| (19) |
 |
|
(11) |
EP 1 503 085 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
16.11.2005 Bulletin 2005/46 |
| (43) |
Date of publication A2: |
|
02.02.2005 Bulletin 2005/05 |
| (22) |
Date of filing: 21.07.2004 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
|
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Designated Extension States: |
|
AL HR LT LV MK |
| (30) |
Priority: |
30.07.2003 JP 2003282998
28.08.2003 JP 2003305542
|
| (71) |
Applicant: AISIN SEIKI KABUSHIKI KAISHA |
|
Kariya-shi,
Aichi-ken 448-8650 (JP) |
|
| (72) |
Inventor: |
|
- Deai, Junji
Kariya-shi
Aichi-ken, 448-8650 (JP)
|
| (74) |
Representative: Kramer - Barske - Schmidtchen |
|
European Patent Attorneys
Patenta
Radeckestrasse 43
81245 München
81245 München (DE) |
|
| |
|
(57) A pump device comprising a pump housing including a fluid chamber for inhaling a
fluid flowing through the fluid chamber via an intake port and discharging the fluid
to an outside via a discharge port, a motor housing including a stator, a shaft whose
one end projects into the pump housing and to which an impeller is assembled and whose
the other end is rotatably supported by a first bearing portion within the motor housing,
a rotor assembled to the shaft and facing the stator, and a bearing plate disposed
between the pump housing and the motor housing and including a second bearing portion
rotatably supporting the shaft characterized in that the bearing plate is formed by
a first fluid passage for leading the fluid to the bearing plate.