公开(公告)号：US20220205441A1

公开(公告)日：2022-06-30

申请号：US17523230

申请日：2021-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Youngmun LEE ,  Hyeongjun LIM ,  Kiwon NOH

IPC: F04B39/00 ,  F04B39/12 ,  F04B39/16

Abstract: A linear compressor includes: a shell including an intake pipe configured to suction a refrigerant, a piston including a piston body, an intake muffler including a first muffler that includes a first muffler body defining a main flow passage and a first muffler flange extending in a radial direction from the first muffler body, and at least one auxiliary flow passage disposed between an outer peripheral surface of the first muffler body and an inner peripheral surface of the piston body and configured to guide the refrigerant remaining between the first muffler body and the piston body to an outside of the piston. A cross-sectional area of the at least one auxiliary flow passage is less than a cross-sectional area of an inlet hole provided at a rear end of the main flow passage and greater than or equal to 10% of the cross-sectional area of the inlet hole.

公开(公告)号：US20210180580A1

公开(公告)日：2021-06-17

申请号：US17086945

申请日：2020-11-02

Applicant: LG Electronics Inc.

Inventor： Hyeongjun LIM ,  Jungsik PARK

IPC: F04B39/00 ,  F04B39/12

Abstract: A compressor is disclosed, which comprises a case, a cylinder disposed inside the case, a piston moving inside the cylinder, and a muffler provided in the piston. The muffler includes a fluid pipe provided with a resonant space formed between an outer circumferential surface and an inner circumferential surface of the piston, and a guide panel protruded from the outer circumferential surface of the fluid pipe to the inner circumferential surface of the piston and extended along an outer circumferential direction of the fluid pipe. The guide panel is provided in a plural number, and is partially opened along the outer circumferential direction of the fluid pipe to form an open area, and the open area formed in any one guide panel is covered by its adjacent guide panel.

公开(公告)号：US20220389919A1

公开(公告)日：2022-12-08

申请号：US17710200

申请日：2022-03-31

Applicant: LG Electronics Inc.

Inventor： Kwangwook KIM ,  Hyeongjun LIM

IPC: F04B35/04 ,  F04B39/12

Abstract: A compressor includes a case, a compression unit having a cylinder, a piston disposed inside the cylinder, and a driving unit for reciprocating the piston, and a support unit elastically supporting the compression unit to be spaced apart from an inner surface of the case. The support unit includes a wire spring having a plurality of linear portions arranged in parallel with one another and curved portions each connecting two adjacent linear portions. The wire spring includes a first wire spring and a second wire spring symmetrically disposed with each other. The wire spring includes a connecting portion connecting the first wire spring and the second wire spring, and the connecting portion is supported by the case. Accordingly, a simplified structure can be obtained and a manufacturing cost can be reduced.

公开(公告)号：US20220364553A1

公开(公告)日：2022-11-17

申请号：US17592916

申请日：2022-02-04

Applicant: LG Electronics Inc.

Inventor： Jongchan LEE ,  Sunghyun KI ,  Hyeongjun LIM

IPC: F04B39/00 ,  F04B39/10 ,  F04B39/12

Abstract: A compressor includes: a case, a compression unit that is provided inside the case and that includes a cylinder and a piston configured to reciprocate inside the cylinder to compress refrigerant, a driving unit that includes a stator disposed inside the case and a plurality of permanent magnets configured to reciprocate with respect to the stator and that is configured to provide a driving force to the compression unit, and a resonator that is configured to reduce noises generated while the compression unit is operated, that is disposed between the compression unit and an inner surface of the case facing the compression unit in an axial direction, and that is spaced apart from the compression unit.

公开(公告)号：US20220389918A1

公开(公告)日：2022-12-08

申请号：US17710073

申请日：2022-03-31

Applicant: LG Electronics Inc.

Inventor： Hyeongjun LIM ,  Kwangwook KIM

IPC: F04B35/04 ,  F04B39/12

Abstract: The present disclosure relates to a compressor including a case, a compression unit provided inside the case, and a driving unit, wherein the compression unit includes a cylinder having a compression space, a piston reciprocating inside the cylinder, a discharge cover covering the compression space, a first plenum disposed inside the discharge cover and having a discharge space and a coupling space, a second plenum disposed inside the discharge cover and defining a movement channel through which refrigerant moves, a rib disposed in the movement channel, and a communicating portion through which the discharge space and the movement channel communicate with each other, wherein the refrigerant discharged from the compression space moves along the discharge space, the communicating portion, and the movement channel, whereby pulsation caused by the discharge of the refrigerant can be reduced.