(19)
(11) EP 1 956 244 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.10.2008 Bulletin 2008/40

(43) Date of publication A2:
13.08.2008 Bulletin 2008/33

(21) Application number: 08001720.5

(22) Date of filing: 30.01.2008
(51) International Patent Classification (IPC): 
F04C 18/02(2006.01)
 F04C 29/02(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: 06.02.2007 JP 2007026620

(71) Applicant: Sanden Corporation
Isesaki-shi, Gunma 372-8502 (JP)

(72) Inventors:
  • Kobayashi, Noriyuki
    Gunma 372-8502 (JP)
  • Higashiyama, Akiyoshi
    Gunma 372-8502 (JP)

(74) Representative: Feldmeier, Jürgen et al
Prüfer & Partner GbR Patentanwälte Sohnckestrasse 12
81479 München
81479 München (DE)

   


(54) Scroll fluid machine


(57) A fluid machine(1) comprises a rotating shaft (12) extending in a cylindrical body part (3) of a closed container (2) and rotatably supported via a bearing (16), an electric motor (6) that drives the rotating shaft (12) by energization thereof, and has a rotor (7) and a stator (8), a scroll unit (30) accommodated above the electric motor (6), a frame member (14) that supports the rotating shaft (12) via the bearing (16), and flow-direction restricting means (80) that restricts a direction of lubrication oil flowing downward toward the electric motor (6) from the scroll unit (30) to inhibit the lubrication oil supplied from the reservoir (23) to the bearing (16) from flowing toward the stator (8). The flow-direction restricting means (80) includes a guide member (82) fixed to a top surface (7a) of the rotor (7) and guiding the downward-flowing lubrication oil to the top surface (7a), and a discharge passage (84) for causing the lubrication oil guided to the top surface (7a) to flow to the reservoir (23).







Search report