EP 2735822 A2 20140528 - Refrigeration/air-conditioning apparatus
Title (en)
Refrigeration/air-conditioning apparatus
Title (de)
Kühl-/Klimaanlage
Title (fr)
Appareil de climatisation d'air/de réfrigération
Publication
Application
Priority
JP 2012255396 A 20121121
Abstract (en)
The invention provides a refrigeration/air-conditioning apparatus (1) which can bypass an appropriate amount of liquid refrigerant to suppress a rise in discharge temperature, while suppressing, as much as possible, the opening/closing frequency of an electromagnetic valve (9), and in which it is possible to form a liquid bypass circuit (8) with a low-cost and simple structure. The refrigeration/air-conditioning apparatus (1), which is equipped with a liquid bypass circuit (8) provided with an electromagnetic valve (9), between a high-pressure liquid line (6B) in a refrigeration cycle (7) and a suction line (6C) running to a compressor (2), includes a control means (11) for opening and closing the electromagnetic valve (9) on the basis of a detected temperature in a discharge temperature sensor (10) provided in a discharge line (6A) from the compressor (2), and for varying a set temperature at which the electromagnetic valve (9) is closed depending on the time since the last time the electromagnetic valve was opened or closed.
IPC 8 full level
F25B 49/02 (2006.01); F25B 31/00 (2006.01); F25B 41/04 (2006.01)
CPC (source: EP US)
F25B 41/20 (2021.01 - EP US); F25B 49/02 (2013.01 - EP US); F25B 2400/0409 (2013.01 - EP); F25B 2500/08 (2013.01 - EP); F25B 2600/01 (2013.01 - EP); F25B 2600/2501 (2013.01 - EP); F25B 2600/2519 (2013.01 - EP); F25B 2700/21151 (2013.01 - EP); F25B 2700/21152 (2013.01 - EP)
Citation (applicant)
JP H05172408 A 19930709 - HITACHI LTD, et al
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2735822 A2 20140528; EP 2735822 A3 20170215; EP 2735822 B1 20190814; JP 2014102051 A 20140605; JP 6037794 B2 20161207
DOCDB simple family (application)
EP 13193505 A 20131119; JP 2012255396 A 20121121