Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brian D. Merry0
Gabriel L. Suciu0
John P. Nikkanen0
Date of Patent
May 31, 2011
Patent Application Number
11455980
Date Filed
June 19, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A counter-rotating blade stage in lieu of a stator stage may compensate for relatively low rotational speed of a gas turbine engine spool. A first spool may have at least two compressor blade stage and at least two turbine blade stage. A combustor is located between the at least two compressor blade stage and the at least two turbine blade stage along a core flowpath. The at least two counter-rotating compressor blade stage is interspersed with the first spool at least two compressor blade stage. A transmission couples the at least two additional compressor blade stage to the first spool for counter-rotation about the engine axis.
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