Bifurcated outlet guide vanes
First Claim
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1. A turbine rear frame comprising:
- a row of outlet guide vanes extending radially between outer and inner bands in said turbine rear frame, and each vane including an internal channel extending through said outer band;
each of said vanes being bifurcated into a forward prow integrally joined to an aft stern by a narrow septum introducing a first radial slot between said prow and stern; and
a row of apertures disposed adjacent said septum in each of said vanes in flow communication between said channels and first slots.
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Abstract
A turbine rear frame includes a row of outlet guide vanes extending between outer and inner bands. Each of the vanes is bifurcated into a forward prow integrally joined to an aft stern by a septum therebetween. The prow and stern collectively define the aerodynamic profile of each vane which is locally interrupted at the septum.
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Citations
32 Claims
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1. A turbine rear frame comprising:
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a row of outlet guide vanes extending radially between outer and inner bands in said turbine rear frame, and each vane including an internal channel extending through said outer band; each of said vanes being bifurcated into a forward prow integrally joined to an aft stern by a narrow septum introducing a first radial slot between said prow and stern; and a row of apertures disposed adjacent said septum in each of said vanes in flow communication between said channels and first slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A turbine rear frame comprising:
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a row of outlet guide vanes extending radially between outer and inner bands in said turbine rear frame; and each of said vanes includes a prow integrally joined to a stern by a septum extending chordally therebetween to collectively define an aerodynamic profile having a convex suction side and a concave pressure side extending chordally between a leading edge on said prow and a trailing edge on said stern interrupted chordally therebetween at said septum. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification