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:
Sep. 26, 1995
Filed:
Mar. 22, 1994
Applicant:
Inventor:
Peter Hofbauer, Rosrath-Hoffnungsthal, DE;
Assignee:
Viessmann Werke GmbH & Co., Allendorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
F23N / ;
U.S. Cl.
CPC ...
431-9 ; 431 12 ; 431 29 ; 431281 ;
Abstract
The present invention is concerned with a method of operating an oil evaporation burner for heating boilers which, for NOX reduction, are operated with an exhaust gas return from the combustion chamber of the heating boiler into the burner. In oil evaporation burners of the afore-described type the exhaust gas return during the start-up phase presents certain difficulties inasuch as the burner frequently goes off during the start-up phase. To overcome such difficulties the flow of exhaust gas as returned during the start-up phase is pneumatically discontinued by the formation of blocking curtains from air as supplied.