EP 1830143 A2 20070905 - Refrigeration cycle apparatus
Title (en)
Refrigeration cycle apparatus
Title (de)
Kältekreislaufvorrichtung
Title (fr)
Circuit de réfrigération
Publication
Application
Priority
JP 2006057417 A 20060303
Abstract (en)
In a refrigeration cycle apparatus having an expansion mechanism whose number of revolutions can be changed independently from the number of revolutions of a compressing mechanism, it is an object of the invention to adjust a circulation amount of a refrigerant flowing into the expansion mechanism in a wider range without deteriorating the reliability of the expansion mechanism, and to operate the refrigeration cycle apparatus efficiently. The refrigeration cycle apparatus comprises a compressing mechanism 2, a heat source-side heat exchanger 6, an expansion mechanism 5 which collects power and has the number of revolutions that can be changed independently from the number of revolutions of the compressing mechanism 2, a utilizing-side heat exchanger 3, and a pre-expansion valve 11 for decompressing a refrigerant flowing into the expansion mechanism 5. With this refrigeration cycle apparatus, when the high pressure-side pressure can not be adjusted to a preferable pressure without bringing the number of revolutions of the expansion mechanism 5 out from its using range, the high pressure-side pressure can be adjusted by operating an opening of the pre-decompressor. Therefore, the refrigeration cycle apparatus can be operated efficiently without deteriorating the reliability of the expansion mechanism.
IPC 8 full level
F25B 25/00 (2006.01)
CPC (source: EP)
F25B 9/06 (2013.01); F25B 40/00 (2013.01); F25B 41/39 (2021.01); F25B 49/02 (2013.01); F25B 9/008 (2013.01); F25B 2309/061 (2013.01); F25B 2339/047 (2013.01); F25B 2400/0411 (2013.01); F25B 2400/141 (2013.01); F25B 2600/2501 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/21152 (2013.01)
Designated contracting state (EPC)
DE DK FR GB SE
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1830143 A2 20070905; EP 1830143 A3 20100414; JP 2007232322 A 20070913; JP 4765675 B2 20110907
DOCDB simple family (application)
EP 07004366 A 20070302; JP 2006057417 A 20060303