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US 11,230,943 B2Granted
Aircraft turbine rear structures
AssigneeGKN Aerospace Sweden AB
InventorFredrik Wallin
Life of this patent
Estimating the term…
Abstract
A turbine rear structure for a gas turbine engine includes a central hub and a circumferential outer ring coaxial with the central hub. The turbine rear structure further includes a plurality of guide vanes extending radially between the central hub and the circumferential outer ring, and an intermediate guide vane located in a space defined between adjacent guide vanes. The intermediate guide vane is located closer to one of the guide vanes than the other guide vane.
Claims19
A turbine rear structure for a gas turbine engine comprising:
- a central hub;
- a circumferential outer ring coaxial with the central hub;
- a plurality of guide vanes extending radially between the central hub and the circumferential outer ring;
- and
- an intermediate guide vane positioned in a space defined between adjacent guide vanes of the plurality of guide vanes, wherein the intermediate guide vane is positioned closer to one of the guide vanes than the other guide vane;
- wherein the adjacent guide vanes include an upstream vane and a downstream vane relative to an exhaust gas flow direction, and the intermediate guide vane is positioned closer to the upstream vane than the downstream vane.
3 more elements
A method of manufacturing a turbine rear structure comprising:
- (A) forming a central hub and a circumferential outer ring,
- (B) connecting a plurality of guide vanes to extend radially between the central hub and the circumferential outer ring;
- and
- (C) positioning an intermediate guide vane between adjacent guide vanes of the plurality of guide vanes, wherein the intermediate guide vane is located asymmetrically with respect to the adjacent guide vanes;
- wherein the adjacent guide vanes include an upstream vane and a downstream vane relative to an exhaust gas flow direction, and the intermediate guide vane is positioned closer to the upstream vane than the downstream vane.
2 more elements
Dependencies are inferred from the claim text.