Title:
METHOD FOR CONTROLLING THE ELECTRIC MOTOR OF A METERING PUMP
Document Type and Number:
WIPO Patent Application WO2002004811
Kind Code:
A3
Abstract:
The invention relates to a method for controlling the electric motor of a metering pump, wherein the amount of fluid (Vsoll) to be delivered is determined by an external impulse generator, every impulse (t) being associated with a predetermined amount of fluid (Vsoll). The control detects the interval ( DELTA t) of the two impulses (t) received last and controls the electric motor in such a manner that the amount of fluid to be delivered is evenly distributed across the subsequent impulse interval based on the interval previously detected.
Inventors:
SOLGAARD KURT (DK)
KRAGELUND BO (DK)
KRAGELUND BO (DK)
Application Number:
PCT/IB2001/001767
Publication Date:
June 20, 2002
Filing Date:
July 11, 2001
Export Citation:
Assignee:
GRUNDFOS AS (DK)
SOLGAARD KURT (DK)
KRAGELUND BO (DK)
SOLGAARD KURT (DK)
KRAGELUND BO (DK)
International Classes:
F04B49/00; F04B13/00; F04B49/06; G01F11/02; G01F13/00; (IPC1-7): F04B13/00; F04B49/06
Foreign References:
DE19623537A1 | 1997-12-18 | |||
US4326837A | 1982-04-27 | |||
US4624625A | 1986-11-25 |
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