(19)
(11) EP 1 837 525 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.06.2010 Bulletin 2010/23

(43) Date of publication A2:
26.09.2007 Bulletin 2007/39

(21) Application number: 07004882.2

(22) Date of filing: 09.03.2007
(51) International Patent Classification (IPC): 
F04C 27/00(2006.01)
 F04C 18/02(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 LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 23.03.2006 JP 2006080147

(71) Applicant: Anest Iwata Corporation
Yokohama-shi, Kanagawa (JP)

(72) Inventors:
  • Ishikawa, Hidetoshi
    Yokohama, Kanagawa (JP)
  • Fujioka, Tamotsu
    Yokohama, Kanagawa (JP)
  • Tsuchiya, Masaru
    Yokohama, Kanagawa (JP)

(74) Representative: Zardi, Marco 
M. Zardi & Co. S.A. Via Pioda 6
6900 Lugano
6900 Lugano (CH)

   


(54) Scroll fluid machine


(57) A scroll fluid machine comprises a fixed scroll (20) and an orbiting scroll that engages with the fixed scroll (20) to form a compression chamber between the fixed and orbiting scrolls. Near the outer circumference of the fixed and/or orbiting scroll, an annular dust-seal groove (27) is provided. In the groove, a dust seal fits to prevent a gas from coming into the compression chamber or from leaking out of the compression chamber. In the dust-seal groove (27), an annular holder (5) or piece is provided to prevent heat from transferring to the dust seal.







Search report