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  Burner with diffuser resistant to high operating temperaturesUSPTO Application #: 20070298361Title: Burner with diffuser resistant to high operating temperatures Abstract: A burner suppliable with a mixture of air and fuel, comprising a diffuser on which holes are made for the passage and subsequent combustion of said mixture, said diffuser being divided into a plurality of diffuser elements adjacent to one another, said diffuser elements are fixable to a support and distribution element provided with first coupling elements for coupling with said diffuser elements and with openings for distributing said mixture to said diffuser elements. (end of abstract) Agent: Nixon & Vanderhye, PC - Arlington, VA, US Inventors: Giuseppe Fogliani, Massimo Gilioli, Massimo Dotti USPTO Applicaton #: 20070298361 - Class: 431354000 (USPTO) Related Patent Categories: Combustion, Mixer And Flame Holder The Patent Description & Claims data below is from USPTO Patent Application 20070298361. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The present invention relates to a burner with a diffuser resistant to high operating temperatures, in particular to a premix burner. [0002] In the burners subject to high operating temperatures, such as for example the premix burners, the high thermal stresses can easily causes deformation and mechanical stresses on the diffuser of the burner, which may cause the diffuser to break. This drawback occurs with any form of diffuser of the burner, but has been shown to be particularly serious in burners with flat diffusers. In order to remedy the above drawback, it has been proposed to use special materials for making the diffuser of the burner, for example a metal mesh or a ceramic material. However, this results in a significant increase in the cost of the burner in the event of use of the metal mesh and significant fragility of the diffuser in the event of use of a ceramic material. [0003] It has also been proposed to divide the diffuser of the burner to reduce mechanical stresses arising from temperature variations during burner operation. Burners of this type are known from patent applications M02003A000180 and M02004A000031, in the name of the same applicant. [0004] In these patent applications burners are disclosed wherein the diffuser of the burner is divided into a plurality of diffuser elements that are adjacent to one another, that are free to expand in at least one direction. [0005] The burners disclosed in the aforementioned patent applications satisfactorily solve the problem of reducing the mechanical stresses generated by the temperature variations to which the diffuser is subjected during operation of the burner and by temperature differences between the various zones of the diffuser; nevertheless, said burners are complex to make and are relatively expensive. [0006] The present invention aims at providing burners of the aforementioned type with divided diffusers that are simpler and cheaper to make. [0007] According to the present invention a burner is provided that is suppliable with a mixture of air and fuel, comprising a burner body provided with a diffuser on which openings are made for the passage and subsequent combustion of said mixture, said diffuser being divided into a plurality of diffuser elements that are adjacent to one another, characterised in that said diffuser elements are fixed to a support and distribution element provided with first mechanical coupling means for coupling with said diffuser elements and with openings for distributing said mixture to said diffuser elements. [0008] Owing to the invention, the construction and assembly of the burner is significantly simplified, in as much as a same element acts as a support for the diffuser elements and as a distributor of the mixture to the diffuser elements and it is therefore no longer necessary to provide a distributing element for each diffuser element. Furthermore, fixing the diffuser elements to said support and distribution element is very simple and rapid to achieve, thus reducing considerably burner assembly time. [0009] Further advantages and features of the invention will be shown by the disclosure that follows that is given merely by way of non-limitative example with reference to the attached drawings, in which: [0010] FIG. 1 is a view from above of a burner according to the invention, with a substantially flat diffuser; [0011] FIG. 2 is a view from above of a support element of the diffuser of the burner in FIG. 1, that also acts as a distributing element of the mixture with which the burner is supplied; [0012] FIG. 3 is a view from above of a diffuser element of a burner according to the invention; [0013] FIGS. 4 and 5 are, respectively, a side view and a frontal view of the diffuser element of FIG. 3; [0014] FIG. 6 is a perspective view of the diffuser element of FIG. 3; [0015] FIG. 7 is a perspective view of a burner according to the invention, with a prismatic diffuser; [0016] FIG. 8 is an elevation view of the burner in FIG. 7; [0017] FIG. 9 is a plan view of the burner in FIG. 7; [0018] FIG. 10, is a perspective view of a further embodiment of a support and distribution element for a burner diffuser according to the invention; [0019] FIG. 11 is a perspective view of a burner diffuser made with the support and distribution element of FIG. 10; [0020] FIG. 12 is a perspective view of a still further embodiment of a support and distribution element for a burner diffuser according to the invention; [0021] FIG. 13 is a view from above of the support and distribution element in FIG. 12; [0022] FIG. 14 is a perspective view of a burner diffuser made with the support and distribution element in FIG. 12; [0023] FIG. 15 is a view from above of the burner diffuser in FIG. 14; [0024] FIG. 16 is a perspective view of another embodiment of a support and distribution element for a burner diffuser according to the invention; Continue reading... Full patent description for Burner with diffuser resistant to high operating temperatures Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Burner with diffuser resistant to high operating temperatures patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Burner with diffuser resistant to high operating temperatures or other areas of interest. ### Previous Patent Application: Self-contained candle system Next Patent Application: Increased tool utilization/reduction in mwbc for uv curing chamber Industry Class: Combustion ### FreshPatents.com Support Thank you for viewing the Burner with diffuser resistant to high operating temperatures patent info. 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