EP 3067564 B1 20190206 - Circulation pump
Title (en)
Circulation pump
Title (de)
Umwälzpumpenaggregat
Title (fr)
Groupe motopompe de circulation
Publication
Application
Priority
EP 15158261 A 20150309
Abstract (en)
[origin: CN105952653A] The invention relates to a circulation pump unit comprising an electric drive motor (10, 16), at least one impeller (6) driven by the electric drive motor (10, 16), and an electronic control device which controls the drive motor (10, 16), wherein the control device (22) has at least one first fluid detection function (A1), in which the control device (22) controls the drive motor (10, 16) such that it rotates successively with at least two different rotational speeds or in different rotational directions (CW, CCW) . The control device (22) separately senses the electrical power consumption (P) and detects at least one property of the fluid in the impeller (6) on the basis of an evaluation of the detected electrical power receptacles (P) for the different rotational speeds or rotational directions (CW, CCW). The invention also provides a method for operating such a circulating pump unit.
IPC 8 full level
F04D 15/00 (2006.01); F04D 15/02 (2006.01)
CPC (source: CN EP)
F04D 13/021 (2013.01 - EP); F04D 13/06 (2013.01 - CN); F04D 15/00 (2013.01 - CN); F04D 15/0066 (2013.01 - EP); F04D 15/0088 (2013.01 - EP); F04D 15/0218 (2013.01 - EP); F04D 29/061 (2013.01 - CN)
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)
EP 3067564 A1 20160914; EP 3067564 B1 20190206; CN 105952653 A 20160921; CN 105952653 B 20190514
DOCDB simple family (application)
EP 15158261 A 20150309; CN 201610133121 A 20160309