公开(公告)号：US10823002B2

公开(公告)日：2020-11-03

申请号：US15979982

申请日：2018-05-15

Applicant: General Electric Company

Inventor： Ravindra Shankar Ganiger ,  Praveen Sharma ,  Shuvajyoti Ghosh ,  Amit Zutshi ,  Raghavendra Muralidhar ,  Rangasai Madoor Comandore

IPC: F01D25/16

Abstract: A turbine engine including a first static structure comprising a first material defining a first thermal expansion coefficient and a second static structure comprising a second material defining a second thermal expansion coefficient different from the first thermal expansion coefficient. The first static structure and the second static structure are together disposed in adjacent arrangement along a load direction. The first static structure and the second static structure together selectively define a gap therebetween along the load direction based at least on a load difference between the first static structure and the second static structure.

公开(公告)号：US10738653B2

公开(公告)日：2020-08-11

申请号：US15970203

申请日：2018-05-03

Applicant: General Electric Company

Inventor： Narayanan Payyoor ,  Satish K. Yadav ,  Shuvajyoti Ghosh ,  Ravindra Shankar Ganiger

IPC: F01D25/16 ,  F16C27/04 ,  F02C7/06 ,  F16C35/07 ,  F16C35/077

Abstract: A damper assembly includes a bearing assembly including a bearing outer race. A damper inner race is spaced from the bearing outer race and includes a plurality of circumferentially-spaced first openings. The damper assembly also includes a damper outer race spaced from damper inner race and a plurality of damper segments extending between the damper inner race and the damper outer race. Each damper segment includes a plurality of second openings.

公开(公告)号：US20190353051A1

公开(公告)日：2019-11-21

申请号：US15979982

申请日：2018-05-15

Applicant: General Electric Company

Inventor： Ravindra Shankar Ganiger ,  Praveen Sharma ,  Shuvajyoti Ghosh ,  Amit Zutshi ,  Raghavendra Muralidhar ,  Rangasai Madoor Comandore

IPC: F01D25/16

Abstract: A turbine engine including a first static structure comprising a first material defining a first thermal expansion coefficient and a second static structure comprising a second material defining a second thermal expansion coefficient different from the first thermal expansion coefficient. The first static structure and the second static structure are together disposed in adjacent arrangement along a load direction. The first static structure and the second static structure together selectively define a gap therebetween along the load direction based at least on a load difference between the first static structure and the second static structure.

公开(公告)号：US10400630B2

公开(公告)日：2019-09-03

申请号：US16185184

申请日：2018-11-09

Applicant: General Electric Company

Inventor： Ravindra Shankar Ganiger ,  Satish Kumar Yadav ,  Shuvajyoti Ghosh

IPC: F16C27/04 ,  F01D25/16 ,  F16F15/023 ,  F01D5/10 ,  F01D25/06

Abstract: Squeeze film damping systems and methods therefore are provided that include features for optimizing the damping response to vibrational loads experienced by a rotary component of a gas turbine engine. In one exemplary aspect, a damping system actively controls a dynamic sleeve to adjust the damping response. In particular, the dynamic sleeve is disposed within a chamber defined by a damper housing. The damping system controls the damper gap by translating the dynamic sleeve. When the dynamic sleeve is translated, a variable damper gap is varied, allowing for fluid to squeeze into or out of the damper gap, thereby adjusting the damping response to the vibration of the rotary component.

公开(公告)号：US10823228B2

公开(公告)日：2020-11-03

申请号：US16394180

申请日：2019-04-25

Applicant: General Electric Company

Inventor： Ravindra Shankar Ganiger ,  Shuvajyoti Ghosh ,  Shivaram Ac ,  Akash Joshi ,  Vidya Lokammanahalli Shivashankar

IPC: F16C19/06 ,  F16C25/08 ,  F04D29/056 ,  F02K3/06 ,  F04D29/32 ,  F04D29/053 ,  F16C35/073 ,  F16C39/02 ,  F16C19/22 ,  F01D25/16 ,  F04D29/66 ,  F01D21/04 ,  F02C7/06

Abstract: A hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radial inner end of the shaft extension, a radial outer end of the shaft extension fixedly coupled to a rotatable race of a bearing supporting the rotatable member, and a recoupler device formed of a shape memory alloy (SMA) material coupled in parallel with at least a portion of the shaft extension between the radial inner end and the radial outer end.

公开(公告)号：US10724400B2

公开(公告)日：2020-07-28

申请号：US15949427

申请日：2018-04-10

Applicant: General Electric Company

Inventor： Shivaram Ac ,  Vidyashankar Ramasastry Buravalla ,  Ravindra Shankar Ganiger ,  Shuvajyoti Ghosh ,  Akash Joshi

IPC: F01D25/16 ,  F02C7/20 ,  F16F15/02 ,  F16C19/54 ,  F16F15/023 ,  F02C7/06 ,  F16C19/26 ,  F16C27/04 ,  F16C27/06 ,  F16F1/22

Abstract: A support assembly for a load-bearing unit, a gas turbine engine including the support assembly, and a method of operation of the support assembly are provided. The support assembly includes a support element, a damper, and a variable stiffness member. The support element supports the load-bearing unit. The damper supports the support element and is configured to provide dampening of the load-bearing unit. The variable stiffness member is positioned between the damper and the load-bearing unit. The variable stiffness member is configured to provide a serial dampening of the load-bearing unit with the damper. The variable stiffness member includes a shape memory alloy.

公开(公告)号：US20190162077A1

公开(公告)日：2019-05-30

申请号：US15823631

申请日：2017-11-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shuvajyoti Ghosh ,  Ravindra Shankar Ganiger ,  Praveen Sharma ,  Ishita Sehgal ,  Prashant Bhujabal ,  Shivam Mittal

IPC: F01D25/16

Abstract: A support system for a gas turbine engine is provided. The support system includes a load-bearing unit that includes a first flange, a support element supporting the load-bearing unit and having a second flange, a fastener connecting the first flange and the second flange, a first super-elastic shape memory alloy component in contact with the first flange, and a second super-elastic shape memory alloy component in contact with the second flange. The first and the second super-elastic shape memory alloy components are configured to deform when a load exerted by the fastener exceeds a threshold load value of the fastener.

公开(公告)号：US20190128329A1

公开(公告)日：2019-05-02

申请号：US16226211

申请日：2018-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shuvajyoti Ghosh ,  Akash Joshi ,  Shivaram AC ,  Ravindra Shankar Ganiger ,  Praveen Sharma

IPC: F16C39/02 ,  F01D21/08 ,  F01D25/16 ,  F16C29/12 ,  F16C35/077 ,  F16C35/067

Abstract: A load reduction assembly includes an annular bearing cone configured to extend between a bearing assembly and a frame assembly and form a first load path therebetween. The load reduction assembly further includes an annular recoupler member configured to extend between the bearing assembly and the frame assembly and form a second load path therebetween. The second load path is parallel to the first load path. The recoupler member includes a shape memory alloy configured to change stiffness in response to a change in a stress condition, thereby regulating an imbalance condition of a rotor shaft coupled to the bearing assembly.

公开(公告)号：US20180112554A1

公开(公告)日：2018-04-26

申请号：US15331158

申请日：2016-10-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shuvajyoti Ghosh ,  Akash Joshi ,  Shivaram AC ,  Ravindra Shankar Ganiger ,  Praveen Sharma

IPC: F01D25/16 ,  F01D5/02 ,  F16C35/077 ,  F16C39/02

CPC classification number: F16C39/02 ,  F01D21/08 ,  F01D25/164 ,  F05D2260/15 ,  F05D2300/505 ,  F16C29/123 ,  F16C35/067 ,  F16C35/077 ,  F16C2202/06 ,  F16C2202/28 ,  F16C2360/23 ,  Y02T50/671

Abstract: A load reduction assembly includes an annular bearing cone configured to extend between a bearing assembly and a frame assembly and form a first load path therebetween. The load reduction assembly further includes an annular recoupler member configured to extend between the bearing assembly and the frame assembly and form a second load path therebetween. The second load path is parallel to the first load path. The recoupler member includes a shape memory alloy configured to change stiffness in response to a change in a stress condition, thereby regulating an imbalance condition of a rotor shaft coupled to the bearing assembly.

公开(公告)号：US11162419B2

公开(公告)日：2021-11-02

申请号：US15893800

申请日：2018-02-12

Applicant: General Electric Company

Inventor： Manoj Nayani ,  Praveen Sharma ,  Narayanan Payyoor ,  Shuvajyoti Ghosh

IPC: F02C7/06 ,  F02K3/06 ,  F16N7/40 ,  F16N39/02

Abstract: A gas turbine engine including a lubricant system defining a lubricant circuit through which a lubricant flows in fluid communication with a bearing assembly of the engine. The lubricant system selectively bypasses thermal communication of the lubricant and a heat sink based at least on a temperature of the lubricant within the lubricant circuit.