EP 2964957 B1 20171122 - PROGRESSIVE CAVITY PUMP WITH OVERPRESSURE PROTECTION
Title (en)
PROGRESSIVE CAVITY PUMP WITH OVERPRESSURE PROTECTION
Title (de)
EXZENTERSCHNECKENPUMPE MIT ÜBERDRUCKSCHUTZ
Title (fr)
POMPE À CAVITÉ PROGRESSIVE AVEC PROTECTION CONTRE UNE SURPRESSION
Publication
Application
Priority
- DE 102013003833 A 20130307
- EP 2014000320 W 20140206
Abstract (en)
[origin: WO2014135239A1] Eccentric screw pump having an outer part (2) and an inner part (3) arranged therein, of which one part (2, 3) is driven rotatably and one part (2, 3) can perform an eccentric movement with respect to the other part (3, 2). The thread turns (5a, 5b) of the outer part (2) are wound along the axial length (L) thereof by less than one whole helix, with the result that, during operation, conveying chambers are produced which are open on both sides and by way of which sudden decompressions take place.
IPC 8 full level
F04C 2/107 (2006.01); F04C 14/28 (2006.01)
CPC (source: EP US)
F01C 1/10 (2013.01 - US); F04C 2/1075 (2013.01 - EP US); F04C 2/1076 (2013.01 - US); F04C 14/28 (2013.01 - EP US); F04C 2250/30 (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
DOCDB simple family (publication)
DE 102013003833 A1 20140911; CN 105121853 A 20151202; CN 105121853 B 20161130; EP 2964957 A1 20160113; EP 2964957 B1 20171122; PL 2964957 T3 20180430; US 2016003244 A1 20160107; US 9920758 B2 20180320; WO 2014135239 A1 20140912
DOCDB simple family (application)
DE 102013003833 A 20130307; CN 201480022381 A 20140206; EP 14715204 A 20140206; EP 2014000320 W 20140206; PL 14715204 T 20140206; US 201414769351 A 20140206