BURNER FIRE CAP FOR GAS COOKTOP AND BURNER USING THE SAME

• US 20100126496A1
• Filed: 11/20/2009
• Published: 05/27/2010
• Est. Priority Date: 11/21/2008
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Luo, Haitao, Miao, Weiwei, Zhang, Shenzhou
• Granted Patent: US 8,220,450 B2
• Time in Patent Office: Days
• US Class Current: 126/39.E
• CPC Class Codes: F23D 14/06 with radial outlets at the burner head
• CPC Class Codes: F23D 2900/14062 for cooking ranges having multiple flame rings
• CPC Class Codes: F23D 2900/14064 Burner heads of non circular shape

Abstract

A burner fire cap for a gas cooktop includes a substantially annular cover body. A plane is configured on the cover body. At least two bosses protruding from the plane are distributed in a peripheral direction of the fire cap on the plane. Fire holes are disposed on the bosses. In the burner fire cap for a gas cooktop, at least two bosses are disposed and the fire holes are disposed on the bosses. As compared with a burner fire cap for a gas cooktop in the prior art, the distribution of the fire holes on the fire cap is changed, thereby enhancing the uniformity for heating a bottom of a utensil by using a burner having the fire cap.

Claims

1. A burner fire cap for a gas cooktop, comprising a substantially annular cover body, wherein a plane is configured on the cover body, at least two bosses protruding from the plane are distributed on the plane in a peripheral direction of the fire cap, and fire holes are disposed on the bosses.

2. The burner fire cap of claim 1, wherein recesses having the same number and substantially corresponding shape as the bosses are disposed on a rear side of the cover body.

3. The burner fire cap of claim 1, wherein the bosses are evenly distributed on the plane.

4. The burner fire cap of claim 1, wherein each of the bosses at least has a first boss side surface with fire holes distributed thereon and a second boss side surface forming a first included angle α

with the first boss side surface and having fire holes distributed thereon.

5. The burner fire cap of claim 4, wherein each of the bosses further comprises a third boss side surface forming a second included angle β

with the first boss side surface and having fire holes distributed thereon.

6. The burner fire cap of claim 5, wherein outer-ring fire holes are distributed on the first boss side surface, inner-ring fire holes are distributed on the second boss side surface, and middle fire holes are distributed on the third boss side surface.

7. The burner fire cap of claim 5, wherein the third boss side surface inclines for approximately an angle δ

relative to the plane, and 100°

≦

δ

≦

150°

.

8. The burner fire cap of claim 5, wherein 120°

≦

δ

≦

125°

.

9. The burner fire cap of claim 4, wherein the first boss side surface inclines for approximately an angle θ

relative to the plane, and 45°

≦

θ

≦

90°

.

10. The burner fire cap of claim 4, wherein θ

=70.

11. The burner fire cap of claim 4, wherein the second boss side surface inclines for approximately an angle γ

relative to the plane, and 120°

≦

γ

≦

150°

.

12. The burner fire cap of claim 4, wherein γ

=135°

.

13. The burner fire cap of claim 1, wherein top surfaces of the bosses are located at the same horizontal plane.

14. The burner fire cap of claim 1, wherein the number of the bosses is two to eight, and the bosses are evenly distributed on the plane.

15. The burner fire cap of claim 14, wherein the number of the bosses is three or four, and the bosses are evenly distributed on the plane.

16. The burner fire cap of claim 1, wherein an auxiliary air supply channel is formed between adjacent bosses.

17. The burner fire cap of claim 1, wherein a thickness of the fire cap is between 12 cm and 15 cm.

18. The burner fire cap of claim 17, wherein the thickness of the fire cap is between 14 cm and 15 cm.

19. A gas cooktop burner, comprising:

a gas mixing chamber member disposed with a gas cavity, and the fire cap operated together with the gas cavity, wherein the fire cap comprises a substantially annular cover body, wherein a plane is configured on the cover body, at least two bosses protruding from the plane are distributed on the plane in a peripheral direction of the fire cap, and fire holes are disposed on the bosses.