Pulse combustor with controllable oscillations
Abstract
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.
- Inventors:
-
- Morgantown, WV
- Columbiana, OH
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 868354
- Patent Number(s):
- 5123835
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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/
Citation Formats
Richards, George A, Welter, Michael J, and Morris, Gary J. Pulse combustor with controllable oscillations. United States: N. p., 1992.
Web.
Richards, George A, Welter, Michael J, & Morris, Gary J. Pulse combustor with controllable oscillations. United States.
Richards, George A, Welter, Michael J, and Morris, Gary J. Wed .
"Pulse combustor with controllable oscillations". United States. https://www.osti.gov/servlets/purl/868354.
@article{osti_868354,
title = {Pulse combustor with controllable oscillations},
author = {Richards, George A and Welter, Michael J and Morris, Gary J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}