US 12,241,460 B2
Linear compressor
Wooju Jeon, Seoul (KR); Donghan Kim, Seoul (KR); Sangik Son, Seoul (KR); and Jaehyeok Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 18/011,432
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Dec. 13, 2021, PCT No. PCT/KR2021/018883
§ 371(c)(1), (2) Date Dec. 19, 2022,
PCT Pub. No. WO2022/145805, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 10-2020-0188307 (KR), filed on Dec. 30, 2020.
Prior Publication US 2023/0243345 A1, Aug. 3, 2023
Int. Cl. F04B 39/00 (2006.01); F04B 35/04 (2006.01); F04B 53/00 (2006.01); F04B 53/14 (2006.01)
CPC F04B 39/0022 (2013.01) [F04B 39/0016 (2013.01); F04B 39/0061 (2013.01); F04B 35/045 (2013.01); F04B 39/0044 (2013.01); F04B 53/003 (2013.01); F04B 53/004 (2013.01); F04B 53/145 (2013.01); F04B 53/147 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A linear compressor comprising:
a cylinder;
a piston configured to reciprocate inside the cylinder, the piston comprising a sliding portion and a head portion;
a supporter comprising a plate disposed at a side of the piston opposite to the head portion of the piston;
an elastic body disposed at the piston and having an outer side coupled to an inner circumferential surface of the piston; and
a rod extending axially and having (i) a first side coupled to a central area of the elastic body and (ii) a second side connected to a central area of the plate,
wherein the first side of the rod is formed of a male thread,
wherein a coupling hole formed of a female thread is comprised in the central area of the elastic body,
wherein the coupling hole is screw-coupled to the first side of the rod,
wherein an outer circumferential surface of the elastic body is formed of a male thread,
wherein a part of an inner circumferential surface of the piston to which the elastic body is coupled is formed of a female thread,
wherein the elastic body is screw-coupled to the inner circumferential surface of the piston, and
wherein the elastic body comprises a plurality of first flow holes disposed about an axis of the rod.