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US 7,959,532 B2Granted
Hydraulic seal for a gearbox of a tip turbine engine
AssigneeUnited Technologies Corporation
InventorsGabriel L. Suciu, Lawrence E. Portlock, Brian Merry
Life of this patent
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Abstract
A hydraulic seal for a tip turbine engine includes an inner radial flange and an outer radial flange. The inner radial flange rotates relative to the outer radial seal section and the planet carrier face to prevent lubrication from entering into the air flow streams within the engine without additional engine assembly procedures.
Claims7
A gearbox assembly for a gas turbine engine having a fan-turbine rotor assembly comprising:
- a nonrotatable support structure mounted about an engine centerline;
- a gear shaft mounted about said nonrotatable support structure for rotation about said engine centerline;
- an inner radial flange extending from said gear shaft;
- a planet carrier mounted for rotation about said engine centerline;
- and
- an outer radial flange which extends from said planet carrier for rotation relative to said inner radial flange, said outer radial flange including a radial mount section, an axial fan hub section which extends transverse to said radial mount section, and an outer radial seal section which extends transverse to said axial fan hub section, said outer radial seal section at least partially radially overlapping said inner radial flange to form a hydraulic seal, said outer radial flange mountable to the fan-turbine rotor assembly for rotation therewith to mount said fan-turbine rotor assembly to the gearbox assembly.
3 more elements
Dependencies are inferred from the claim text.