Combustion – Combustion bursts or flare-ups in pulses or serial pattern
Patent
1989-06-26
1990-09-25
Dority, Carroll B.
Combustion
Combustion bursts or flare-ups in pulses or serial pattern
122 24, F23C 1100
Patent
active
049590090
ABSTRACT:
A hybrid burner system is disclosed which incorporates features of continuous burners and pulse combustion devices. A combustion chamber is fitted with one-way air inlet valves, a restricted or one-way exhaust outlet valve and a pressurized, gas inlet which is externally actuated in a periodic manner to produce combustion pulses during operation. The combustion pulses generate heat, force the products of combustion from the burner chamber and cause combustion air to periodically enter the chamber in a self-aspirating manner. Combustion occurs silently during the entire time the fuel is externally pulsed. A spark plug electrode - stabilizing rod arrangement insures consistent ignition while a flame front is stabilized and propagated at the rod. The burner arrangement is self-contained in a recirculating heat exchange application where a pulse opening is provided at a precise position relative to the heat combustion chamber. A pulse line taps the pressure pulses produced during the burner operation which are clamped to provide a fairly constant fluid flow for use in a closed-loop where the burner supplies the heat input to the system.
REFERENCES:
patent: 4759312 (1988-07-01), Pletzer
patent: 4808107 (1989-02-01), Yokoyama et al.
patent: 4856981 (1989-08-01), Flanagan
"Advancement of Developmental Technology for Pulse Combustion Applications", by American Gas Association, Labs., Mar. 1984.
Sandia Report, by T. T. Bramlette, Feb. 1986, "The ECUT Pulse Combustion Research Program-A Milestone Report".
"Opportunities in Pulse Combustion", by D. L. Brenchley and H. J. Bomelburg, Oct. 1985.
Dority Carroll B.
Indugas, Inc.
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