Gas burner

• US 20050112520A1
• Filed: 09/02/2004
• Published: 05/26/2005
• Est. Priority Date: 09/05/2003
• Status: Active Grant

• Current Assignee: Electrolux Home Products Incorporated (AB Electrolux)
• Original Assignee: Electrolux Home Products Incorporated (AB Electrolux)
• Inventors: Starnini, Marco, Strada, Stefano, Todoli, Silvano
• Granted Patent: US 7,040,890 B2
• Time in Patent Office: Days
• US Class Current: 431/349
• CPC Class Codes: F23D 14/06 with radial outlets at the burner head
• CPC Class Codes: F23D 14/065 with injector axis inclined to the burner head axis
• CPC Class Codes: F23D 14/583 of elongated shape, e.g. slits
• CPC Class Codes: F23D 14/74 Preventing flame lift-off
• CPC Class Codes: F23D 2209/20 Flame lift-off / stability

Abstract

The present invention refers to a gas burner, in particular for domestic cooking appliances, comprising a bowl-shaped body (10) associated with a gas injector (11), a toothed crown (12) with a plurality of flame ports (13) placed over said body, and an upper cap (14) to close the burner top.

The burner is characterised in that a peripheral grove (15) is formed on at least a part of the external surface of the toothed crown (12), in order to increase the flame stability.

Claims

1. Gas burner, in particular for a domestic cooker, comprising a bowl-shaped body (10) associated with a gas injector (11), a toothed crown (12) with a plurality of flame ports (13) placed over said body and an upper cap (14) to close the burner top, characterised in that a peripheral step (15) is formed on at least a part of the external surface of the toothed crown (12).

2. Gas burner according to claim 1, characterised in that said peripheral step (15) is formed at a level lower than that of the flame ports (13).

3. Gas burner according to claim 1, characterised in that said peripheral step (15) has a smooth surface.

4. Gas burner according to claim 1, characterised in that said peripheral step (15) is at least partially crossed by radial grooves (16) connected with corresponding flame ports (13) of the toothed crown (12).

5. Gas burner according to claim 1, characterised in that the upper cap (14) has substantially the same diameter of the toothed crown (12).

6. Gas burner according to claim 2, characterised in that said peripheral step (15) has a smooth surface.

7. Gas burner according to claim 2, characterised in that said peripheral step (15) is at least partially crossed by radial grooves (16) connected with corresponding flame ports (13) of the toothed crown (12).

8. Gas burner according to claim 2, characterised in that the upper cap (14) has substantially the same diameter of the toothed crown (12).

9. Gas burner according to claim 3, characterised in that the upper cap (14) has substantially the same diameter of the toothed crown (12).

10. Gas burner according to claim 4, characterised in that the upper cap (14) has substantially the same diameter of the toothed crown (12).