Mixing device for mixing fuel and air and furnace with a mixing device

a mixing device and fuel technology, applied in the field of premix burners, furnaces, can solve the problems of nox production of a certain amount of nitrogen oxides

Inactive Publication Date: 2012-07-19
NORDYNE
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such processes, however, have resulted in the production of a certain amount of oxides of Nitrogen (NOx) during the combustion process.
But premix burners have been plagued with noise resulting in oscillations of combustion and flow that have prevented premix burners from becoming workable in furnaces for occupied structures.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixing device for mixing fuel and air and furnace with a mixing device
  • Mixing device for mixing fuel and air and furnace with a mixing device
  • Mixing device for mixing fuel and air and furnace with a mixing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027]This invention provides, among other things, mixing devices for mixing fuel and air, furnaces (e.g., for heating an occupied space), HVAC units, HVAC systems, methods, and buildings, many of which reduce NOx formation (e.g., in comparison with various alternatives), reduce noise, or both. Various embodiments provide, for example, as an object or benefit, that they partially or fully address or satisfy one or more of the needs, potential areas for benefit, or opportunities for improvement described herein, or known in the art, as examples. Certain embodiments provide, for example, devices or apparatuses that produce less pollution, such as NOx emissions, from furnaces, for example, that provide an acceptable level of noise or that produce less noise, or a combination thereof, as examples.

[0028]In addition, particular embodiments provide, as objects or benefits, for instance, furnaces, HVAC units, and methods (e.g., of controlling premix burners) that produce less pollution such...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Mixing devices for mixing fuel and air for a premix burner or furnace and furnaces (e.g., premix) with mixing devices. Furnaces may be for heating an occupied space, and may produce lower NOx emissions. A mixing device may be located within an inlet tube, may have a surface that is perpendicular to the direction of fuel flow or that forms a circle, or may have two surfaces held at substantially opposite angles to induce swirl. A portion of the mixing device may extend over an orifice of the fuel injector. A mixing device may be attached to the fuel injector, may be made from a piece of sheet metal, and may have a hole for attachment to the fuel injector. Mixing devices may have a center, two arms, and two ends, which may be separated by bends. A burner plate may be sandwiched between surfaces to allow for expansion.

Description

RELATED PATENT APPLICATIONS[0001]This patent application claims priority to U.S. patent application Ser. No. 12 / 793,318, filed on Jun. 3, 2010, titled PREMIX FURNACE AND METHODS OF MIXING AIR AND FUEL AND IMPROVING COMBUSTION STABILITY, naming four of the same inventors and having the same assignee as listed above, which claims priority to Provisional Patent Application No. 61 / 183,934, filed on Jun. 3, 2009, titled LOW NOx FURNACE AND METHODS OF MAKING AND CONTROLLING SAME, naming four of the same inventors that are listed above. The contents of both of these priority patent applications are incorporated herein by reference. Certain terms, however, may be used differently in the Provisional Patent Application.FIELD OF THE INVENTION[0002]This invention relates to premix burners, furnaces, and methods of making and improving such things. Particular embodiments concern fuel burner systems and furnaces that produce less NOx emissions than alternative burners or furnaces.BACKGROUND OF TH...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): F24H3/06F23D14/02F23D14/62
CPCF23D14/58F23D14/64F23D2900/14482F23D2203/102F23D2210/00F23D14/70
Inventor REIFEL, ALLAN J.HOEFFKEN, RUSSELL W.RALEIGH, WILLIAM F.HERZON, AARON D.
Owner NORDYNE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap