公开(公告)号：US10415419B2

公开(公告)日：2019-09-17

申请号：US15406324

申请日：2017-01-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Lee A. Hoffman ,  Hailing Wu ,  Seung Bum Kim ,  Michael G. McCaffrey ,  Joel H. Wagner

IPC: F01D11/22 ,  F01D11/18

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.

公开(公告)号：US20190010823A1

公开(公告)日：2019-01-10

申请号：US15406324

申请日：2017-01-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Lee A. Hoffman ,  Hailing Wu ,  Seung Bum Kim ,  Michael G. McCaffrey ,  Joel H. Wagner

IPC: F01D11/22 ,  F01D11/18 ,  F03G7/06

CPC classification number: F01D11/22 ,  F01D11/18 ,  F05D2240/11 ,  F05D2300/505

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.