(19)
(11) EP 1 215 454 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.09.2002 Bulletin 2002/37

(43) Date of publication A2:
19.06.2002 Bulletin 2002/25

(21) Application number: 01830751.2

(22) Date of filing: 10.12.2001
(51) International Patent Classification (IPC)7F25B 49/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 13.12.2000 IT FI000250

(71) Applicant: Magnetek S.p.A.
52028 Terranuova Bracciolini (Arezzo) (IT)

(72) Inventors:
  • Canova, Antonio
    52025 Montevarchi, Arezzo (IT)
  • Bianchi, Andrea
    52028 S. Giovanni Valdarno, Arezzo (IT)
  • Martini, David
    52028 S. Giovanni Valdarno, Arezzo (IT)

(74) Representative: Mannucci, Michele et al
Ufficio Tecnico Ing.A. Mannucci S.R.L, Via della Scala 4
50123 Firenze
50123 Firenze (IT)

   


(54) Method for reducing energy consumption in a refrigerating machine, and refrigerating machine operating according to said method


(57) The method for controlling a motor compressor (3, 5) in a refrigerating machine envisages determining an optimal rate (fott) of operation of the motor compressor, which minimizes energy consumption of the machine, and causing said motor compressor to operate, during each turning-on cycle, alternatively at said optimal rate (fott) or at a higher rate (fmax) according to the required cooling rate.







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