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    Method of controlling gas heat-pump system
    11.
    发明授权
    Method of controlling gas heat-pump system 有权

    公开(公告)号：US11592219B2

    公开(公告)日：2023-02-28

    申请号：US17130561

    申请日：2020-12-22

    Applicant: LG ELECTRONICS INC.

    Inventor： Heejoong Jang ,  Hojong Jeong

    IPC: F25B27/00 ,  F25B30/02 ,  F25B49/02

    Abstract: Proposed is a method of controlling a gas heat-pump system, the system including an air conditioning module having a compressor and indoor and outdoor heat exchangers, and an engine module having an engine combusting mixed gas and thus generating drive power for operating the compressor, the method including: measuring factors that are temperature and humidity of outside air, an rpm of the engine, intake pressure, and an air-fuel ratio, the factors having effects on driving of the engine in an operating environment where the engine is driven; measuring a necessary ignition voltage for an ignition coil in a manner that corresponds to at least one of a plurality of the measured factors; and calculating a dwell time at which the necessary ignition voltage is output by the ignition coil.

    Cogeneration system
    12.
    发明授权
    Cogeneration system 有权

    公开(公告)号：US11384942B2

    公开(公告)日：2022-07-12

    申请号：US16707048

    申请日：2019-12-09

    Applicant: LG ELECTRONICS INC.

    Inventor： Heejoong Jang ,  Song Choi

    IPC: F24D11/00 ,  F02M26/22 ,  F02M26/09 ,  F02M26/19 ,  F02M26/34

    Abstract: A cogeneration system includes an intake pipe having one end which communicates with the outside air and having the other end which is connected to an engine; a mixer disposed in the intake pipe to supply gas into the intake pipe; and an intake compressor for compressing a mixed gas which is a mixture of the air and the gas, wherein the intake compressor includes: a motor disposed in the intake pipe; and a compressor impeller which is disposed in the intake pipe, and rotates by the motor to compress the mixed gas.

    GAS ENGINE HEAT PUMP AND METHOD OF OPERATING THE SAME
    13.
    发明申请
    GAS ENGINE HEAT PUMP AND METHOD OF OPERATING THE SAME 有权

    公开(公告)号：US20220056861A1

    公开(公告)日：2022-02-24

    申请号：US17407322

    申请日：2021-08-20

    Applicant: LG ELECTRONICS INC.

    Inventor： Heejoong Jang ,  Hojong Jeong

    IPC: F02D41/00 ,  F02D41/14 ,  F02D29/04 ,  F02M26/34 ,  F02M26/35 ,  F02M26/37

    Abstract: A gas engine heat pump and a method of operating the same are provided. According to an embodiment of the present disclosure, the gas engine heat pump includes: an engine for burning a mixture of air and fuel; an exhaust gas compressor for compressing exhaust gases coming from the engine; a buffer tank for storing the exhaust gases compressed by the exhaust gas compressor; an exhaust gas valve disposed between the buffer tank and an intake manifold of the engine; an exhaust gas spray nozzle for spraying the exhaust gases stored in the buffer tank into a cylinder of the engine; an exhaust gas sensor for acquiring information on the exhaust gases coming from the engine; and a controller, wherein the controller controls the operation of at least one of the exhaust gas valve and the exhaust gas spray nozzle, based on the information on the exhaust gases acquired by the exhaust gas sensor. Other various embodiments are possible.

    Fuel cell apparatus
    14.
    发明授权
    Fuel cell apparatus 有权

    公开(公告)号：US12294123B2

    公开(公告)日：2025-05-06

    申请号：US18070805

    申请日：2022-11-29

    Applicant: LG ELECTRONICS INC.

    Inventor： Heejoong Jang ,  Dongkeun Yang ,  Hyoungsuk Woo ,  Hyeri Park

    IPC: H01M8/04119 ,  H01M8/0438 ,  H01M8/04828 ,  H01M8/04007 ,  H01M8/04492

    Abstract: A fuel cell apparatus may include a stack, a stack air blower configured to supply external air to the stack, a humidifier configured to extract moisture contained in exhaust air and to supply the extracted moisture to external air supplied to the stack, a first bypass channel configured to allow exhaust air to bypass the humidifier, a first three-way valve controlled to adjust the amount of exhaust air that bypasses the humidifier, and a humidity sensor configured to sense the humidity of external air. The fuel cell apparatus may also include a second bypass channel configured to allow external air to bypass the humidifier, a second three-way valve controlled to adjust the amount of external air that bypasses the humidifier, and a controller configured to control the first three-way valve and the second three-way valve depending on the sensed humidity value of the external air.

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