(19)
(11) EP 0 443 620 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.11.1991 Bulletin 1991/48

(43) Date of publication A2:
28.08.1991 Bulletin 1991/35

(21) Application number: 91102656.5

(22) Date of filing: 22.02.1991
(51) International Patent Classification (IPC)5: F25B 25/02
(84) Designated Contracting States:
DE FR

(30) Priority: 23.02.1990 JP 41016/90

(71) Applicant: HITACHI, LTD.
Chiyoda-ku, Tokyo 100 (JP)

(72) Inventor:
  • Yanadori, Michio
    Ryugasaki-chi (JP)

(74) Representative: Finck, Dieter, Dr.Ing. et al
Patentanwälte v. Füner, Ebbinghaus, Finck Mariahilfplatz 2 - 3
D-81541 München
D-81541 München (DE)


(56) References cited: : 
   
       


    (54) Heat pump


    (57) A heat pump includes a reactor (5) adapted to accommodate a reaction material (7), the reactor (5) including a heat transfer device (100f) for accumulating heat and another heat transfer device (100e) for radiating heat. The reactor (5) communicates to a reservoir (1) adapted to accommodate a reaction medium (2) through a heat accumulation pipe (17, 19) with a compressor (3) and a valve (9) and a heat radiation pipe (13) with a valve (11) to form a circulating loop. Heat pumps having such a construction may be arranged in parallel.






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