Global Patent Index - EP 1972862 A4

EP 1972862 A4 20130911 - HEAT PUMP HOT WATER SUPPLY DEVICE

Title (en)

HEAT PUMP HOT WATER SUPPLY DEVICE

Title (de)

HEISSWASSERZUFUHRVORRICHTUNG FÜR WÄRMEPUMPE

Title (fr)

DISPOSITIF D ALIMENTATION EN EAU CHAUDE D UNE POMPE A CHALEUR

Publication

EP 1972862 A4 20130911 (EN)

Application

EP 06832949 A 20061120

Priority

  • JP 2006323099 W 20061120
  • JP 2005378539 A 20051228

Abstract (en)

[origin: EP1972862A1] The heat pump water heater comprises a CO 2 cycle 1 in which CO 2 refrigerant circulates, a R410A cycle 2 in which R410A refrigerant circulates, and a water heat exchanger 32 for conducting heat exchange between the CO 2 refrigerant and/or the R410A refrigerant and water, wherein the R410A cycle 2 includes a circulation path 20 passing through the water heat exchanger 32, a circulation path 40 passing through a indoor air heat exchanger 4 that conducts heat exchange between the R410A refrigerant and indoor air, and a four-way valve 24 for switching the circulating direction of the R410A refrigerant in the present R410A cycle 2 to provide heat pump water heater, capable of using a heat pump cycle for supplying hot water in cooling and heating (air-conditioning). And also, to obtain a sufficient temperature and an amount of the hot water supply when the heat pump water heater simultaneously conducts heating and supplying hot water.

IPC 8 full level

F24H 1/00 (2006.01); F24H 9/00 (2006.01); F25B 1/00 (2006.01)

CPC (source: EP)

F24D 17/02 (2013.01); F25B 9/008 (2013.01); F25B 13/00 (2013.01); F25B 2309/061 (2013.01); F25B 2313/003 (2013.01); F25B 2313/0213 (2013.01); F25B 2313/02741 (2013.01); F25B 2400/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR IT SE

DOCDB simple family (publication)

EP 1972862 A1 20080924; EP 1972862 A4 20130911; EP 1972862 B1 20151021; CN 101346592 A 20090114; CN 101346592 B 20110803; JP 2007178088 A 20070712; JP 3966889 B2 20070829; WO 2007077687 A1 20070712

DOCDB simple family (application)

EP 06832949 A 20061120; CN 200680049376 A 20061120; JP 2005378539 A 20051228; JP 2006323099 W 20061120