EP 4193065 A1 20230614 - ECCENTRIC SCREW PUMP WITH A MODULAR DESIGN
Title (en)
ECCENTRIC SCREW PUMP WITH A MODULAR DESIGN
Title (de)
EXZENTERSCHNECKENPUMPE IN MODULARER BAUWEISE
Title (fr)
POMPE À CAVITÉ PROGRESSIVE PRÉSENTANT UNE STRUCTURE MODULAIRE
Publication
Application
Priority
- DE 102020114937 A 20200605
- DE 2021000103 W 20210601
Abstract (en)
[origin: WO2021244688A1] The invention relates to an eccentric screw pump with a rotor, which forms a conveyor screw, and a stator, which forms a screw thread and in which the rotor circulates during a conveying operation. The stator comprises a single-part or multipart stator housing, in which a stator lining made of an elastomer material is located, said lining forming the screw thread. The stator lining forms a projection at least on one side in the direction along the pump longitudinal axis, said projection protruding from the stator housing such that a free force introduction surface is formed. A force can be applied via the free force introduction surface, said force compressing the stator lining into the stator housing so that the stator lining is transversely elongated in the stator housing, leading to a constriction of the screw thread. The projection can be surrounded by a mobile support tube which is moved relative to the stator housing in the direction along the longitudinal axis of the stator housing for compression purposes.
IPC 8 full level
F04C 2/107 (2006.01)
CPC (source: EP US)
F04C 2/107 (2013.01 - EP); F04C 2/1073 (2013.01 - US); F04C 2/1075 (2013.01 - EP US); F04C 2240/10 (2013.01 - US); F04C 2240/802 (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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020114937 A1 20211209; AU 2021284794 A1 20230119; BR 112022023605 A2 20221220; CN 115917151 A 20230404; EP 4193065 A1 20230614; US 2023265847 A1 20230824; WO 2021244688 A1 20211209; ZA 202213097 B 20231129
DOCDB simple family (application)
DE 102020114937 A 20200605; AU 2021284794 A 20210601; BR 112022023605 A 20210601; CN 202180040084 A 20210601; DE 2021000103 W 20210601; EP 21736956 A 20210601; US 202118000760 A 20210601; ZA 202213097 A 20221202