公开(公告)号：US20210190392A1

公开(公告)日：2021-06-24

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.

公开(公告)号：US20200182487A1

公开(公告)日：2020-06-11

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.

公开(公告)号：US20240023294A1

公开(公告)日：2024-01-18

申请号：US18215365

申请日：2023-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Heejoong JANG ,  Dongkeun YANG ,  Hyoungsuk Woo ,  Jihye YI

IPC: H05K7/20 ,  H01M10/42 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  H01M10/63 ,  H01L23/473

CPC classification number: H05K7/20927 ,  H01M10/425 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  H01M10/63 ,  H01L23/473 ,  H05K7/20945 ,  H05K7/20909 ,  H01M2010/4271 ,  H02J7/0069

Abstract: An energy storage system may include a plurality of cooling plates disposed in contact with the plurality of semiconductor devices on a power conditioning system (PCS) circuit board, a cooling module including a pump for flowing a coolant, a first flow path connected to the cooling plates and the cooling module, through which a coolant discharged from the cooling module flows, and a second flow path connected to the cooling plates and the cooling module, through which a coolant discharged from the cooling plates flows. Each of the cooling plates includes an internal flow path including a first channel connected to the first flow path and a second channel connected to the first channel and the second flow path, and an area occupied by the first channel is larger than an area occupied by the second channel in a first area in contact with the semiconductor devices.

公开(公告)号：US20230178772A1

公开(公告)日：2023-06-08

申请号：US17982985

申请日：2022-11-08

Applicant: LG ELECTRONICS INC.

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

IPC: H01M8/04746 ,  H01M8/0432 ,  H01M8/04014 ,  H01M8/04029 ,  H01M8/04007 ,  H01M8/04082 ,  H01M8/04225 ,  H01M8/0612 ,  H01M8/2457

CPC classification number: H01M8/04753 ,  H01M8/04358 ,  H01M8/04335 ,  H01M8/04014 ,  H01M8/04029 ,  H01M8/04074 ,  H01M8/04201 ,  H01M8/04225 ,  H01M8/0618 ,  H01M8/2457

Abstract: A fuel cell apparatus may include a stack, a reformer configured to generate reformed gas, a burner, a water supply tank configured to store cooling water, a burner air blower configured to draw in external air and then to blow the air, a vertex tube configured to convert the air into heated air and cooled air, a three-way valve configured to supply the air from the burner air blower selectively to the vertex tube or the burner, a first heat exchanger configured to exchange heat between the air discharged from the vertex tube and the cooling water, a second heat exchanger configured to exchange heat between the air discharged from the vertex tube and the reformed gas, and a four-way valve configured to supply the heated air and the cooled air to the first and second heat exchangers.

公开(公告)号：US20230148377A1

公开(公告)日：2023-05-11

申请号：US17976074

申请日：2022-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Heejoong JANG ,  Hyoungsuk WOO

IPC: H01M8/1233 ,  H01M8/04089 ,  H01M8/2484 ,  H01M8/04701 ,  H01M8/04746

CPC classification number: H01M8/1233 ,  H01M8/04089 ,  H01M8/2484 ,  H01M8/04738 ,  H01M8/04776

Abstract: A fuel cell system may include: a reformer performing a reforming process of producing hydrogen gas from a gasified fuel; a burner supplying heat to the reformer; a stack generating electrical energy by generating an electrochemical reaction using reforming gas and air discharged from the reformer; a first supply pipe supplying external air to the burner; a second supply pipe supplying external air to the stack; a first storage tank storing a liquid fuel; a second storage tank supplying a gasified fuel to the reformer; and a fuel evaporator making a liquid fuel discharged from the first storage tank exchange heat with air flowing through the first supply pipe or air flowing through the second supply pipe, and sending a gasified gaseous fuel to the second storage tank.

公开(公告)号：US20230072408A1

公开(公告)日：2023-03-09

申请号：US17940548

申请日：2022-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Heejoong JANG ,  Hyoungsuk WOO

IPC: H01M8/04014 ,  H01M8/04089 ,  H01M8/04007 ,  H01M8/04119 ,  H01M8/0612 ,  H01M8/04746

Abstract: A fuel cell system includes: a stack generating electric power using reformed gas; a fuel processing device supplying reformed gas; a first gas passage connecting the stack and the fuel processing device, and carrying the reformed gas; a second gas passage connecting the stack and the fuel processing device and carrying an anode off gas (AOG) discharged from the stack; a buffer tank storing the AOG; a first buffer tank passage connecting the buffer tank and the second gas passage; a second buffer tank passage carrying the AOG stored in the buffer tank; a gas mixer connected to the second buffer tank passage and supplying the AOG stored in the buffer tank to the stack; and a controller controlling the gas mixer to supply the anode off gas stored in the buffer tank to the stack so as to preheat the stack or remove air in the stack.

公开(公告)号：US20210199355A1

公开(公告)日：2021-07-01

申请号：US17136201

申请日：2020-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Heejoong JANG ,  Jinwoo LEE ,  Hojong JEONG

IPC: F25B30/02 ,  F25B27/02 ,  F25B41/20 ,  F25B41/31 ,  F25B49/02

Abstract: Proposed is a gas heat-pump system including: a compressor discharging compressed refrigerant; an indoor heat exchanger causing heat exchange to occur between indoor air and the refrigerant; an outdoor heat exchanger condensing the refrigerant; a four-way valve switching a flow direction; an engine; a radiator cooling heated coolant; an exhaust gas heat exchanger causing the heat exchange to occur between the coolant passing through the radiator and exhaust gas from the engine; and a first three-way valve switching a flow direction of the coolant and controlling an amount of the flowing coolant in such a manner that the coolant passing through the radiator flows toward at least one of the exhaust gas heat exchanger and the engine.

公开(公告)号：US20210180805A1

公开(公告)日：2021-06-17

申请号：US17123549

申请日：2020-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Heejoong JANG ,  Hojong JEONG

IPC: F24F3/00 ,  F24F1/0007 ,  F24F1/32 ,  F25B29/00 ,  F25B27/00 ,  F25B30/02 ,  F25B31/00 ,  F25B40/02 ,  F25B41/20

Abstract: Proposed a gas heat-pump system including: a compressor compressing refrigerant and discharging the compressed refrigerant; an engine providing a drive force to the compressor; a radiator that cools coolant which is heated while passing through the engine; an indoor heat exchanger causing heat exchange to occur between indoor air and the refrigerant and thus cooling or heating an indoor space; an outdoor heat exchanger condensing the refrigerant; a four-way valve switching a flow direction of the refrigerant in such a manner that the refrigerant discharged from the compressor flows to the outdoor heat exchanger in a cooling operation mode and flows to the indoor heat exchanger in a heating operation mode; and a hot-water storage tank causing the heat exchange to occur between stored water and the refrigerant, and thus cooling the refrigerant in the cooling operation mode and heating the refrigerant in the heating operation mode.