(19)
(11) EP 0 743 455 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.06.1997 Bulletin 1997/24

(43) Date of publication A2:
20.11.1996 Bulletin 1996/47

(21) Application number: 96106922.6

(22) Date of filing: 02.05.1996
(51) International Patent Classification (IPC)6: F04C 18/02
(84) Designated Contracting States:
DE FR NL

(30) Priority: 19.05.1995 JP 121869/95

(71) Applicant: MITSUBISHI JUKOGYO KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Sato, Kazuhiro, c/o Nagoya Res. & Dev. Ctr
    Nakamura-ku, Nagoya-shi, Aichi-ken (JP)
  • Kobayashi, Hiroyuki, c/o Nagoya Res. & Dev. Ctr
    Nakamura-ku, Nagoya-shi, Aichi-ken (JP)
  • Hirooka, Katsumi, c/o Air Con&Ref Machinery Works
    Nishi-Kasugai-gun, Aichi-ken (JP)

(74) Representative: Henkel, Feiler, Hänzel & Partner 
Möhlstrasse 37
81675 München
81675 München (DE)

   


(54) Scroll type fluid machine


(57) Object: To provide a scroll type fluid machine which can suppress increase of inclining vibrations of an Oldham ring with facilitated adjustments.
Construction: A stationary scroll (1) and a swivel scroll (2), in a pair, are engaged with each other and said swivel scroll (2) is driven to make revolutional motions, while prevented from making rotations, via an Oldham ring (18) disposed between an end plate (6) of said swivel scroll (2) and a frame (10) and, where a distance between said end plate (6) of the swivel scroll (2) and said frame (10) is s and a thickness of a ring portion (19) of said Oldham ring (18) is t, a gap δ, formed as (s-t), to a radius r of said ring portion (19) of the Oldham ring (18) is set so that δ/r is 0.01 or less. Thus, only by the ring portion (19) of the Oldham ring (18) being adjusted of its thickness, increase of inclining vibrations of an Oldham ring (18) can be suppressed.






Search report