The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 2025

Filed:

Jun. 07, 2023
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Chulgi Roh, Seoul, KR;

Junghae Kim, Seoul, KR;

Sangeun Bae, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 35/04 (2006.01); F04B 39/00 (2006.01);
U.S. Cl.
CPC ...
F04B 39/0061 (2013.01); F04B 35/045 (2013.01);
Abstract

A linear compressor includes a cylinder, a piston configured to axially reciprocate in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening in a radially central area thereof, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that is in fluid communication with the first intake muffler and coupled to the opening, and a muffler body surrounding the second intake muffler. The second muffler unit further includes a rib protruding from an outer surface or an inner surface of the second intake muffler.


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