EP 2056041 A4 20140618 - HEAT TRANSFER DEVICE
Title (en)
HEAT TRANSFER DEVICE
Title (de)
WÄRMEÜBERTRAGUNGSVORRICHTUNG
Title (fr)
DISPOSITIF DE TRANSFERT DE CHALEUR
Publication
Application
Priority
- JP 2008053863 W 20080304
- JP 2007053874 A 20070305
Abstract (en)
[origin: EP2056041A1] The present invention has an object to provide a heat transfer device that can adjust a difference between an amount of refrigerant in heating operation and that in cooling operation when CO 2 is used as a refrigerant, without separately providing a heater and a cooler. The heat transfer device (20) includes a third channel (L31, L32) provided in parallel with a second channel (L2), a refrigerant tank (3) provided on the third channel (L31, L32), and a fourth channel (L4) having one end communicating with a first channel (L1) and the other end communicating with the refrigerant tank (3) . In the heat transfer device (20), in cooling operation, the refrigerant discharged from the liquid pump (1) passes through a use side heat exchanger (4), the refrigerant tank (3), and a heat source side heat exchanger (2) in this order and is returned to the liquid pump (1), and a part of the liquid refrigerant discharged from the liquid pump (1) is stored in the refrigerant tank (3) through the fourth channel (L4). In heating operation, the refrigerant discharged from the liquid pump (1) passes through the heat source side heat exchanger (2) and the use side heat exchanger (4) in this order and is returned to the liquid pump (1).
IPC 8 full level
F25B 1/00 (2006.01); F25B 9/00 (2006.01); F25B 13/00 (2006.01); F25B 23/00 (2006.01); F25B 41/00 (2006.01)
CPC (source: EP)
F25B 9/008 (2013.01); F25B 23/00 (2013.01); F25B 13/00 (2013.01); F25B 2309/061 (2013.01); F25B 2400/16 (2013.01)
Citation (search report)
- [I] US 4562700 A 19860107 - ATSUMI AKIRA [JP], et al
- See references of WO 2008111431A1
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 2056041 A1 20090506; EP 2056041 A4 20140618; CN 101542217 A 20090923; CN 101542217 B 20120328; JP 2008215717 A 20080918; WO 2008111431 A1 20080918
DOCDB simple family (application)
EP 08721283 A 20080304; CN 200880000547 A 20080304; JP 2007053874 A 20070305; JP 2008053863 W 20080304