公开(公告)号：US11111811B2

公开(公告)日：2021-09-07

申请号：US16460060

申请日：2019-07-02

Applicant: United Technologies Corporation

Inventor： Michael M. Joly ,  Zaffir A. Chaudhry ,  Simon W. Evans ,  Gorazd Medic ,  Dilip Prasad

IPC: F01D17/16 ,  F01D9/04 ,  F01D17/24 ,  F02C9/22

Abstract: A stator vane for a gas turbine engine section includes a stator vane having an airfoil extending between a leading edge and a trailing edge. The airfoil has a suction side and a pressure side. There is at least one piezoelectric actuator for changing a shape of at least one of the leading edge and the trailing edge. A gas turbine engine is also disclosed.

公开(公告)号：US11105712B2

公开(公告)日：2021-08-31

申请号：US15946987

申请日：2018-04-06

Applicant: United Technologies Corporation

Inventor： Yan Chen ,  Danbing Seto ,  Sheridon Everette Haye ,  Allan J. Volponi ,  Zaffir A. Chaudhry ,  Gregory S. Hagen ,  Lichu Zhao ,  Robert H. Luppold

IPC: G01M13/045 ,  G01N33/28 ,  F01D25/18 ,  F02C7/06

Abstract: A method for fault diagnosis of a bearing includes detecting, using an oil debris monitor (ODM) sensor, ODM data corresponding to an amount of debris flowing downstream from the bearing. The method also includes detecting, using a vibration sensor, vibration data corresponding to vibration of the bearing during use. The method also includes determining, by a controller, a vibration stage flag corresponding to a severity of damage of the bearing based on the vibration data. The method also includes determining, by the controller, a severity level of the damage of the bearing based on a combination of the vibration stage flag and the ODM data. The method also includes outputting, by an output device, the severity level.

公开(公告)号：US11028725B2

公开(公告)日：2021-06-08

申请号：US16219240

申请日：2018-12-13

Applicant: United Technologies Corporation

Inventor： Zaffir A. Chaudhry ,  Andrzej Ernest Kuczek ,  Dilip Prasad

IPC: F01D17/12

Abstract: A morphing aerodynamic control surface geometry comprising a control surface having an articulated portion comprising a flexible skin coupled at an exterior of the articulated portion, the flexible skin comprising opposed interlocking elements sandwiched within a flexible polymer coupled to the interlocking elements; wherein the flexible skin is configured compliant responsive to an articulation of the articulated portion.

公开(公告)号：US20210003030A1

公开(公告)日：2021-01-07

申请号：US16460060

申请日：2019-07-02

Applicant: United Technologies Corporation

Inventor： Michael M. Joly ,  Zaffir A. Chaudhry ,  Simon W. Evans ,  Gorazd Medic ,  Dilip Prasad

IPC: F01D17/16 ,  F01D17/24 ,  F01D9/04

Abstract: A stator vane for a gas turbine engine section includes a stator vane having an airfoil extending between a leading edge and a trailing edge. The airfoil has a suction side and a pressure side. There is at least one piezoelectric actuator for changing a shape of at least one of the leading edge and the trailing edge. A gas turbine engine is also disclosed.

公开(公告)号：US20190310164A1

公开(公告)日：2019-10-10

申请号：US15946987

申请日：2018-04-06

Applicant: United Technologies Corporation

Inventor： Yan Chen ,  Danbing Seto ,  Sheridon Everette Haye ,  Allan J. Volponi ,  Zaffir A. Chaudhry ,  Gregory S. Hagen ,  Lichu Zhao ,  Robert H. Luppold

IPC: G01M13/04 ,  G01N33/28

Abstract: A method for fault diagnosis of a bearing includes detecting, using an oil debris monitor (ODM) sensor, ODM data corresponding to an amount of debris flowing downstream from the bearing. The method also includes detecting, using a vibration sensor, vibration data corresponding to vibration of the bearing during use. The method also includes determining, by a controller, a vibration stage flag corresponding to a severity of damage of the bearing based on the vibration data. The method also includes determining, by the controller, a severity level of the damage of the bearing based on a combination of the vibration stage flag and the ODM data. The method also includes outputting, by an output device, the severity level.

公开(公告)号：US10415418B2

公开(公告)日：2019-09-17

申请号：US15406271

申请日：2017-01-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Michael G. McCaffrey ,  Zaffir A. Chaudhry ,  Fanping Sun

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. 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.

公开(公告)号：US20180205276A1

公开(公告)日：2018-07-19

申请号：US15869817

申请日：2018-01-12

Applicant: United Technologies Corporation

Inventor： Jagadeesh Tangudu ,  Zaffir A. Chaudhry

IPC: H02K1/30 ,  H02K1/27

CPC classification number: H02K1/30 ,  H02K1/2753 ,  H02K1/2766 ,  H02K15/03 ,  H02K2201/06

Abstract: A rotor of an electric machine includes a rotor core including a rotor central core and at least one intermediate core element. A plurality of permanent magnets are located between the rotor central core and the at least one intermediate core element. The plurality of permanent magnets are secured to the rotor central core via one or more first mechanical interface connections. The one or more first mechanical interface connections are defined by a mechanical retaining feature located at one of the rotor central core or the plurality of permanent magnets, and a complimentary mechanical interface channel receptive of the mechanical retaining feature to secure the plurality of permanent magnets at the rotor central core.