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US 8,262,802 B2Granted
Method of removing deposits
AssigneeROLLS-ROYCE plc
InventorsIan M Garry, James R I Lloyd, Tomas Butler
Life of this patent
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Abstract
A method of removing a deposit from a passage extending through a component includes immersing the passage within a liquid, and directing a liquid jet at the passage from a source within the liquid bath and with a sufficient velocity so as to remove at least a portion of the deposit.
Claims20
A method of removing a deposit from a passage extending through a component, the method comprising:
- immersing the passage within a liquid bath;
- directing a first liquid jet at the passage from a source within the liquid bath and with a sufficient velocity so as to remove at least a portion of the deposit, the component being made from metal and the deposit is ceramic, and contiguous with a coating provided on a first surface of the component;
- and
- directing a second liquid jet at the passage from a second source within the liquid bath, wherein
- an angle of the first liquid jet is in line or at a negative rake angle relative to a center axis of the passage;
- an angle of the second liquid jet is at a positive rake angle relative to the center axis of the passage;
- the first liquid jet and the second liquid jet are directed at the passage from a second surface of the component opposite the first surface;
- and
- the first liquid jet removes the at least a portion of the deposit without substantial removal of the coating provided on the first surface of the component.
6 more elements
A method of removing a deposit from a passage extending through a component, the method comprising:
- immersing the passage within a liquid bath;
- directing a first liquid jet at the passage from a source within the liquid bath and with a sufficient velocity so as to remove at least a portion of the deposit, the component being made from metal and the deposit is ceramic, and contiguous with a coating provided on a first surface of the component;
- and
- subsequently directing a second liquid jet at the passage from a second source within the liquid bath,
- wherein the first liquid jet removes the at least a portion of the deposit without substantial removal of the coating provided on the first surface of the component,
- the first liquid jet and the second liquid jet are directed at the passage from a second surface of the component opposite the first surface;
- the first liquid jet contains mesh glass beads and the second liquid jet contains water and air.
4 more elements
Dependencies are inferred from the claim text.