(19)
(11) EP 2 103 793 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.2012 Bulletin 2012/20

(43) Date of publication A2:
23.09.2009 Bulletin 2009/39

(21) Application number: 09155507.8

(22) Date of filing: 18.03.2009
(51) International Patent Classification (IPC): 
F02C 6/12(2006.01)
F01D 17/14(2006.01)
F02C 9/00(2006.01)
F01D 17/16(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 MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 19.03.2008 JP 2008072062

(71) Applicants:
  • Toyota Jidosha Kabushiki Kaisha
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • Kabushiki Kaisha Toyota Jidoshokki
    Kariya-shi, Aichi 448-8671 (JP)

(72) Inventors:
  • Isogai, Tomoyuki
    Toyota-shi Aichi 471-8571 (JP)
  • Uesugi, Tsuyoshi
    Kariya-shi Aichi 448-8671 (JP)
  • Akimoto, Kenta
    Kariya-shi Aichi 448-8671 (JP)
  • Uchida, Hiroshi
    Aichi-gun Aichi 480-1192 (JP)
  • Kashimoto, Akinobu
    Aichi-gun Aichi 480-1192 (JP)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Flow rate control system for turbocharger


(57) A turbocharger 1 includes a turbine wheel 30, an inner peripheral member 23 provided outside the turbine wheel 30, and an outer peripheral member 13 provided outside the inner peripheral member 23 that can turn relative to the inner peripheral member 23 in the circumferential direction. The inner peripheral member 23 and the outer peripheral member 13 are provided with a plurality of inner guide portions 21 and a plurality of outer guide portions 11, respectively, that define gas passages 22 and 12 between successive guide portions 21, 11. The flow of gas to the turbine wheel 30 through the gas passages may be adjusted by turning one of the outer peripheral member 13 or the inner peripheral member 23 so that the inner guide portions 21 restrict the flow of gas through the gas passages 12 of the outer peripheral member 13.







Search report