The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2020
Filed:
Nov. 11, 2016
Viessmann Werke Gmbh & Co. KG, Allendorf, DE;
Viessmann Werke GmbH & Co. KG, Allendorf, DE;
Abstract
The present invention relates to a method for controlling a heating unit comprising a burner () with a burner housing (), an ionization electrode () associated with the burner (), and a voltage supply () for applying an alternating voltage between the ionization electrode () and the burner housing (), said method comprising the method steps: applying an alternating voltage between the ionization electrode () and the burner housing () by means of the voltage supply () and correcting the output of the voltage supply () in the event of parasitic leakage flows. The object of the present invention is in particular to improve the reliability when ascertaining the air-fuel ratio via the ionization current.