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US 2026/0201805 A1Published application
Shape memory alloy under-root fan blade spacer
AssigneeRtx Corporation
InventorsJackson David Johnson, Colin Kling
Life of this patent
Estimating the term…
Abstract
An under-root fan blade spacer system including a fan hub including a fan hub receiver, the fan hub receiver having a hub receiver floor, the fan hub receiver having an opening configured to receive a fan blade root, the fan blade root includes a base end; a gap formed between the base end of the fan blade root and a hub receiver floor; and a spacer disposable within the gap, the spacer comprising a shape memory alloy material.
Claims20
An under-root fan blade spacer system comprising:
- a fan hub including a fan hub receiver, the fan hub receiver having a hub receiver floor, the fan hub receiver having an opening configured to receive a fan blade root, the fan blade root includes a base end;
- a gap formed between the base end of the fan blade root and the hub receiver floor;
- a spacer disposable within the gap, the spacer comprising a shape memory alloy material;
- and
- a retaining feature formed in the root base end having a similar silhouette to a shape of the spacer.
2 more elements
A gas turbine engine under-root fan blade spacer system comprising:
- a fan hub including a fan hub receiver, the fan hub receiver having a hub receiver floor, the fan hub receiver having a dovetail shaped opening configured to receive a fan blade root, the fan blade root includes a base end;
- a gap formed between the base end of the fan blade root and a hub receiver floor;
- at least one spacer disposable within the gap, the at least one spacer comprising a shape memory alloy material;
- and
- a retaining feature formed in the root base end having a similar silhouette to a shape of the at least one spacer.
2 more elements
A process of forming an under-root fan blade spacer system comprising:
- forming a fan hub including a fan hub receiver, the fan hub receiver having a hub receiver floor, the fan hub receiver having an opening configured to receive a fan blade root, the fan blade root includes a base end;
- forming a gap between the base end of the fan blade root and a hub receiver floor;
- disposing at least one spacer within the gap, the at least one spacer comprising a shape memory alloy material;
- and
- forming a retaining feature in the root base end having a similar silhouette to a shape of the at least one spacer.
2 more elements
Dependencies are inferred from the claim text.