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:
Apr. 12, 2022
Filed:
Jan. 27, 2020
Esa S.p.a., Curno, IT;
Andrea Baio, Treviolo, IT;
Milco Dalfovo, Villa di Serio, IT;
ESA S.P.A., Curno, IT;
Abstract
A radiant tube recuperative burner assembly having a heat exchanger () and a burner (); said heat exchanger () comprises: a first inner tube (); a second heat exchanger tube () coaxial and external to the first tube (); a third tube () coaxial and external to said second tube (); a fourth tube () positioned perpendicular to said first tube (); a fifth tube () coaxial and internal to said fourth tube (); a flue gas outlet passage () positioned inside said fifth tube (); a first gap () between said first tube () and said second tube (); a second gap () between said third tube () and said second tube (); a sixth gap () between said fourth tube () and said fifth tube (); said first gap () communicates with said sixth gap (); said second gap () communicates with said flue gas outlet passage (); a Venturi tube () positioned transverse to said fifth tube (); the inlet of the Venturi tube () communicates with said sixth gap (); said Venturi tube () has an outlet that is in communication with said flue gas outlet passage (); and with a connection pipe () between said heat exchanger () and said burner ().