(19)
(11) EP 2 508 821 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.02.2015 Bulletin 2015/07

(43) Date of publication A2:
10.10.2012 Bulletin 2012/41

(21) Application number: 12163185.7

(22) Date of filing: 04.04.2012
(51) International Patent Classification (IPC): 
F25B 49/02(2006.01)
 F25B 40/02(2006.01)
(84) Designated Contracting States:
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 States:
BA ME

(30) Priority: 07.04.2011 JP 2011085142

(71) Applicant: Panasonic Corporation
Osaka 571-8501 (JP)

(72) Inventors:
  • Moriwaki, Shunji
    Chuo-ku, OSAKA, 540-6207 (JP)
  • Aoyama, Shigeo
    Chuo-ku, OSAKA, 540-6207 (JP)
  • Kusaka, Michiyoshi
    Chuo-ku, OSAKA, 540-6207 (JP)

(74) Representative: Eisenführ Speiser 
Patentanwälte Rechtsanwälte PartGmbB Postfach 31 02 60
80102 München
80102 München (DE)

   


(54) Refrigeration cycle apparatus and hydronic heater including the refrigeration cycle apparatus


(57) The present invention provides a refrigeration cycle apparatus 1A. When a temperature detected by the first temperature sensor 61 is higher than a temperature detected by the first saturation temperature detecting means 51, a control device 4 operates bypass expansion means 31 such that the temperature detected by the first temperature sensor 61 comes close to the temperature detected by the first saturation temperature detecting means 51. If the temperature detected by the first temperature sensor 61 is substantially equal to the temperature detected by the first saturation temperature detecting means 51, the control device 4 operates the bypass expansion means 31 such that a temperature detected by the second temperature sensor 6 becomes lower than a temperature detected by the second saturation temperature detecting means 52 by a predetermined temperature. Therefore, it is possible to enhance the heating ability and efficiency of the refrigeration cycle apparatus 1A.







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