Power plants – Reaction motor – Interrelated reaction motors
Reexamination Certificate
2004-05-24
2008-11-04
Rodriguez, William H (Department: 3746)
Power plants
Reaction motor
Interrelated reaction motors
C415S160000, C415S211200
Reexamination Certificate
active
07444802
ABSTRACT:
Within an intake for a gas turbine engine provision is provided through stator vanes25, 45in the stator whereby back pressure from a necessary obstruction34, 46can be utilised to balance forward pressure variations caused by intake droop or crosswinds in order to reduce those forward pressure detriments for more efficient engine operation according to a desired objective regime. Typically the flow through the intake20is analysed and then an appropriate positioning of the stator vanes25, 45determined in order to provide approximate balance between the forward pressures and back pressures. Normally, a combination of camber variation of stator vanes45aand stagger variation of stator vanes45bare utilised in order to achieve a desired momentum balance around the circumference of the intake20.It will be understood that both the forward pressures and the back pressures are differentially variable about the circumference such that one opposes the other.
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Manelli Denison & Selter PLLC
Rodriguez William H
Rolls-Royce plc
Taltavull W. Warren
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