Combustion – Heated line section feeds flame holder – Unheated oxidizer supply to line between heated section and...
Patent
1990-05-07
1991-10-08
Jones, Larry
Combustion
Heated line section feeds flame holder
Unheated oxidizer supply to line between heated section and...
431 4, 431354, 431350, 431257, F23Q 232, F23N 300
Patent
active
050550314
ABSTRACT:
A fire vortex display for providing an interesting fire display for decorative and attention getting purposes. The display utilizes a burner for burning a gaseous or liquid fuel, typically in a very fuel rich mixture. The burner is located at one end of a normally vertical transparent tube such as a Pyrex tube, with a blower blowing air into the tube adjacent to the burner in a substantially circumferential manner to provide a swirling action for the flame given off by the burner as the flame proceeds upward into the tube. A second transparent tube concentric with and somewhat larger than the first tube is provided over the first tube, with the region between the two tubes being ducted to form the inlet for the blower. This keeps the outer tube cool so that the fire vortex can be observed from a position close thereto and the outer tube even touched by an observer without danger thereto. Also disclosed are methods of controlling the fire vortex to control the direction and speed of spiraling thereof and the color of the flame.
REFERENCES:
patent: 2769366 (1956-11-01), Honma
patent: 2805598 (1957-09-01), Sprague et al.
patent: 3507589 (1970-04-01), Keller
patent: 3894833 (1975-07-01), Rinecker
patent: 3991689 (1976-11-01), Rinecker
patent: 4125360 (1978-11-01), Culbertson
patent: 4331638 (1982-05-01), Michelfelder
patent: 4784043 (1988-11-01), Kobayashi et al.
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