Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-02-28
2006-02-28
Kim, Ted (Department: 3746)
Power plants
Combustion products used as motive fluid
Process
C060S749000, C060S750000, C060S737000
Reexamination Certificate
active
07003961
ABSTRACT:
A trapped vortex combustor for gas turbine engines. An annular combustor housing is provided having a plurality of inlet centerbodies disposed along a helical axis. The inlet centerbodies include a leading edge structure, opposing sidewalls, a pressurizable cavity, and a rear wall. Inlet centerbodies cooperate with adjacent structure and an aft bluff body to define a trapped vortex cavity combustion chamber for mixing an inlet fluid and burning fuel to form hot combustion gases. Mixing is enhanced by utilizing struts adjacent to the rear wall to create eddies in the fluid flow, and by injecting fuel and/or air in opposition to swirl created by the bulk fluid flow. Hot combustion gases are utilized in a turbine for extraction of kinetic energy, or in heat exchange equipment for recovery of thermal energy. High combustion efficiencies and less than 10 ppm emissions of oxides of nitrogen and of carbon monoxide are achieved.
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Kendrick Donald
Lawlor Shawn P.
Steele Robert C.
Goodloe, Jr. R. Reams
Kim Ted
Ramgen Power Systems, Inc.
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