US 11,952,992 B2
Linear compressor
Wooju Jeon, Seoul (KR); Kyungmin Lee, Seoul (KR); and Sangik Son, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Oct. 18, 2021, as Appl. No. 17/503,468.
Claims priority of application No. 10-2020-0169878 (KR), filed on Dec. 7, 2020.
Prior Publication US 2022/0178361 A1, Jun. 9, 2022
Int. Cl. F04B 39/12 (2006.01); F04B 17/04 (2006.01); F04B 35/04 (2006.01); F04B 39/02 (2006.01); F04B 39/10 (2006.01); F04B 49/08 (2006.01); F04B 49/22 (2006.01); F04B 53/00 (2006.01); F04B 53/10 (2006.01); F04B 53/16 (2006.01); F04B 53/18 (2006.01)
CPC F04B 39/122 (2013.01) [F04B 35/045 (2013.01); F04B 39/0276 (2013.01); F04B 39/0292 (2013.01); F04B 39/121 (2013.01); F04B 49/08 (2013.01); F04B 49/22 (2013.01); F04B 17/046 (2013.01); F04B 39/10 (2013.01); F04B 53/008 (2013.01); F04B 53/106 (2013.01); F04B 53/162 (2013.01); F04B 53/18 (2013.01); F25B 2400/073 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A linear compressor comprising:
a frame comprising a body portion, a flange portion extending from a front of the body portion along a radial direction of the body portion, and a bearing communication hole that is in fluid communication with a front surface of the flange portion and an inner circumferential surface of the body portion;
a cylinder that is coupled to the body portion and that includes a gas inlet (i) passing through an inner circumferential surface and an outer circumferential surface of the cylinder and (ii) in fluid communication with the bearing communication hole;
a piston that is disposed in the cylinder and that is configured to reciprocate along an axial direction of the cylinder; and
a valve member that is press-fitted to an inner circumferential surface of the gas inlet of the cylinder and that is configured to open and close the gas inlet based on a pressure of air between the cylinder and the piston,
wherein the valve member comprises (i) a coupling portion press-fitted to the inner circumferential surface of the gas inlet, (ii) a nozzle portion disposed at a first side of the coupling portion, and (iii) an elastic portion configured to open and close the nozzle portion based on the pressure.