Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2005-04-19
2005-04-19
Tyler, Cheryl J. (Department: 3746)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S799000, C060S748000
Reexamination Certificate
active
06880341
ABSTRACT:
A floating collar assembly for damping vibration and sealing between a combustor and a fuel nozzle of a gas turbine engine. The combustor has a nozzle opening with an outer peripheral abutment surface and the nozzle is integral with an internal fuel manifold that is secured to the engine core relative to the combustor. The nozzle has a cylindrical body aligned with the nozzle opening and has a shoulder laterally extending from the nozzle body. An annular floating collar has a combustor face adapted for radial sliding engagement with the abutment surface, a central aperture adapted for axial sliding engagement with the cylindrical body and an outer bearing surface. A wave spring is disposed between the outer bearing surface of the floating collar and an inner surface of the nozzle shoulder, for maintaining sealing engagement, for damping vibration, and for impeding relative rotation between the nozzle and the combustor, while accommodating axial and radial relative displacement.
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Oskooei Saeid
Parkman Kenneth
(Ogilvy Renault)
Pratt & Whitney Canada Corp.
Rodriguez William H.
Tyler Cheryl J.
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