公开(公告)号：US20210199292A1

公开(公告)日：2021-07-01

申请号：US17273795

申请日：2019-09-10

Applicant: LG ELECTRONICS INC.

Inventor： Doyong HA ,  Yongki JEONG ,  Janghee PARK ,  Jusu KIM ,  Hansaem PARK

IPC: F23N5/24

Abstract: The present disclosure relates to a control method of a gas furnace comprising a step for measuring an indoor temperature, a step for comparing the indoor temperature with a set temperature for heating, and a step for operating the gas furnace in weak heating with a predetermined heating capacity which is lower than a maximum heating capacity of the gas furnace, when the set temperature for heating is higher than the indoor temperature by a temperature value which is less than a predetermined temperature value, wherein the predetermined heating capacity for weak heating is maintained at a current heating capacity for weak heating, when the gas furnace operates in weak heating, and when an operating duration with the current heating capacity for weak heating is less than a first time value.

公开(公告)号：US20200208879A1

公开(公告)日：2020-07-02

申请号：US16726364

申请日：2019-12-24

Applicant: LG ELECTRONICS INC.

Inventor： Doyong HA ,  Yongki JEONG ,  Janghee PARK ,  Jusu KIM ,  Hansaem PARK

IPC: F24H9/20 ,  F24H3/08

Abstract: The present invention relates to a method of controlling a gas furnace that performs heating operation according to a heating signal formed of one of a weak heating signal and a strong heating signal. The method includes: (a) receiving the heating signal; (b) determining whether the heating signal is the weak heating signal or the strong heating signal; (c) calculating a certain weak heating capacity smaller than a maximum heating capacity of the gas furnace, when the heating signal is the weak heating signal; and (d) operating a weak heating of the gas furnace with the calculated certain weak heating capacity, wherein the step (c) includes calculating the weak heating capacity according to a difference between a temperature of air (hereinafter, an intake air temperature) sucked into the gas furnace and a reference temperature set based on the intake air temperature.

公开(公告)号：US20200072555A1

公开(公告)日：2020-03-05

申请号：US16557163

申请日：2019-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Jusu KIM ,  Janghee PARK ,  Hansaem PARK ,  Yongki JEONG ,  Doyong HA

IPC: F27D21/00 ,  F24H3/02

Abstract: The present invention relates to a method of controlling an RPM of a blower for a gas furnace that passes air to be supplied to a room around a heat exchanger of a gas furnace. The method includes: starting operation of the gas furnace; measuring an air temperature in an outlet side of the gas furnace; measuring the RPM of the blower; determining whether the air temperature falls within a reference temperature range; and adjusting the RPM of the blower such that the air temperature falls within the reference temperature range.

公开(公告)号：US20180372100A1

公开(公告)日：2018-12-27

申请号：US16016303

申请日：2018-06-22

Applicant: LG Electronics Inc.

Inventor： Hansaem PARK ,  Soojin KANG ,  Kangwook LEE ,  Hojong JEONG ,  Cheolhwan KIM

IPC: F04C18/02 ,  F04C29/02 ,  F04C29/00 ,  F25B1/04

CPC classification number: F04C18/0215 ,  F04C18/0261 ,  F04C18/0292 ,  F04C23/008 ,  F04C29/0007 ,  F04C29/02 ,  F04C29/042 ,  F04C29/12 ,  F04C2210/26 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/60 ,  F25B1/04

Abstract: A scroll compressor according to the present disclosure and an air conditioner having the scroll compressor may include a drive motor provided in an inner space of a casing; a rotation shaft coupled to the drive motor; a frame provided on a lower side of the drive motor; a first scroll provided on a lower side of the frame, one side of which is formed with a first wrap; a second scroll in which a second wrap engaged with the first wrap is formed, and the rotation shaft is eccentrically coupled to the second wrap to overlap therewith in a radial direction, a compression chamber is formed between the first scroll and the second scroll while being orbitally moved with respect to the first scroll, and the compression chamber is connected to an evaporator outlet side of the cooling cycle; and an injection unit one end of which is branched from a refrigerant pipe between the condenser and the evaporator, and the other end of which is connected to the compression chamber through the first scroll.

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.