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. 02, 1986
Filed:
Feb. 15, 1985
Toivo Karna, Porvoo, FI;
Neste Oy, , FI;
Abstract
The present invention concerns an ignition device for igniting fuel within a heating boiler having a combustion section operating according to the fluidized bed principle. The ignition device comprises a jacket-like body portion with a surface facing away from the fluidized bed of particles such as sand being furnished with a heating member, and the surface of the jacket-like body portion facing the fluidized bed of particles having heat transfer elements. The heat transfer elements may be rib-shaped, while a lagging or equivalent structure may encircle the ignition device, to form an intermediate space therebetween through which combustion gas is arranged to flow into the jacket-like body portion. A member for pre-heating the combustion gas flowing through this intermediate space, may also be provided, which is in turn cooled by the inflowing combustion gas.