooling water and exhaust gas discharged from the fuel processing apparatus; and a heat supply valve for supplying the cooling water to the water supply tank or the heat recovery tank so as to heat the water stored in the water supply tank or the hot water stored in the heat recovery tank.

    EJECTOR AND REFRIGERATION CYCLE APPARATUS INCLUDING EJECTOR
    7.
    发明申请
    EJECTOR AND REFRIGERATION CYCLE APPARATUS INCLUDING EJECTOR 有权

    公开(公告)号：US20170356683A1

    公开(公告)日：2017-12-14

    申请号：US15442130

    申请日：2017-02-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Hansaem PARK ,  Soojin KANG ,  Dongkeun YANG

    IPC: F25B41/00

    Abstract: An ejector and a refrigeration cycle apparatus having an ejector are provided. The ejector may include an ejector body having a suction portion into which a high pressure refrigerant and a low pressure refrigerant may be suctioned, and having a mixing portion provided at one side of the suction portion and configured to mix the high pressure refrigerant with the low pressure refrigerant; a nozzle movably provided in the suction portion, and configured to inject the high pressure refrigerant; a needle inserted into an end of the nozzle and configured to control a flow sectional area of the nozzle; and a nozzle drive configured to drive the nozzle so as to be relatively movable with respect to the mixing portion and the needle. As a flow sectional area of a high pressure refrigerant passage and a flow sectional area of a low pressure refrigerant passage are controlled, a driving efficiency of the ejector may be enhanced.

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