(19)
(11) EP 2 050 965 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.11.2014 Bulletin 2014/45

(43) Date of publication A2:
22.04.2009 Bulletin 2009/17

(21) Application number: 08166799.0

(22) Date of filing: 16.10.2008
(51) International Patent Classification (IPC): 
F04C 23/00(2006.01)
F04C 18/356(2006.01)
 F04C 18/02(2006.01)
F04C 29/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 19.10.2007 JP 2007272482

(71) Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Tokyo 108-8215 (JP)

(72) Inventors:
  • Sato, Hajime
    1, Aza Takamichi, Iwatsuka-cho Nakamura-ku Nagoya, Aichi-ken 453-8515 (JP)
  • Kimata, Yoshiyuki
    3-1, Asahi, Nishibiwajima-cho Kiyosu, Aichi-ken 452-8561 (JP)

(74) Representative: Intès, Didier Gérard André et al
Cabinet Beau de Loménie 158, rue de l'Université
75340 Paris Cedex 07
75340 Paris Cedex 07 (FR)

   


(54) Compressor


(57) A compressor (1) including a hermetic housing (2), a low stage-side compression mechanism (3) and a high stage-side compression mechanism (4) provided in the hermetic housing (2); and an electric motor (21) for driving the low stage-side compression mechanism (3) and the high stage-side compression mechanism (4). The low stage-side compression mechanism (3) is a rotary type compression mechanism, and the high stage-side compression mechanism (4) is a scroll type compression mechanism. The suction shutoff of the scroll type compression mechanism is accomplished when a rotor (34) of the rotary type compression mechanism is at a position (A) corresponding to the bottom dead center, at a position (B) of being rotated through 90 degrees from the bottom dead center, or between the positions (A and B).







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