Seal for jet engine mid-turbine frame
AssigneeUnited Technologies Corporation
InventorJohn E. Wilber
Life of this patent
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Abstract
A mid-turbine frame (MTF”) for a jet engine is disclosed and comprises a duct that extends between a high pressure turbine (“HPT”) and a low pressure turbine (“LPT”), the duct comprising a plurality of segments that together form an outer annular structure and an inner annular structure, the inner annular structure situated radially inward of the outer annular structure, and/or a plurality of vanes that extend radially outward from the inner annular structure toward the outer annular structure, each vane comprising a channel. Each segment may be coupled to an adjacent segment by a seal.
Claims18
A seal comprising:
- a male seal structure having a body and a protruding member extending away from the body;
- a receiving member having an aperture configured to receive the protruding member;
- a fastener configured to be coupled to the protruding member to retain the protruding member in contact with the receiving member.
The seal of claim 6, wherein the tortuous gutter is configured to permit cooling air to flow into a hot gas path formed within a duct.
A mid-turbine frame (“MTF”) for a jet engine comprising:
- a duct that extends between a high pressure turbine (“HPT”) and a low pressure turbine (“LPT”), the duct comprising a plurality of segments that together form an outer annular structure and an inner annular structure,
- wherein the inner annular structure is situated radially inward of the outer annular structure,
- wherein each segment comprising the outer annular structure includes a first tenon that defines a first axial terminus of each segment and a second tenon that defines a second axial terminus of each segment.
Dependencies are inferred from the claim text.