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US 6,553,639 B2Granted
Method of manufacturing seals
AssigneeROLLS-ROYCE plc
InventorsJohn Hobbs, David W Richards
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a leaf seal for use between rotating components comprises forming corrugations within a metallic strip and feeding the corrugated strip into a seal guide. The corrugated strip is then pressed into the guide by an angled ram such that the corrugations lie at an acute angle to the perpendicular axis. The strip is then secured in a seal carrier, the free ends of the corrugations thus forming the angled sealing leaves of a leaf seal.
Claims11
A method of manufacturing a leaf seal suitable for use within a clearance between two components comprising by the steps of:
- a) providing a strip of seal material,
- b) forming corrugations within said strip,
- c) feeding said strip into guide means,
- d) pressing said corrugated strip into said guide means by angled ram means such that the corrugations lie at an acute angle to the perpendicular axis,
- e) securing said corrugated strip in a seal carrier;
- and
- f) cutting the free ends of the corrugations thus forming angled leaves of a leaf seal.
4 more elements
Dependencies are inferred from the claim text.