Global Patent Index - EP 1082645 A1

EP 1082645 A1 2001-03-14 - METHOD FOR CALIBRATING THE SPEED OF AN ELECTRIC PUMP-DRIVE MOTOR

Title (en)

METHOD FOR CALIBRATING THE SPEED OF AN ELECTRIC PUMP-DRIVE MOTOR

Title (de)

VERFAHREN ZUR KALIBRIERUNG DER DREHZAHLREGELUNG EINES ELEKTROMOTORS ZUM ANTRIEB EINER PUMPE

Title (fr)

PROCEDE D'ETALONNAGE DE LA REGULATION DE LA FREQUENCE DE ROTATION D'UN MOTEUR ELECTRIQUE POUR L'ENTRAINEMENT D'UNE POMPE

Publication

EP 1082645 A1 (DE)

Application

EP 99917737 A

Priority

  • CH 9900212 W
  • CH 112498 A
  • CH 241998 A

Abstract (en)

[origin: WO9961964A1] The inventive method regulates the speed of an electric motor that drives a conveyor unit for liquid or gaseous media e.g. a rotatory machine in the form of a pump or ventilator. The speed of the motor is regulated to meet chronologically variable energy requirements on the user side. The speed of the electric motor is determined by the output variable of a regulator. The current intensity received by the electric motor is measured and a signal representing each respective current intensity is generated and fed to the regulator as an input variable. The input variables are automatically calibrated in the regulator. This dispenses with fluidic sensors or long measuring sections. No detection of system characteristics is required either. This simplifies operation of said system, reduces costs and uses energy in an economical manner. The inventive method also provides highly efficient and stable regulation.

IPC 1-7 (main, further and additional classification)

G05D 7/06; F04B 49/06; F04D 15/00

IPC 8 full level (invention and additional information)

F04B 49/06 (2006.01)

CPC (invention and additional information)

F04B 49/065 (2013.01); F04D 15/0066 (2013.01); F04B 2201/1201 (2013.01); F04B 2203/0201 (2013.01); F04B 2203/0209 (2013.01)

Citation (search report)

See references of WO 9961964A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IT LI LU NL PT SE

EPO simple patent family

WO 9961964 A1 19991202; AU 3593399 A 19991213; EP 1082645 A1 20010314; HU 0101477 A2 20010928; HU 0101477 A3 20020328; PL 344453 A1 20011105; SK 17382000 A3 20011008

INPADOC legal status


2003-07-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021203

2001-07-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010605

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001221

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IT LI LU NL PT SE

2001-03-14 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: SI PAYMENT 20001221