Aerofoil and method of manufacture
AssigneeROLLS-ROYCE plc
InventorAdrian L. Harding
Life of this patent
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Abstract
A method of manufacturing the aerofoil, and an aerofoil. The method includes: casting a first body portion having a passage passing there-through; casting a second body portion; and joining the first body portion and the second body portion to form the aerofoil. The passage extends from an opening at a first end at or near a leading edge to an opening at a second end at or near a trailing edge. The passage is formed during the casting process by a core; and the core is supported at the first and second ends through the respective openings of the passage.
Claims16
A method of manufacturing an aerofoil having a pair of opposing axial faces extending between a leading edge and a trailing edge, the method including:
- casting a first body portion forming at least part of the first axial face of the aerofoil, the first body portion having a passage passing there-through,
- wherein the passage extends from an opening at a first end at or near the leading edge to an opening at a second end at or near the trailing edge;
- wherein the passage is formed during the casting process by a core;
- and,
- wherein the core is supported at the first and second end through the respective openings of the passage, during casting,
- removing the core from the first body portion;
- casting a second body portion forming at least part of the second axial face;
- and,
- joining the first body portion and the second body portion to form the aerofoil, wherein the second body portion closes at least the opening at the first end of the passage.
An aerofoil having:
- a pair of opposing axial faces extending between a leading edge and a trailing edge, and a length extending parallel to the leading edge and trailing edge;
- a conduit formed extending along the length of the aerofoil;
- and
- a passage extending adjacent to a first of the pair of axial faces, from a first end at the leading edge to a second end at the trailing edge,
- wherein the aerofoil comprises a first body portion, and a second body portion formed separately from and bonded to the first body portion;
- wherein the conduit is formed between the first body portion and the second body portion;
- and,
- wherein the passage extends within the first body portion, and at least a first end of the passage is closed by the second body portion.
Dependencies are inferred from the claim text.