The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2019
Filed:
Jan. 13, 2017
United Technologies Corporation, Farmington, CT (US);
Fanping Sun, Glastonbury, CT (US);
Zaffir A. Chaudhry, S. Glastonbury, CT (US);
Lee A. Hoffman, Vernon, CT (US);
Hailing Wu, South Windsor, CT (US);
Seung Bum Kim, Glastonbury, CT (US);
Michael G. McCaffrey, Windsor, CT (US);
Joel H. Wagner, Wethersfield, CT (US);
United Technologies Corporation, Farmington, CT (US);
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 between a turbine blade tip and a blade outer air seal (BOAS). Each actuator may be coupled to the BOAS. Each actuator may comprise a solid-state motion amplification device such as a flextensional actuator. The actuators may be configured to move the BOAS in a radial direction from a first position to a second position to control tip clearance.