Flame Device

• US 20130252188A1
• Filed: 12/20/2012
• Published: 09/26/2013
• Est. Priority Date: 03/22/2012
• Status: Active Grant

• Current Assignee: Pro-Iroda Industries, Inc.
• Original Assignee: Pro-Iroda Industries, Inc.
• Inventors: Chen, Wei-Long
• Granted Patent: US 9,163,831 B2
• Time in Patent Office: Days
• US Class Current: 431/353
• CPC Class Codes: F23D 14/06 with radial outlets at the burner head
• CPC Class Codes: F23D 14/10 with elongated tubular burner head
• CPC Class Codes: F23D 14/84 Flame spreading or otherwise shaping F23D14/70 takes precedence
• CPC Class Codes: F23D 2206/0094 Gas burners adapted for use in illumination and heating

Abstract

A flame device includes a fluid inducing assembly that can induce external air therein. A flow diverting mechanism includes a plurality of vanes. The plurality of vanes are circumferentially disposed and each pair of adjacent vanes includes a space therebetween defining a passage which is spiral shaped. Each vane has a first section exposed to outside and not concealed by a concealing member defining a flow intake zone. Each vane has a second section encircled by the concealing member defining a flow accelerating zone. A shield is disposed above the fluid inducing assembly. A combustion head is disposed above the flow diverting mechanism and includes a mixing chamber, a flame guiding member, and a plurality of grooves. The flame guiding member is in a spaced relationship and circumferentially conceals a wall delimiting the mixing chamber.

Claims

1. A flame device comprising:

a fluid inducing assembly including a support and a flow diverting mechanism mounted on the support, with the flow diverting mechanism including a plurality of vanes, with the plurality of vanes circumferentially disposed, with each pair of adjacent vanes including a space therebetween defining a passage which is spiral shaped, with the support including a concealing member mounted thereon and having an enclosed circumferential edge, with each vane having a first section exposed to outside and not concealed by the concealing member defining a flow intake zone, with each vane having a second section encircled by the concealing member defining a flow accelerating zone, with the support and the flow diverting mechanism including an air intake port disposed therebetween, with external air flowing into the flow diverting mechanism through the air intake port;

a shield being hollow and transparent to light and disposed above the fluid inducing assembly; and

a combustion head disposed above the flow diverting mechanism and including a mixing chamber, a flame guiding member, and a plurality of grooves, with the flame guiding member having a first end and a second end opposite to the first end and one of the first and second ends open and the other of the first and second ends enclosed, with the flame guiding member disposed in a spaced relationship and circumferentially concealing a wall delimiting the mixing chamber, with the plurality of grooves fluidally communicating the mixing chamber and a space between the flame guiding member and the wall delimiting the mixing chamber;

wherein gas and air flowing into the flame device are directed to undergo a first mixing process in the mixing chamber and gas and air mixture flows out of the mixing chamber to the space defined between the mixing chamber and the flame guiding member through the plurality of grooves and is mixed with air flowing in the space defined between the mixing chamber to undergo a second mixing process.

2. The flame device as claimed in claim 1 further comprising a conduit surrounded within the flow diverting mechanism, wherein the conduit has a periphery including at least one orifice extended therethrough, and wherein gas from a fuel supply device flows to the mixing chamber through the conduit and the least one orifice allows air in the flame device to flow into the conduit.

3. The flame device as claimed in claim 2, wherein the combustion head includes a second engaging member having a bottom side and a top side, and wherein the top side includes the plurality of grooves inset thereon.

4. The flame device as claimed in claim 3, wherein the flow diverting mechanism includes a tube and a first engaging member, wherein the tube is hollow and has an inner periphery thereof receiving the conduit, wherein the plurality of vanes are mounted on the tube, wherein the tube includes a first end thereof having a first joining end and a second end thereof having a second joining end respectively, wherein the first engaging member has an end thereof forming a third joining end fixed to the first joining end and a plurality of first gaps are formed between the first and third joining ends, wherein the second engaging member has an end thereof forming a fourth joining end fixed to the second joining end and a plurality of second gaps are formed between the second and fourth joining ends, and wherein each vane includes two attaching ends extending in the same direction and one attaching end is insertably engaged in one of the plurality of first gaps to fix to the tube and the first engaging member and the other attaching end is insertably engaged in one of the plurality of second gaps to fix to the tube and the second engaging member, respectively.

5. The flame device as claimed in claim 1, wherein a first imaginary axis is adapted to be radially drawn form a center of the combustion head, wherein a second imaginary axis is adapted to be drawn radially along a longitudinal direction of one of the plurality of grooves, and wherein one first and one second imaginary axes is adapted to be intersected at an angle in one groove, and wherein the angle is in a range of 10-30 degrees.

6. The flame device as claimed in claim 3, wherein the combustion head includes the top side thereof including an annular channel inset, wherein each of the plurality of grooves is with a length and a width and the ratio of length to width is in a range of 1-3 for stable guiding the gas and air mixture, wherein the flame guiding member includes a first end thereof engaged in the annular channel and a second end thereof at a height from the top side of the combustion head, wherein an exit of each of the plurality of grooves to the flame guiding member is with a distance, and wherein the ratio of distance to groove length is in the range of 1-3.

7. The flame device as claimed in claim 3, wherein the top side includes a protruded edge extended therefrom and the protruded edge includes an end thereof including the plurality of grooves inset thereon, wherein the flame guiding member circumferentially conceals the protruded edge, wherein the combustion head includes a lid having a fixing edge and a projection protruded from the fixing edge, wherein the fixing edge is mounted on the end of the protruded edge and each of the plurality of grooves has a top end capped by the fixing edge, wherein the projection includes a cavity formed therein and fluidally communicating with the mixing chamber and the plurality of grooves, and wherein the flame guiding member circumferentially conceals the lid.

8. The flame device as claimed in claim 3 further comprising an igniting head including an end thereof having an igniting needle, wherein the second engaging member includes a first aperture extended therethrough and including the igniting head mounted therein, wherein the igniting head includes the igniting needle disposed outside the aperture, wherein the flame guiding member includes a lateral side thereof having an ignition point disposed adjacent to and pointed at the igniting needle.

9. The flame device as claimed in claim 3, wherein the flame guiding member is insertably engaged with a cap, and wherein the cap includes a peripheral edge thereof having at least one drainage hole to prevent liquid from dripping onto the second engaging member.

10. The flame device as claimed in claim 1, wherein an internal diameter of the flame guiding member and an internal diameter of the shield have a ratio in a range of 0.2-0.8 to provide an adequate flow rate.

11. The flame device as claimed in claim 6, wherein the top side includes a protruded edge extended therefrom and the protruded edge includes an end thereof including the plurality of grooves inset thereon, wherein the flame guiding member circumferentially conceals the protruded edge, wherein the combustion head includes a lid having a fixing edge and a projection protruded from the fixing edge, wherein the fixing edge is mounted on the end of the protruded edge and each of the plurality of grooves has a top end capped by the fixing edge, wherein the projection includes a cavity formed therein and fluidally communicating with the mixing chamber and the plurality of grooves, and wherein the flame guiding member circumferentially conceals the lid.

12. The flame device as claimed in claim 11 further comprising an igniting head including an end thereof having an igniting needle, wherein the second engaging member includes a first aperture extended therethrough and including the igniting head mounted therein, wherein the igniting head includes the igniting needle disposed outside the aperture, wherein the flame guiding member includes a lateral side thereof having an ignition point disposed adjacent to and pointed at the igniting needle.

13. The flame device as claimed in claim 12, wherein the flame guiding member is insertably engaged with a cap, and wherein the cap includes a peripheral edge thereof having at least one drainage hole to prevent liquid from dripping onto the second engaging member.

14. The flame device as claimed in claim 13, wherein an internal diameter of the flame guiding member and an internal diameter of the shield have a ratio in a range of 0.2-0.8 to provide an adequate flow rate.

15. The flame device as claimed in claim 14, wherein a first imaginary axis is adapted to be radially drawn form a center of the combustion head, wherein a second imaginary axis is adapted to be drawn radially along a longitudinal direction of one of the plurality of grooves, and wherein one first and one second imaginary axes is adapted to be intersected at an angle in one groove, and wherein the angle is in a range of 10-30 degrees.

16. The flame device as claimed in claim 15, wherein the flow diverting mechanism includes a tube and a first engaging member, wherein the tube is hollow and has an inner periphery thereof receiving the conduit, wherein the plurality of vanes are mounted on the tube, wherein the tube includes a first end thereof having a first joining end and a second end thereof having a second joining end respectively, wherein the first engaging member has an end thereof forming a third joining end fixed to the first joining end and a plurality of first gaps are formed between the first and third joining ends, wherein the second engaging member has an end thereof forming a fourth joining end fixed to the second joining end and a plurality of second gaps are formed between the second and fourth joining ends, and wherein each vane includes two attaching ends extending in the same direction and one attaching end is insertably engaged in one of the plurality of first gaps to fix to the tube and the first engaging member and the other attaching end is insertably engaged in one of the plurality of second gaps to fix to the tube and the second engaging member, respectively.

17. The flame device as claimed in claim 8, wherein the flame guiding member is insertably engaged with a cap, and wherein the cap includes a peripheral edge thereof having at least one drainage hole to prevent liquid from dripping onto the second engaging member.

18. The flame device as claimed in claim 17, wherein a first imaginary axis is adapted to be radially drawn form a center of the combustion head, wherein a second imaginary axis is adapted to be drawn radially along a longitudinal direction of one of the plurality of grooves, and wherein one first and one second imaginary axes is adapted to be intersected at an angle in one groove, and wherein the angle is in a range of 10-30 degrees.

19. The flame device as claimed in claim 18, wherein the combustion head includes the top side thereof including an annular channel inset, wherein each of the plurality of grooves is with a length and a width and the ratio of length to width is in a range of 1-3 for stable guiding the gas and air mixture, wherein the flame guiding member includes a first end thereof engaged in the annular channel and a second end thereof at a height from the top side of the combustion head, wherein an exit of each of the plurality of grooves to the flame guiding member is with a distance, and wherein the ratio of distance to groove length is in the range of 1-3.

20. The flame device as claimed in claim 19, wherein an internal diameter of the flame guiding member and an internal diameter of the shield have a ratio in a range of 0.2-0.8 to provide an adequate flow rate.