EP 3973185 A1 20220330 - PROGRESSIVE CAVITY PUMP
Title (en)
PROGRESSIVE CAVITY PUMP
Title (de)
EXZENTERSCHNECKENPUMPE
Title (fr)
POMPE À CAVITÉ PROGRESSIVE
Publication
Application
Priority
- DE 102019130981 A 20191115
- EP 2020080251 W 20201028
Abstract (en)
[origin: WO2021094087A1] The invention relates to a progressive cavity pump, comprising at least: a stator (1); a rotor (2), which rotates in the stator (1); a drive (3); a pump housing (4), which is connected to the stator (1) and has at least one inlet opening or outlet opening for the medium to be conveyed; a connecting shaft (9), which is driven by the drive and rotates centrally about an axis (R) in ideal operation of the pump; a coupling rod (10), which is arranged, for example, in the pump housing (4), is articulated at the drive-side end to the connecting shaft (9) and is articulated at the rotor-side end to the rotor (2), and produces an eccentric motion of the rotor end (7) when the connecting shaft (9) rotates centrally. Said pump is characterized in that at least one sensor (15, 16) is arranged in the region of the connecting shaft (9) in order to detect or measure a deviation from true running, which sensor determines a motion profile of the connecting shaft (9) at a specified angular position of the connecting shaft by virtue of the fact that the distance of the surface of the connecting shaft (9) from the sensor (15, 16) is measured.
IPC 8 full level
F04C 2/107 (2006.01); F04C 14/28 (2006.01)
CPC (source: EP US)
F04C 2/107 (2013.01 - US); F04C 2/1071 (2013.01 - EP US); F04C 2/1073 (2013.01 - EP); F04C 2/1075 (2013.01 - EP); F04C 14/28 (2013.01 - EP US); F04C 2270/86 (2013.01 - EP 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
DOCDB simple family (publication)
DE 102019130981 A1 20210520; CN 114341497 A 20220412; CN 114341497 B 20240611; EP 3973185 A1 20220330; US 11841017 B2 20231212; US 2022356877 A1 20221110; WO 2021094087 A1 20210520
DOCDB simple family (application)
DE 102019130981 A 20191115; CN 202080060764 A 20201028; EP 2020080251 W 20201028; EP 20800069 A 20201028; US 202017619877 A 20201028