EP 2389548 A2 20111130 - REFRIGERATION CYCLE APPARATUS
Title (en)
REFRIGERATION CYCLE APPARATUS
Title (de)
KÜHLZYKLUSVORRICHTUNG
Title (fr)
APPAREIL A CYCLE FRIGORIFIQUE
Publication
Application
Priority
- JP 2009007020 W 20091218
- JP 2009009707 A 20090120
Abstract (en)
[origin: WO2010084552A2] A refrigeration cycle apparatus includes an expander-compressor unit (1) having a first motor (12), a second compressor (2) having a second motor (22), and a controller (7). The controller (7) determines the target rotational frequency F1 of the first motor (12) and the target rotational frequency F2 of the second motor (22) for a start-up operation, and determines whether the opening X of an injection valve (61) should be in a fully opened state or in a fully closed state during the start-up operation, based on an outside air temperature and other factors. Then, the controller (7) performs the start-up operation by controlling the rotational frequencies f1 and f2 of the first motor and the second motor to be the determined target rotational frequencies F1 and F2 while maintaining the opening X of the injection valve in the fully opened state or in the fully closed state.
IPC 8 full level
F25B 9/06 (2006.01)
CPC (source: EP US)
F25B 9/06 (2013.01 - EP US); F25B 2500/26 (2013.01 - EP US)
Citation (search report)
See references of WO 2010084552A2
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
DOCDB simple family (publication)
WO 2010084552 A2 20100729; WO 2010084552 A3 20101007; CN 102282433 A 20111214; CN 102282433 B 20130731; EP 2389548 A2 20111130; JP 2012515890 A 20120712; US 2012017620 A1 20120126
DOCDB simple family (application)
JP 2009007020 W 20091218; CN 200980154633 A 20091218; EP 09801563 A 20091218; JP 2011529408 A 20091218; US 200913144848 A 20091218