EP 1431583 A2 20040623 - Device for actuating electric pumps in liquid distribution systems
Title (en)
Device for actuating electric pumps in liquid distribution systems
Title (de)
Vorrichtung zur Betätigung von elektrischen angetriebenen Pumpen für Flüssigkeitsabgabesystem
Title (fr)
Dispositif d'activation de pompes électriques pour système de distribution de liquide
Publication
Application
Priority
IT PD20020330 A 20021220
Abstract (en)
A device for actuating electric pumps for water distribution systems, comprising a hollow hydraulic body (10), to be associated with an electric pump (11) with a single-phase electric motor, which forms internally a main duct (18) with end connectors (19, 20) for connection to the hydraulic system, the main duct (18) containing a flow-controlled switch (21), which cooperates with a pressure sensor (29) that is associated with the body (10) and is coupled to an electronic pressure reduction unit that operates by reducing the rotation rate of the motor according to a voltage variation chosen between one produced in the main winding and one in the electrical power supply line. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 49/20 (2006.01); F04D 15/00 (2006.01)
CPC (source: EP)
F04B 49/20 (2013.01); F04D 15/0066 (2013.01); F04B 2205/05 (2013.01); F04B 2205/09 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1431583 A2 20040623; EP 1431583 A3 20050727; EP 1431583 B1 20061018; AT E343066 T1 20061115; DE 60309123 D1 20061130; DE 60309123 T2 20070906; ES 2274162 T3 20070516; IT PD20020330 A1 20040621
DOCDB simple family (application)
EP 03027457 A 20031201; AT 03027457 T 20031201; DE 60309123 T 20031201; ES 03027457 T 20031201; IT PD20020330 A 20021220