EP 3500732 B1 20200415 - PUMPING UNIT
Title (en)
PUMPING UNIT
Title (de)
FÖRDERAGGREGAT
Title (fr)
UNITÉ DE REFOULEMENT
Publication
Application
Priority
- DE 102016215474 A 20160818
- EP 2017064621 W 20170614
Abstract (en)
[origin: WO2018033273A1] Pumping assemblies are already known, comprising a drive shaft and a rotor rotatably arranged in a pump stator and driven by the drive shaft. The drive shaft has an oblique sliding plane which cooperates with the rotor and which permits the rotor to wobble about a drive axis of the drive shaft by the rotor axis thereof. The rotor has a toothing on the end side thereof facing away from the drive shaft, which engages with a toothing formed on the pump stator. Work spaces are formed between the toothing of the rotor and the toothing of the pump stator in order to pump pumping media. The drive shaft, the rotor and the pump stator are individual pump components which, in cooperation, have determined properties to fulfill, such as flow rate, effectiveness and pressure build-up, within determined tolerances. Whether the pump components together can fulfill these required properties can only be tested in a function test on the finished product, i.e. after the complete construction of the pump assembly. For the pump assembly according to the invention, the production costs are reduced. According to the invention, the drive shaft (2) is arranged in a bearing bushing (24) having a shoulder (31) protruding in a radial direction in relation to the drive axis (7), on which shoulder the pump stator (3) is retained by means of at least one retaining means (27).
IPC 8 full level
F01C 21/02 (2006.01); F04C 3/08 (2006.01); F04C 11/00 (2006.01)
CPC (source: EP KR)
F01C 21/02 (2013.01 - EP KR); F04C 3/08 (2013.01 - EP KR); F04C 11/008 (2013.01 - EP KR); F04C 2240/40 (2013.01 - EP KR); F04C 2240/56 (2013.01 - EP KR); F04C 2240/605 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102016215474 A1 20180222; CN 109563739 A 20190402; CN 109563739 B 20210430; EP 3500732 A1 20190626; EP 3500732 B1 20200415; KR 20190034673 A 20190402; WO 2018033273 A1 20180222
DOCDB simple family (application)
DE 102016215474 A 20160818; CN 201780050434 A 20170614; EP 17731127 A 20170614; EP 2017064621 W 20170614; KR 20197007317 A 20170614