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:
May. 29, 2018

Filed:

Dec. 16, 2014
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Hongjae Lim, Seoul, KR;

Jaewan Lee, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 5/00 (2006.01); F25B 41/00 (2006.01); F25B 13/00 (2006.01); F25B 40/02 (2006.01); F24F 11/00 (2018.01); F25B 31/00 (2006.01); F25B 43/02 (2006.01); F25B 45/00 (2006.01);
U.S. Cl.
CPC ...
F25B 41/003 (2013.01); F24F 11/0012 (2013.01); F25B 13/00 (2013.01); F25B 40/02 (2013.01); F25B 31/004 (2013.01); F25B 43/02 (2013.01); F25B 45/00 (2013.01); F25B 2313/023 (2013.01); F25B 2313/0253 (2013.01); F25B 2313/0254 (2013.01); F25B 2313/02741 (2013.01); F25B 2313/0315 (2013.01); F25B 2400/075 (2013.01); F25B 2400/13 (2013.01); F25B 2400/16 (2013.01); F25B 2400/23 (2013.01); F25B 2500/24 (2013.01); F25B 2500/29 (2013.01); F25B 2600/0271 (2013.01); F25B 2600/0272 (2013.01); F25B 2600/2501 (2013.01); F25B 2600/2509 (2013.01);
Abstract

An air conditioner and a method of controlling an air conditioner are provided. The method of controlling an air conditioner may include determining whether a low-load condition is satisfied on the basis of a number of indoor devices or a temperature of external air, performing a low-load operation of a compressor at a predetermined frequency when the low-load condition is satisfied, detecting whether an operation pressure is out of a target pressure value or range while the low-load operation is performed, and bypassing a refrigerant from the compressor to a gas/liquid separator via an injection passage when the operation pressure is out of the target pressure value or range.


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