(19)
(11) EP 1 607 631 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.03.2006 Bulletin 2006/12

(43) Date of publication A2:
21.12.2005 Bulletin 2005/51

(21) Application number: 05103404.9

(22) Date of filing: 26.04.2005
(51) International Patent Classification (IPC): 
F04B 35/04(2006.01)
 F04B 49/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 04.06.2004 KR 2004040994
13.09.2004 KR 2004073172

(71) Applicant: SAMSUNG ELECTRONICS CO., LTD.
Suwon-si, Gyeonggi-Do 442-742 (KR)

(72) Inventors:
  • Chang, Keun Sik # 105-701, Dongsuwon LG Village 1
    Gyeonggi-do (KR)
  • Chang, Phil Soo 403-1301, Sunkyung Apt.
    Gyeonggi-Do (KR)

(74) Representative: Geary, Stuart Lloyd et al
Venner Shipley LLP 20 Little Britain
London EC1A 7DH
London EC1A 7DH (GB)

   


(54) Compressor System


(57) A driving unit and control method for a reciprocating compressor for controlling a frequency of input power so that an operational frequency of the compressor follows a resonant frequency, which varies depending on a variation of the load applied to the compressor. The reciprocating compressor includes an inverter to adjust the frequency of the input power, so that the frequency of the input power is set at a value corresponding to the resonant frequency by the inverter. The resonant frequency is set in a range of 60% to 90% of the normal power frequency. The compressor further includes a controller to control the frequency of the input power so that the operational frequency of the compressor follows the resonant frequency, which varies depending on the operation of the compressor.







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