Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 18, 2011
Patent Application Number
12276325
Date Filed
November 22, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A rim cavity seal arrangement for a gas turbine engine, where the rim cavity is formed between two rotor disk stages with a stator vane assembly positioned between the rotor disks and extending into the rim cavity. A cover plate secured onto a side of the rotor disk includes a plurality of cooling air injectors directed to discharge cooling air into an annular groove formed on the underside of the vane endwall adjacent to the rotor disk to form an air cushion that seals the rim cavity from hot gas ingestion. The cover plate forms a cooling air supply passage with the rotor disk side to supply the injectors, and the cover plate includes at least one metering hole to meter the pressurized air into the injectors.
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