EP 2140142 B1 20100804 - GEAR PUMP
Title (en)
GEAR PUMP
Title (de)
ZAHNRADPUMPE
Title (fr)
POMPE À ENGRENAGE
Publication
Application
Priority
- EP 2008053968 W 20080402
- DE 102007020703 A 20070503
Abstract (en)
[origin: WO2008135326A1] The invention relates to a gear pump having two meshing gear wheels (4, 5) configured of a driven gear wheel (4) and a gear wheel (5) moving along with the same. A rotatably supported drive shaft (7) is provided for driving the gear wheel, the shaft being held in the pump housing (1) by bearing means (8.2). A sealing means (9.2) is associated with the drive shaft (7) at the circumference between the gear wheel and the bearing means, the sealing means comprising a pressure ring (10.2) resting against a face of the gear wheel. In order to prevent the gear wheel in the pump housing from starting to run, a second sealing means (9.1) having a second pressure ring (10.1) is disposed on the opposite face of the gear wheel (4) at the circumference of the drive shaft (7) between a second bearing means (8.1) and the gear wheel (4), wherein both pressure rings (10.1, 10.2) have a sealing shoulder (16.1, 16.2) opposite the gear wheel (4), the shoulder being pressed against the face of the gear wheel under the action of a spring means.
IPC 8 full level
F04C 15/00 (2006.01); F04C 2/18 (2006.01)
CPC (source: EP US)
F04C 15/0026 (2013.01 - EP US); F04C 15/0038 (2013.01 - EP US); F04C 2/18 (2013.01 - EP US); F04C 2220/24 (2013.01 - EP US)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
WO 2008135326 A1 20081113; AT E476600 T1 20100815; DE 502008001091 D1 20100916; EP 2140142 A1 20100106; EP 2140142 B1 20100804; ES 2349495 T3 20110104; US 2010196186 A1 20100805
DOCDB simple family (application)
EP 2008053968 W 20080402; AT 08735717 T 20080402; DE 502008001091 T 20080402; EP 08735717 A 20080402; ES 08735717 T 20080402; US 59832208 A 20080402