Burner for gas apparatus

Patent metadata

Field	Value
Publication number	US-10352557-B2
Application number	US-201615382422-A
Country	US
Kind code	B2
Filing date	Dec 16, 2016
Priority date	Sep 26, 2016
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A burner includes a base and a combustion tray, wherein the base has an inlet pipe and two horn-shaped tubes. The horn-shaped tubes are connected to opposite sides of the inlet pipe, wherein each of the horn-shaped tubes respectively has a first section. A length of the first sections is no less than an inner diameter of the inlet pipe at where the horn-shaped tubes are connected to. The combustion tray is engaged with the base, and communicates with the horn-shaped tubes. Whereby, gas and air could be fully mixed while flowing through each of the first sections. The symmetrical horn-shaped tubes could direct the airflow to the combustion tray, where the airflow could be outputted from flame vents of the combustion tray, whereby to generate more even flame, and to enhance the heating efficiency.

First claim

What is claimed is:

1. A burner, comprising:
a base, comprising:
an inlet pipe;
two horn-shaped tubes, each of which has a first section and a second section connected to the first section in a substantially perpendicular manner, wherein each of the first sections is connected to the inlet pipe; a length of each of the first sections is greater than or equal to an inner diameter of the inlet pipe where the first sections are connected to the inlet pipe; each of the second sections is bent to extend toward the other second section, and communicates with at least one air passage, wherein the air passage which communicates with one of the second sections also communicates with the air passage which communicates with the other one of the second sections;

a combustion tray provided on the base, wherein the combustion tray comprises a flame plate located above the air passages communicating with the second sections of the horn-shaped tubes; the flame plate has a plurality of first flame vents communicating with the air passages; and
wherein the inlet pipe has an inlet end and a closed end, the closed end is located between the horn-shaped tubes, the inlet pipe has a curved surface recessed into an inner wall of the closed end, and the curved surface recesses in a direction toward the combustion tray.

2. The burner of claim 1 , wherein a reduced section is provided between the inlet end and the closed end of the inlet pipe; the inlet pipe has two lateral openings located between the closed end and the reduced section, and each of the lateral openings respectively communicates with one of the first sections of the horn-shaped tubes.

3. The burner of claim 2 , wherein a length of each of the first sections is greater than or equal to a distance between the lateral openings.

4. The burner of claim 1 , wherein each of the first sections has an indented section; a cross-sectional area thereof is 70 percent to 80 percent of an average cross-sectional area of other portions of each of the first sections; the cross-sectional area of each of the indented sections is a minimum cross-sectional area in the corresponding first section.

5. The burner of claim 4 , wherein the indented section of each of the first sections has a projecting ring; an area surrounded by an inner peripheral surface of each of the projecting rings is the minimum cross-sectional area of the corresponding first section.

6. The burner of claim 4 , wherein each of the indented sections is formed by stamping.

7. The burner of claim 1 , further comprises a metal mesh, which has a plurality of meshes, wherein the flame plate has an inner surface and an outer surface, wherein the first flame vents goes through the inner surface and the outer surface; the metal mesh abuts against the inner surface; a range of a projection of each of the first flame vents covers plurality of the meshes.

8. The burner of claim 1 , further comprises a flow splitter provided in the combustion tray, wherein the combustion tray is long in shape, and has a longitudinal direction and a transverse direction; the flame plate has a middle blocking portion extending in the longitudinal direction of the combustion tray, and comprises a plurality of second flame vents; the first flame vents and the second flame vents are respectively located on two lateral sides of the middle blocking portion in the transverse direction, and are arranged in the longitudinal direction; the flow splitter has a channel and a plurality of bores, wherein the channel extends in the longitudinal direction of the combustion tray, and is located directly below the middle blocking portion; the bores are arranged in the longitudinal direction, and are distributed on two lateral sides of the channel.

9. The burner of claim 8 , further comprises a metal mesh which has a plurality of meshes; the flame plate has an inner surface and an outer surface, wherein the first flame vents and the second flame vents go through the inner surface and the outer surface; the metal mesh abuts against the inner surface, and a range of a projection of each of the first flame vents and each of the second flame vents covers a plurality of the meshes.

10. The burner of claim 8 , wherein the flame plate bulges outward from an inner surface toward an outer surface.

11. The burner of claim 1 , wherein the flame plate further comprises a plurality of second flame vents distribute on opposite sides of a row of the first flame vents; the second flame vents communicate with the air passages.

Assignees

• Grand Mate Co Ltd

Inventors

• Huang Chung-Chin
• Huang Chin-Ying
• Huang Hsin-Ming
• Huang Hsing-Hsiung
• Yeh Yen-Jen
• Chen Wei-Long
• Lin Kuan-Chou
• Luo Tang-Yuan

Classifications

• F23D14/70

  Baffles or like flow-disturbing devices · CPC title

• F23D2212/201

  Fibres · CPC title

• F23D2203/007

  Mixing tubes, air supply regulation · CPC title

• F23D14/04 Primary

  induction type, e.g. Bunsen burner · CPC title

• F23D14/02 Primary

  Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone · CPC title