公开(公告)号：US09726164B2

公开(公告)日：2017-08-08

申请号：US14317172

申请日：2014-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyoungseok Kang ,  Wonhyun Jung ,  Chulgi Roh ,  Sangsub Jeong ,  Kiwook Song ,  Jookon Kim

IPC: F04B39/00 ,  F04B35/04 ,  F04B39/14

CPC classification number: F04B39/0044 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/14

Abstract: A linear compressor is provided that may include a shell including a refrigerant inlet, a cylinder provided within the shell, a piston reciprocated within the cylinder, the piston having a flow space in which a refrigerant may flow, a motor assembly that provides a drive force, the motor assembly including a permanent magnet, a flange that extends from an end of the piston in a radial direction, the flange having an opening that communicates with the flow space of the piston and a coupling hole defined outside of the opening, a support coupled to the coupling surface of the flange to support a plurality of springs, and at least one reinforcing rib that protrudes from the coupling surface to guide deformation of the flange while the flange and the support are coupled to each other.

公开(公告)号：US10670047B2

公开(公告)日：2020-06-02

申请号：US15274729

申请日：2016-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Kiwook Song ,  Jinsoo Kim ,  Dongwook Choi

IPC: F04D29/42 ,  F04D29/28 ,  F04D17/16 ,  F04D25/02

Abstract: A centrifugal fan includes: an impeller configured to suction or discharge air; a motor configured to rotate the impeller; a housing configured to accommodate the impeller and have a suction port through which air is suctioned by rotation of the impeller and a discharge port through which air is discharged by rotation of the impeller; and a cut-off portion formed on one side of the discharge port. A flow cross-sectional area of air flowing in the housing is gradually increased from the cut-off portion to the discharge port in an air flow direction, and a distance from a lower portion of the impeller to an inner peripheral surface of the housing in a rotational axis direction of the impeller is gradually increased in at least a portion from the cut-off portion to the discharge port in the air flow direction.

公开(公告)号：US10428838B2

公开(公告)日：2019-10-01

申请号：US15277714

申请日：2016-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Kiwook Song ,  Jinsoo Kim ,  Dongwook Choi

IPC: F04D29/66 ,  F04D29/28 ,  F04D29/30 ,  F04D17/16 ,  F04D29/42 ,  F24F1/0022

Abstract: A centrifugal fan includes: a housing; an impeller which is mounted in the housing; a hub which is provided in the impeller and is rotated by a driving force of a motor; and a plurality of blades which radially extend at the hub. Each of the plurality of blades is formed to have a shape curved from a leading edge to a trailing edge in a rotational direction of the impeller in each of the plurality of blades. A farthest point from a plane connecting the leading edge and the trailing edge is defined as a peak portion. The peak portion is placed closer to the leading edge than the trailing edge.

公开(公告)号：US09695811B2

公开(公告)日：2017-07-04

申请号：US14317120

申请日：2014-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyoungseok Kang ,  Wonhyun Jung ,  Chulgi Roh ,  Kiwook Song ,  Jookon Kim ,  Sangsub Jeong

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

CPC classification number: F04B35/045 ,  F04B39/0061 ,  F04B39/0284 ,  F04B39/122 ,  F04B39/127

Abstract: A linear compressor is provided. The linear compressor may include a shell having a refrigerant inlet, a cylinder arranged in the shell, a piston that reciprocates in the cylinder, a motor assembly that provides a drive force to the piston and having a permanent magnet, and a frame arranged on or at a side of the motor assembly. The cylinder may include a first outer circumference with which an inner stator of the motor assembly may be combined, and a second outer circumference that extends from the first outer circumference and forcibly press-fit into the frame.