Fluid flow machine comprising a sealing arrangement
AssigneeROLLS-ROYCE plc
InventorsJon MCALINDEN, Felipe Ramon Torres
Life of this patent
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Abstract
There is provided a fluid flow machine (10) comprising: a casing structure (24), a turbomachine blade (311) disposed within the casing structure (24), and a sealing arrangement (330) coupled to the casing structure (24). The sealing arrangement comprises (330) an abrasion portion (334) including a lattice structure (400). The abrasion portion (334) is configured to provide a seal with a tip (321) of the turbomachine blade (311). There is also provided a method (600) of manufacturing such a fluid flow machine (10).
Claims19
A fluid flow machine comprising:
- a casing structure;
- a turbomachine blade disposed within the casing structure;
- and
- a sealing arrangement coupled to the casing structure,
- wherein the sealing arrangement comprises an abrasion portion configured to provide a seal with a tip of the turbomachine blade, wherein the abrasion portion includes a lattice structure having a lattice density that increases along a radial direction of the machine.
A method of manufacturing a fluid flow machine, the method comprising:
- producing a sealing arrangement comprising an abrasion portion, the abrasion portion including a lattice structure;
- and
- coupling the sealing arrangement to a casing structure such that the abrasion portion is configured to provide a seal with a tip of a turbomachine blade disposed within the casing structure,
- wherein producing the sealing arrangement includes forming the abrasion portion, wherein the lattice structure has a lattice density that increases along a radial direction of the machine.
Dependencies are inferred from the claim text.