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公开(公告)号：US20190178104A1
公开(公告)日：2019-06-13
申请号：US16099775
申请日：2017-05-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Akash Joshi , Ravindra Shankar Ganiger , Vidyashankar Ramasastry Buravalla , Shuvajyoti Ghosh , Shivaram AC
IPC: F01D25/16
Abstract: A gas turbine engine includes a compressor section and a turbine section arranged in serial flow order. A shaft is provided rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. A bearing is also provided supporting rotation of the shaft, with a support element in turn supporting the bearing. The gas turbine engine also includes a superelastic member formed of a shape memory alloy supporting at least one of the support element or the bearing. The superelastic member is installed in a pre-stressed condition to enhance a dampening function of the superelastic member.
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公开(公告)号：US10274017B2
公开(公告)日：2019-04-30
申请号：US15331121
申请日：2016-10-21
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 method of reducing loads in a rotor assembly during an imbalance condition, a shape memory alloy recoupler device, and a hybrid bearing support system are provided. The hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radially inner end of the shaft extension, a radially 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 radially inner end and the radially outer end.
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公开(公告)号：US20180112672A1
公开(公告)日：2018-04-26
申请号：US15331121
申请日：2016-10-21
Applicant: General Electric Company
Inventor： Ravindra Shankar Ganiger , Shuvajyoti Ghosh , Shivaram AC , Akash Joshi , Vidya Lokammanahalli Shivashankar
IPC: F04D29/056 , F02K3/06 , F04D29/32 , F04D29/053 , F16C35/073 , F16C39/02
CPC classification number: F16C39/02 , F01D21/045 , F01D25/162 , F01D25/164 , F02C7/06 , F02K3/06 , F04D29/321 , F04D29/662 , F05D2220/36 , F05D2260/311 , F05D2300/505 , F16C19/06 , F16C19/225 , F16C25/083 , F16C35/073 , F16C2202/06 , F16C2202/08 , F16C2360/23 , Y02T50/671
Abstract: A method of reducing loads in a rotor assembly during an imbalance condition, a shape memory alloy recoupler device, and a hybrid bearing support system are provided. The hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radially inner end of the shaft extension, a radially outer end of said 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 said shaft extension between the radially inner end and the radially outer end.
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公开(公告)号：US20200025254A1
公开(公告)日：2020-01-23
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: F16C39/02 , F02K3/06 , F16C35/073 , F16C25/08 , F16C19/22 , F01D25/16 , F04D29/32 , F04D29/66 , F16C19/06 , F01D21/04
Abstract: A method of reducing loads in a rotor assembly during an imbalance condition, a shape memory alloy recoupler device, and a hybrid bearing support system are provided. The hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radially inner end of the shaft extension, a radially outer end of said 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 said shaft extension between the radially inner end and the radially outer end.
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公开(公告)号：US10196934B2
公开(公告)日：2019-02-05
申请号：US15041136
申请日：2016-02-11
Applicant: General Electric Company
Inventor： Esuff Khan , Shivaram Ac , Vidyashankar Ramasastry Buravalla , Shuvajyoti Ghosh , Akash Joshi
Abstract: A rotor support system for a gas turbine engine may generally include a bearing assembly and a load reduction member configured to be coupled between the bearing assembly and a support frame of the engine. The load reduction member may include a fuse portion configured to fail when a load transmitted through the load reduction member exceeds a predetermined load threshold. The system may also include a load recoupling member provided between the bearing assembly and the support frame. The load recoupling member may be formed from a super-elastic shape memory alloy that allows the load recoupling member to undergo recoverable deformation without failing when the fuse portion fails such that the load recoupling member maintains a mechanical connection between the bearing assembly and the support frame.
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Patent Agency Ranking
公开(公告)号：US11421551B2
公开(公告)日：2022-08-23
申请号：US16099775
申请日：2017-05-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Akash Joshi , Ravindra Shankar Ganiger , Vidyashankar Ramasastry Buravalla , Shuvajyoti Ghosh , Shivaram A C
IPC: F01D25/16
Abstract: A gas turbine engine includes a compressor section and a turbine section arranged in serial flow order. A shaft is provided rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. A bearing is also provided supporting rotation of the shaft, with a support element in turn supporting the bearing. The gas turbine engine also includes a superelastic member formed of a shape memory alloy supporting at least one of the support element or the bearing. The superelastic member is installed in a pre-stressed condition to enhance a dampening function of the superelastic member.
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公开(公告)号：US10584751B2
公开(公告)日：2020-03-10
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 , F04D29/056
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.
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公开(公告)号：US10197102B2
公开(公告)日：2019-02-05
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
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.
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公开(公告)号：US20170234157A1
公开(公告)日：2017-08-17
申请号：US15041136
申请日：2016-02-11
Applicant: General Electric Company
Inventor： Esuff Khan , Shivaram Ac , Vidyashankar Ramasastry Buravalla , Shuvajyoti Ghosh , Akash Joshi
IPC: F01D25/16
CPC classification number: F01D25/164 , F01D21/00 , F01D21/045 , F01D21/08 , F01D25/162 , F05D2220/32 , F05D2240/24 , F05D2240/242 , F05D2240/54 , F05D2240/60 , F05D2240/91 , F05D2260/15 , F05D2300/1723 , F05D2300/173 , F05D2300/174 , F05D2300/505 , Y02T50/671
Abstract: A rotor support system for a gas turbine engine may generally include a bearing assembly and a load reduction member configured to be coupled between the bearing assembly and a support frame of the engine. The load reduction member may include a fuse portion configured to fail when a load transmitted through the load reduction member exceeds a predetermined load threshold. The system may also include a load recoupling member provided between the bearing assembly and the support frame. The load recoupling member may be formed from a super-elastic shape memory alloy that allows the load recoupling member to undergo recoverable deformation without failing when the fuse portion fails such that the load recoupling member maintains a mechanical connection between the bearing assembly and the support frame.
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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.
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