Global Patent Index - EP 0734773 A3

EP 0734773 A3 2000-02-02 - Method for continuous optimization of the operating condition of an electrofilter

Title (en)

Method for continuous optimization of the operating condition of an electrofilter

Title (de)

Verfahren zum fortgesetzten Optimieren des Betriebszustandes eines Elektrofilters

Title (fr)

Méthode pour l'optimisation continu du régime de travail d'un électrofiltre

Publication

EP 0734773 A3 (DE)

Application

EP 96103433 A

Priority

DE 19511604 A

Abstract (en)

[origin: EP0734773A2] Continually optimising the operating condition of an electrostatic filter comprises: (a) operating with a direct voltage with superimposed pules, derived by full-wave rectification of the mains voltage, the time spacing between successive pulses being variable by screening a selectable number of full mains waves; (b) operating with a constant number of pulses in the normal phase and subsequent test phase of each of successive operating periods; (c) measuring the residual voltage during the normal and test phases in each of successive cycles (1,2,3...,k,...) at a given limitation of the current or voltage and iteratively varying the limitation, depending on the residual voltage change from cycle, so that the residual voltage tends towards a max.; and (d) operating the test phase of each operating period with a number of pulses differing by 1 from that in the normal phase, measuring and comparing the mean voltage values in the normal and test phases and, depending on the difference, iteratively varying the number of pulses from operating period to operating period such that the mean voltage value tends towards a max..

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

B03C 3/68

IPC 8 full level (invention and additional information)

B03C 3/68 (2006.01)

CPC (invention and additional information)

B03C 3/68 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT DE DK ES FR GB GR IT NL PT SE

EPO simple patent family

EP 0734773 A2 19961002; EP 0734773 A3 20000202; EP 0734773 B1 20011024; AT 207388 T 20011115; DE 19511604 A1 19961002; DE 19511604 C2 19990812

INPADOC legal status


2003-01-10 [REG FR ST] NOTIFICATION OF LAPSE

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- Document: DE 59607969 20011129

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