Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Fanping Sun0
Michael G. McCaffrey0
Zaffir A. Chaudhry0
Date of Patent
September 17, 2019
Patent Application Number
15406271
Date Filed
January 13, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
A system for modulating turbine blade tip clearance is provided. The system may comprise an actuation control system having at least one actuator configured to modulate turbine blade tip clearance. Each actuator may comprise a solid-state motion amplification device such as a flextensional actuator. Each actuator may be in operable communication with a blade outer air seal (BOAS) segment or a BOAS mounting block. The actuators may be configured to move the BOAS segment and/or the BOAS mounting block in a radial direction from a first position to a second position to control tip clearance.
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