Gas burner assembly

Patent metadata

Field	Value
Publication number	US-10451273-B2
Application number	US-201615539540-A
Country	US
Kind code	B2
Filing date	Jan 19, 2016
Priority date	Feb 5, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

The present invention relates to a gas burner assembly ( 10 ), in particular for a gas cooking hob, comprising a burner cap ( 12 ), a burner crown ( 14 ) and a burner body ( 16 ). The burner cap ( 12 ) is arranged or arrangeable upon the burner crown ( 14 ). The burner crown ( 14 ) is arranged or arrangeable upon the burner body ( 16 ). The gas burner assembly ( 10 ) comprises at least one elongated horizontal Venturi pipe ( 32, 34 ). An upper part ( 32 ) of the Venturi pipe is formed in a lower portion of the burner crown ( 14 ). A lower part ( 34 ) of the Venturi pipe ( 32 ) is formed in the burner body ( 16 ). At least one chamber ( 46, 52 ) is formed in an upper portion of the burner crown ( 14 ). The burner crown ( 14 ) includes at least one circumferential wall ( 22, 24 ) enclosing the at least one chamber ( 46, 52 ) and including a plurality of flame ports ( 26, 28 ). The burner crown ( 14 ) includes at least one passage opening ( 38 ) connecting an outlet of the Venturi pipe ( 32, 34 ) to the at least one chamber ( 46, 52 ). The Venturi pipe is formed by its upper part ( 32 ), its lower part ( 34 ) and the passage opening ( 38 ). A horizontal gap ( 60 ) is formed between the burner crown ( 14 ) and the burner body ( 16 ), wherein the horizontal gap ( 60 ) is provided as an inlet for primary air ( 56 ) and secondary air ( 58 ).

First claim

The invention claimed is:

1. A gas burner assembly for a gas cooking hob, comprising a burner cap, a burner crown and a burner body, wherein
the burner cap is arranged or arrangeable upon the burner crown,
the burner crown is arranged or arrangeable upon the burner body,
the gas burner assembly comprises at least one elongated horizontal Venturi pipe,
an upper part of the Venturi pipe is formed in a lower portion of the burner crown,
a lower part of the Venturi pipe is formed in the burner body,
at least one chamber is formed in an upper portion of the burner crown,
the burner crown includes at least one circumferential wall enclosing the at least one chamber and including a plurality of flame ports,
the burner crown includes at least one passage opening connecting an outlet of the Venturi pipe to the at least one chamber,
the Venturi pipe is formed by its upper part, its lower part and the passage opening, and
a horizontal gap is formed between the burner crown and the burner body, wherein
the horizontal gap is provided as an inlet for primary air and secondary air.

2. The gas burner assembly according to claim 1 , wherein the gas burner assembly is inserted in or insertable into a sheet of the gas cooking hob, wherein the horizontal gap is arranged above said sheet, so that the primary air and secondary air are caught from the space above the sheet of the gas cooking hob.

3. The gas burner assembly according to claim 1 , wherein the burner crown includes at least one annular chamber and/or a cylindrical chamber.

4. The gas burner assembly according to claim 3 , wherein the cylindrical chamber is arranged inside the annular chamber, wherein the cylindrical chamber and the annular chamber are spaced from each other and arranged at the same level.

5. The gas burner assembly according to claim 4 , wherein the annular chamber is enclosed by an outer circumferential wall including a plurality of external flame ports, and the cylindrical chamber is enclosed by an inner circumferential wall including a plurality of internal flame ports.

6. The gas burner assembly according to claim 4 , wherein the cylindrical chamber and the annular chamber are interconnected via a conduit arranged at the same level as the cylindrical chamber and the annular chamber.

7. The gas burner assembly according to claim 6 , wherein the burner cap covers the cylindrical chamber, the annular chamber and conduit.

8. The gas burner assembly according to claim 1 , wherein the burner body includes a gas inlet arranged at an outer side of said burner body and a gas injector arranged inside said burner body, wherein the gas inlet and the gas injector are interconnected to each other.

9. The gas burner assembly according to claim 1 , wherein the gas injector is arranged at or in front of an inlet of the Venturi pipe.

10. The gas burner assembly according to claim 1 , wherein the flame ports are formed as notches in the upper edge or upper edges of the at least one circumferential wall.

11. The gas burner assembly according to claim 5 , wherein the external flame ports are sloped with respect to the horizontal plane at an angle about between 5° and 30°.

12. The gas burner assembly according to claim 1 , wherein the burner cap is formed as a single piece part.

13. The gas burner assembly according to claim 1 , wherein the burner crown is formed as a single piece part.

14. The gas burner assembly according to claim 1 , wherein the burner body is formed as a single piece part.

15. A gas cooking hob comprising at least one gas burner assembly, wherein the gas cooking hob comprises at least one gas burner assembly according to claim 1 .

Assignees

• Electrolux Appliances AB

Inventors

• Rasi Fabio

Classifications

• F24C3/085 Primary

  on ranges · CPC title

• F23D14/06 Primary

  with radial outlets at the burner head · CPC title