Gas burner with only an internal flame

• US 20060063119A1
• Filed: 09/19/2005
• Published: 03/23/2006
• Est. Priority Date: 09/17/2004
• Status: Active Grant

• Current Assignee: Gaz de France
• Original Assignee: Gaz de France
• Inventors: Molla, Jean-Claude
• Granted Patent: US 7,819,657 B2
• Time in Patent Office: Days
• US Class Current: 431/354
• CPC Class Codes: F23D 14/065 with injector axis inclined to the burner head axis
• CPC Class Codes: F23D 14/70 Baffles or like flow-disturbing devices

Abstract

This burner comprises a pot (1) provided with an inlet (29) for a mixture to be burnt and a cap (3) that sits on top of this pot (1).

This pot (1) and this cap (3) define a central zone (11) for combustion of said mixture to be burnt, and a peripheral chamber (13) that extends around said central zone (11) and communicates with said inlet (29).

A plurality of passageways (17) allow said mixture to flow from said peripheral chamber (13) into said central zone (11).

This burner further includes a deflector (5) that separates, in a non-leaktight manner, said chamber (13) into a lower subchamber (25), located substantially in the extension of said inlet (29), and into an upper subchamber (27) adjacent said passages.

Claims

1. A gas burner with only an internal flame, of the type comprising:

a pot provided with an inlet for the mixture to be burnt; and

a cap that sits on top of said pot,

said pot and said cap defining;

a central zone for combustion of said mixture to be burnt; and

a peripheral chamber that extends around said central zone and communicates with said inlet,

said burner further comprising;

a plurality of passageways for making said mixture flow from said peripheral chamber toward said central zone; and

a deflector that extends into at least part of said chamber, this deflector being placed so as to separate said chamber into a lower subchamber, located approximately in the extension of said inlet, and into an upper subchamber adjacent said passageways, and to provide a passage with the radially external wall of said peripheral chamber.

2. The burner as claimed in claim 1, wherein said deflector extends over the entire perimeter of said peripheral chamber.

3. The burner as claimed in claim 1, wherein said central zone is circular and said deflector is annular.

4. The burner as claimed in claim 1, wherein said deflector is fastened to a circular shoulder of said pot.

5. The burner as claimed in claim 1, wherein the radial width of said passage is approximately equal to half the radial width of said peripheral chamber.

6. The burner as claimed in claim 1, in which said inlet opens into said peripheral chamber beneath said deflector.

7. The burner as claimed in claim 1, wherein said inlet penetrates slightly into said peripheral chamber.

8. The burner as claimed in claim 1, wherein the cross section of said peripheral chamber decreases upon going away from said inlet.

9. The burner as claimed in claim 8, wherein said decrease stems from a progressively increasing rise in the bottom of said pot upon going away from said inlet.

10. The burner as claimed in claim 8, wherein said decrease stems from an offset between the axes of the radially inner and outer walls of said peripheral chamber.

11. The burner as claimed in claim 1, wherein said cap includes a skirt connected to a ring provided with radial slots.

12. The burner as claimed in claim 11, wherein the radial inner and outer walls of said ring are inscribed on inverted cones, the apexes of which are above and below the burner respectively.

13. The burner as claimed in claim 11, which includes a removable casing that rests on said skirt via supports.