Back to results
US 8,573,948 B2Granted
Airfoil
AssigneeROLLS-ROYCE plc
InventorMatthew P. Jevons
Life of this patent
Estimating the term…
Abstract
An airfoil has a hollow shell providing external airfoil surfaces, and a corrugated core within the shell. The core contacts inner surfaces of the shell to support the shell. The airfoil is formed by consolidating a hollow shell pre-form and a corrugated core pre-form. At least a part of the hollow shell has a leading edge shell portion and/or a trailing edge shell portion which, before consolidation of the pre-forms, is a unitary body having a shape which wraps around the respective edge.
Claims20
An airfoil having:
- a hollow shell providing external airfoil surfaces, and
- a corrugated core within the shell, the core contacting inner surfaces of the shell to support the shell;
- wherein the airfoil is formed by consolidating a hollow shell pre-form and a corrugated core pre-form, and
- the hollow shell has a leading edge shell portion and a trailing edge shell portion wherein, before consolidation of the pre-forms, each edge shell portion is a unitary body having a shape which wraps around the respective edge.
1 more element
Dependencies are inferred from the claim text.