EP 4008903 B1 20230125 - ROTOR UNIT AND ECCENTRIC SCREW PUMP
Title (en)
ROTOR UNIT AND ECCENTRIC SCREW PUMP
Title (de)
ROTOREINHEIT UND EXZENTERSCHNECKENPUMPE
Title (fr)
UNITÉ DE ROTOR ET POMPE À VIS EXCENTRIQUE
Publication
Application
Priority
EP 20211922 A 20201204
Abstract (en)
[origin: WO2022117300A1] A rotor unit (27, 27A, 27B, 27C, 27D, 27E, 27F, 27G, 27H) for an eccentric screw pump (1), with a drive shaft (28) which can be driven with the aid of a drive element (29) of the eccentric screw pump (1), with a spiral rotor (30), and a flex-shaft (31) which connects the drive shaft (28) to the rotor (30), wherein the flex-shaft (31) is received at least in sections within the drive shaft (28), and wherein a gap (42) which runs around the flex-shaft (31) is provided between the flex-shaft (31) and the drive shaft (28), which gap (42) makes a radial movement of the flex-shaft (31) within the drive shaft (28) possible.
IPC 8 full level
F04C 2/107 (2006.01); F04C 15/00 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP US)
F04C 2/107 (2013.01 - US); F04C 2/1071 (2013.01 - US); F04C 2/1073 (2013.01 - EP); F04C 15/0003 (2013.01 - US); F04C 15/0065 (2013.01 - EP US); F04C 15/0073 (2013.01 - EP); F04C 2240/601 (2013.01 - US)
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)
EP 4008903 A1 20220608; EP 4008903 B1 20230125; CN 116806290 A 20230926; US 12018687 B2 20240625; US 2023417241 A1 20231228; WO 2022117300 A1 20220609
DOCDB simple family (application)
EP 20211922 A 20201204; CN 202180091455 A 20211110; EP 2021081274 W 20211110; US 202118039932 A 20211110