(19)
(11) EP 2 469 090 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.11.2017 Bulletin 2017/47

(43) Date of publication A2:
27.06.2012 Bulletin 2012/26

(21) Application number: 11009552.8

(22) Date of filing: 02.12.2011
(51) International Patent Classification (IPC): 
F04B 49/20(2006.01)
F04B 53/14(2006.01)
F04B 49/06(2006.01)
 F04B 53/02(2006.01)
F04B 35/04(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: 25.12.2010 JP 2010289019

(71) Applicant: Max Co., Ltd.
Chuo-ku Tokyo 103-8502 (JP)

(72) Inventor:
  • Asai, Masatoshi
    Tokyo 103-8502 (JP)

(74) Representative: Samson & Partner Patentanwälte mbB 
Widenmayerstraße 6
80538 München
80538 München (DE)

   


(54) Compressor and operation method of compressor


(57) A compressor is provided with: a motor (30); a piston rod (11) which is driven by the motor (30) and reciprocatable within a cylinder (10); a seal member (14) adapted to seal between the piston rod (11) and the cylinder (10); a cold state determining unit (110) adapted to determine whether the compressor is in a cold state or not; and a rotating speed control unit (120) adapted to control a rotating speed of the motor (30) to increase so that a warm-up operation is executed when the cold state determining unit (110) determines that the compressor is in the cold state.







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