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US 5,590,517 AGranted
Ignition methods and apparatus for combustors
AssigneeSimmonds Precision Engine Systems, Inc.
InventorDennis M. DeFreitas
Life of this patent
Estimating the term…
Abstract
Apparatus for igniting fuel in a combustor includes an injector having an electrostatic fuel atomization nozzle and an igniter. The injector produces an initial combustion process that ignites the main fuel supply from a fuel nozzle. Alternatively, a main fuel nozzle is provided which includes a plurality of electrostatic fuel nozzles disposed about a centrally located igniter. In one embodiment, the igniter is a laser igniter.
Claims6
A method for igniting fuel in a combustor comprising the steps of:
- a. mixing fuel from a main fuel supply with air to produce a main air/fuel spray, and delivering the main air/fuel spray into the combustor;
- b. using an electrostatic nozzle to atomize fuel provided from a second fuel supply to produce an atomized fuel spray separate from the main air/fuel spray;
- c. using an igniter to ignite said separate atomized fuel spray;
- and
- d. using the ignited electrostatically atomized fuel spray to ignite said main air/fuel spray in the combustor.
2 more elements
Dependencies are inferred from the claim text.