Detecting blockage of a duct of a burner assembly

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11231174
APP PUB NO 20180274782A1
SERIAL NO

15934186

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Abstract

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The present disclosure deals with the detection of a blockage in the air-supply duct or flue of a burner assembly. In some embodiments, a method or system may detect blockages in the form of coverings and with burner assemblies to burn fossil fuels. For example, a control device may generate: a first air-control signal; a fuel-control signal by adjusting the actual values of the ionization current to the ionization-current setpoint; a setpoint increased by a specified amount from the ionization-current setpoint; and a changed fuel-control signal by adjusting the actual values of the ionization current to the increased setpoint in the case of a first air-control signal. The control device may evaluate the changed fuel-control signal generated based on the increased setpoint by comparing it with a specified maximum value and based on the evaluation, to detect a blockage. The control device may recognize the blockage based on the evaluation if the fuel-control signal generated using the increased setpoint exceeds the specified maximum value.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS AKTIENGESELLSCHAFTWERNER-VON-SIEMENS-STRASSE 1 MUENCHEN 80333

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holfelder, Holger Gaggenau, DE 1 2
Lochschmied, Rainer Rheinstetten-Forchheim, DE 20 142
Schmiederer, Bernd Karlsruhe, DE 13 48

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