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Patent Searching and Data


Title:
METHOD FOR CONTROLLING A REGULATED-ROTATION-SPEED LOW-PRESSURE CENTRIFUGAL FAN
Document Type and Number:
WIPO Patent Application WO/2012/010741
Kind Code:
A3
Abstract:
Method for controlling an automatic stall-prevention of a rotation-speed- regulated centrifugal fan. What is essential in the invention is that the control automatics is controlled by means of the automation system of the process, in which control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.

Inventors:
MUSSALO JOUNI (FI)
VUOHELAINEN MAURI (FI)
Application Number:
PCT/FI2011/050633
Publication Date:
March 15, 2012
Filing Date:
July 04, 2011
Export Citation:
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Assignee:
RUNTECH SYSTEMS OY (FI)
MUSSALO JOUNI (FI)
VUOHELAINEN MAURI (FI)
International Classes:
F04D27/02; G05B15/02
Foreign References:
EP0179658A21986-04-30
US20090252617A12009-10-08
US20030057904A12003-03-27
DE102007035712A12009-02-05
US20080188173A12008-08-07
US4581900A1986-04-15
US5894736A1999-04-20
US4452585A1984-06-05
Other References:
See also references of EP 2630376A4
Attorney, Agent or Firm:
HEINÄNEN OY (Äyritie 8 D, Vantaa, FI)
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