Pulse combustor with controllable oscillations

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868354

Richards, George A ^[1]; Welter, Michael J ^[2]; Morris, Gary J ^[1]

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1. Morgantown, WV
2. Columbiana, OH

A pulse combustor having thermally induced pulse combustion in a continuously flowing system is described. The pulse combustor is fitted with at lease one elongated ceramic body which significantly increases the heat transfer area in the combustion chamber of the combustor. The ceramic body or bodies possess sufficient mass and heat capacity to ignite the fuel-air charge once the ceramic body or bodies are heated by conventional spark plug initiated combustion so as to provide repetitive ignition and combustion of sequentially introduced fuel-air charges without the assistance of the spark plug and the rapid quenching of the flame after each ignition in a controlled manner so as to provide a selective control over the oscillation frequency and amplitude. Additional control over the heat transfer in the combustion chamber is provided by employing heat exchange mechanisms for selectively heating or cooling the elongated ceramic body or bodies and/or the walls of the combustion chamber.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5123835
• OSTI ID: 868354
• Country of Publication: United States
• Language: English

Related Subjects

pulse
combustor
controllable
oscillations
thermally
induced
combustion
continuously
flowing
described
fitted
lease
elongated
ceramic
significantly
increases
heat
transfer
chamber
bodies
possess
sufficient
mass
capacity
ignite
fuel-air
charge
heated
conventional
spark
plug
initiated
provide
repetitive
ignition
sequentially
introduced
charges
assistance
rapid
quenching
flame
controlled
manner
selective
control
oscillation
frequency
amplitude
additional
provided
employing
exchange
mechanisms
selectively
heating
cooling
walls
significantly increases
heat capacity
oscillation frequency
thermally induced
spark plug
combustion chamber
heat exchange
heat transfer
controlled manner
pulse combustor
sufficient mass
additional control
rapid quenching
continuously flowing
rapid quench
pulse combustion
employing heat
significantly increase
/431/60/122/