EP 2218984 A3 20110406 - Air conditioner and method of controlling the same

Title (en)

Air conditioner and method of controlling the same

Title (de)

Klimaanlage und Steuerverfahren dafür

Title (fr)

Climatiseur et procédé de commande correspondant

Publication

EP 2218984 A3 20110406 (EN)

Application

EP 10001542 A 20100215

Priority

KR 20090012519 A 20090216

Abstract (en)

[origin: EP2218984A2] An air conditioner includes a plurality of compressors (120a, b, c), a common intake pipe (111), and a plurality of oil equalizing pipes (114a, b, c) that connect the compressors (120a, b, c) to the common intake pipe (111) such that oil existing above a reference oil level in the compressors (120a, b, c) can be transferred to the common intake pipe (111). An oil equalizing valve (135a, b, c) provided on at least two of the oil equalizing pipes (114a, b, c) controls oil flowing through the oil equalizing pipes, where at least two of the oil equalizing valves can be opened together during performance of oil equalizing operation such that amounts of the oil in at least two compressors can be equalized.

IPC 8 full level

F25B 13/00 (2006.01); F25B 31/00 (2006.01); F25B 49/00 (2006.01)

CPC (source: EP KR US)

F25B 13/00 (2013.01 - KR); F25B 31/004 (2013.01 - EP KR US); F25B 13/00 (2013.01 - EP US); F25B 2313/0253 (2013.01 - EP KR US); F25B 2313/02742 (2013.01 - EP KR US); F25B 2400/06 (2013.01 - KR); F25B 2400/075 (2013.01 - EP KR US); F25B 2700/2105 (2013.01 - EP KR US); F25B 2700/21152 (2013.01 - EP KR US)

Citation (search report)

[XI] EP 1677057 A2 20060705 - SAMSUNG ELECTRONICS CO LTD [KR]
[XI] EP 1367259 A1 20031203 - TOSHIBA CARRIER CORP [JP]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2218984 A2 20100818; EP 2218984 A3 20110406; EP 2218984 B1 20151216; KR 101588204 B1 20160125; KR 20100093370 A 20100825; US 2010206000 A1 20100819

DOCDB simple family (application)

EP 10001542 A 20100215; KR 20090012519 A 20090216; US 65663010 A 20100205