Power plants – Combustion products used as motive fluid – With addition of steam and/or water
Reexamination Certificate
2005-07-26
2005-07-26
Casaregola, Louis J. (Department: 3746)
Power plants
Combustion products used as motive fluid
With addition of steam and/or water
C060S801000, C239S424500, C239S555000, C239S596000
Reexamination Certificate
active
06920749
ABSTRACT:
A multi-function spray nozzle for engine applications useful as a cooling device to introduce a fluid into the fluid stream of the engine, and as a cleaning device to introduce a fluid to clean internal components of the engine. The nozzle includes a multi-layered arrangement of etched plates defining flow paths for the first and second fluids. Non-radial feed slots direct the first fluid into a cylindrical swirl chamber. The swirling fluid exits the swirl chamber through a spray orifice or a prefilmer, depending on whether the nozzle is configured as a simplex or prefilmer nozzle. Other non-radial feed slots direct the second fluid inward, downstream of the first fluid, to create a fine dispersion of droplets for fluid stream cooling purposes. During cleaning, only the first fluid is introduced through the nozzle, which results in a larger droplet size suitable for cleaning purposes of the internal components of the engine.
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Aiken Kim L
Buca Peter V.
Duncan James F.
Harvey Rex J.
Mansour Adel B.
Casaregola Louis J.
Hunter Christopher H.
Parker-Hannifin Corporation
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