公开(公告)号：US09845797B2

公开(公告)日：2017-12-19

申请号：US14424061

申请日：2013-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Sunghyun Ki ,  Kiwon Noh ,  Kwangwoon Ahn ,  Kyeongbae Park ,  Simoon Jeon ,  Joonsung Park

IPC: F04B35/04 ,  F04B49/20 ,  F04B49/06 ,  F04B53/20 ,  F04B53/00 ,  F04B39/02 ,  F04B39/16 ,  F04B17/03

CPC classification number: F04B35/045 ,  F04B17/03 ,  F04B35/04 ,  F04B39/0292 ,  F04B39/16 ,  F04B49/065 ,  F04B49/20 ,  F04B53/004 ,  F04B53/20

Abstract: The present disclosure relates to reciprocating compressor. The present invention can prevent friction loss or abrasion between a cylinder and a piston, which is caused when a hydraulic bearing is blocked with a foreign substance, by preventing the foreign substance mixed in refrigerant gas from flowing into the hydraulic bearing, and can improve compressor performance by preventing a specific volume in a compression space from increasing when high-temperature refrigerant gas discharged in the compression space is cooled, such that vibration noise of the compressor can be reduced since a gas guiding part offsets vibration and the noise generated when a refrigerant is discharged in the compression space. Furthermore, the number of vibrations of a mover is increased and a driving operation for removing foreign substances is carried out to increase the number of vibrations of a cylinder such that any foreign substance stuck in a gas hole can be cleaned, thereby increasing performance and reliability of the compressor.

公开(公告)号：US11937680B2

公开(公告)日：2024-03-26

申请号：US17098607

申请日：2020-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyunjoo Oh ,  Kwangwoon Ahn

IPC: A45D20/12

CPC classification number: A45D20/122

Abstract: A concentrator and a hair dryer including a concentrator are provided. The concentrator may include an outer case forming an exterior of the concentrator and provided with first and second flow paths thereinside to enable gas discharged from a gas discharge of the hair dryer to flow and a flow path selector a position of which is variable within the outer case, the first flow path being provided between the flow path selector and the outer case, the second flow path being provided within the flow path selector. The concentrator may be configured to externally discharge the gas discharged from the gas discharge along either the first flow path or the second flow path depending on the position of the flow path selector. Accordingly, a user may select the first flow path or the second flow path for convenience while using a single concentrator.

公开(公告)号：US11571056B2

公开(公告)日：2023-02-07

申请号：US17084668

申请日：2020-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyungseok Min ,  Goondong Park ,  Jounyoung Kim ,  Kwangwoon Ahn ,  Hyunjoo Oh

IPC: A45D20/00

Abstract: A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case and a handle frame. The handle frame may include a flow stabilizer located upstream of the fan. A fluid flowing in through an inlet may pass through the flow stabilizer to flow to the fan. A sound absorbing space to reduce noise may be formed between an inner circumferential surface of the handle case and the flow stabilizer.

公开(公告)号：US11540609B2

公开(公告)日：2023-01-03

申请号：US17098864

申请日：2020-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyunjoo Oh ,  Kwangwoon Ahn

IPC: A45D20/12

Abstract: A concentrator and hair dryer including a concentrator are provided. The concentrator may include a head having at least one flow path provided therein to enable gas discharged from a gas discharge of the hair dryer to flow therethrough, and a body that extends backward from the head and coupled to a main body of the hair dryer. Accordingly, the concentrator may be securely coupled to the hair dryer to prevent separation and shaking upon use.

公开(公告)号：US11231025B2

公开(公告)日：2022-01-25

申请号：US16692520

申请日：2019-11-22

Applicant: LG Electronics Inc.

Inventor： Kwangwoon Ahn ,  Donghan Kim ,  Kiwon Noh ,  Joonsung Park

IPC: F04B39/16 ,  F04B35/04 ,  F04B39/02 ,  F04B39/12 ,  F04B53/16 ,  F16C33/10 ,  F04B53/18 ,  F04B53/20 ,  F16C32/06

Abstract: Provided is a linear compressor including a linear motor having a mover reciprocating with respect to a stator; a piston coupled to the mover to reciprocate; a cylinder into which the piston is slidingly inserted, the cylinder having an inner circumferential surface forming a bearing surface together with an external circumferential surface of the piston, the cylinder forming a compression space together with the piston, and the cylinder having at least one first hole formed through the inner circumferential surface of the cylinder and an outer circumferential surface of the cylinder to guide refrigerant discharged from the compression space to the bearing surface; and a porous member inserted into the outer circumferential surface of the cylinder and configured to cover the first hole, the porous member having multiple micropores smaller than the first hole.

公开(公告)号：US10151308B2

公开(公告)日：2018-12-11

申请号：US14487346

申请日：2014-09-16

Applicant: LG Electronics Inc.

Inventor： Kichul Choi ,  Kwangwoon Ahn ,  Donghan Kim

IPC: F04B53/02 ,  F04B39/02 ,  F04B35/04 ,  F04B39/12 ,  F04B53/00

Abstract: A reciprocating compressor is provided. The reciprocating compressor may include a cylinder having a compression space, a piston inserted into the cylinder to define the compression space while being reciprocated, the piston having a suction passage to communicate with the compression space, a gas bearing having at least one bearing hole that passes through the cylinder, so that a refrigerant gas may be injected between the cylinder and the piston to support the piston with respect to the cylinder, and a flow resister disposed at an outer circumferential surface of the cylinder or at one side of the cylinder to restrict a flow of the refrigerant gas flowing through or toward the at least one bearing hole.

公开(公告)号：US12004623B2

公开(公告)日：2024-06-11

申请号：US17075949

申请日：2020-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Kwangwoon Ahn ,  Hyunjoo Oh

IPC: A45D20/12

CPC classification number: A45D20/122

Abstract: A hair dryer is provided that may include a main body including a discharge unit configured to discharge fluid, such as air outside of the main body, and a handle provided at one side of the main body. The discharge unit may include a discharge base inserted into the main body and configured to form a plurality of discharge paths which are separated from each other and through which fluid may flow. The discharge unit may be configured to selectively discharge fluid through one discharge path of the plurality of the discharge paths.

公开(公告)号：US11896105B2

公开(公告)日：2024-02-13

申请号：US17076023

申请日：2020-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Kwangwoon Ahn ,  Hyunjoo Oh

IPC: A45D20/12

CPC classification number: A45D20/122

Abstract: A hair dryer is provided that may include a main body including a discharge unit configured to discharge fluid outside of the main body, and a handle provided at one side of the main body. The discharge unit may include a plurality of discharge areas configured to discharge fluid. The discharge unit may be configured to selectively discharge fluid through one of the plurality of the discharge areas.

公开(公告)号：US11375792B2

公开(公告)日：2022-07-05

申请号：US17078311

申请日：2020-10-23

Applicant: LG ELECTRONICS INC.

Inventor： Kyungseok Min ,  Hyunjoo Oh ,  Kwangwoon Ahn ,  Jounyoung Kim

IPC: A45D20/26 ,  A45D20/24 ,  A45D20/12

Abstract: A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case having an inner space for forming the flow path and configured to form an exterior of the handle, and a handle frame that extends from the main body in a downward direction so as to be disposed in the inner space of the handle case. The fan may be coupled to the handle frame and spaced apart from an inner circumferential surface of the handle case.

公开(公告)号：US20210353027A1

公开(公告)日：2021-11-18

申请号：US17098864

申请日：2020-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyunjoo OH ,  Kwangwoon Ahn

IPC: A45D20/12

Abstract: A concentrator and hair dryer including a concentrator are provided. The concentrator may include a head having at least one flow path provided therein to enable gas discharged from a gas discharge of the hair dryer to flow therethrough, and a body that extends backward from the head and coupled to a main body of the hair dryer. Accordingly, the concentrator may be securely coupled to the hair dryer to prevent separation and shaking upon use.