EP 2663774 B1 20160330 - METHOD FOR OPERATING A PUMP THAT IS DRIVEN BY AN ELECTRIC MOTOR IN A POWER-OPTIMIZED MANNER IN THE EVENT OF LOW VOLUMETRIC FLOW RATES
Title (en)
METHOD FOR OPERATING A PUMP THAT IS DRIVEN BY AN ELECTRIC MOTOR IN A POWER-OPTIMIZED MANNER IN THE EVENT OF LOW VOLUMETRIC FLOW RATES
Title (de)
VERFAHREN ZUM LEISTUNGSOPTIMIERTEN BETREIBEN EINER ELEKTROMOTORISCH ANGETRIEBENEN PUMPE BEI GERINGEN VOLUMENSTRÖMEN
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT À RENDEMENT OPTIMISÉ D'UNE POMPE ENTRAÎNÉE PAR MOTEUR ÉLECTRIQUE LORS DE FAIBLES DÉBITS VOLUMÉTRIQUES
Publication
Application
Priority
- DE 102011008165 A 20110110
- EP 2012000001 W 20120102
Abstract (en)
[origin: WO2012095274A2] The invention relates to a method for operating a pump that is driven by an electric motor in a hydraulic system in a power-optimized manner in the event of very low volumetric flow rates (Q). The target delivery head (H) of the pump is regulated along a preset characteristic curve (K) dependent on the volumetric flow rate (Q). The target delivery head (H) is reduced compared to the preset characteristic curve (K) if the volumetric flow rate (Q) falls short of a reference value (Q_ref) that is maximally a tenth, preferably a twentieth of the maximum volumetric flow rate (Q_max) on the characteristic curve (K). The reduction is carried out as long as the volumetric flow rate (Q) lies below the volumetric flow rate reference value (Q_ref) and a delivery head minimum value (H_min) has not been reached. The invention further relates to a pump that is driven by an electric motor, comprising a control and regulating electronic system that is equipped to carry out said method, and to a computer program product with instructions for carrying out the method for operating a pump that is driven by an electric motor when said method is carried out in a control and regulating electronic system of the pump.
IPC 8 full level
F04B 49/20 (2006.01); F04C 14/08 (2006.01); F04D 15/00 (2006.01)
CPC (source: EP)
F04B 17/03 (2013.01); F04B 49/065 (2013.01); F04B 49/20 (2013.01); F04C 14/08 (2013.01); F04D 15/0066 (2013.01); F04B 2203/02 (2013.01); F04B 2205/09 (2013.01); F04B 2207/0411 (2013.01); F04B 2207/0412 (2013.01)
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)
WO 2012095274 A2 20120719; WO 2012095274 A3 20130502; CN 103299076 A 20130911; CN 103299076 B 20150408; DE 102011008165 A1 20120712; EP 2663774 A2 20131120; EP 2663774 B1 20160330; RU 2013137441 A 20150220; RU 2553630 C2 20150620
DOCDB simple family (application)
EP 2012000001 W 20120102; CN 201280004962 A 20120102; DE 102011008165 A 20110110; EP 12706187 A 20120102; RU 2013137441 A 20120102