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公开(公告)号：US20240352864A1
公开(公告)日：2024-10-24
申请号：US18357301
申请日：2023-07-24
Applicant: General Electric Company
Inventor： Narendra Anand Hardikar , David Raju Yamarthi , Ravindra Shankar Ganiger , Mohan Kannaiah Raju
CPC classification number: F01D11/08 , F01D25/16 , F05D2220/32 , F05D2240/50 , F05D2240/55
Abstract: A turbine engine includes a rotor, a stator having a carrier, and a seal assembly that is disposed between the rotor and the stator. The seal assembly includes a plurality of seal segments. The plurality of seal segments includes a seal segment having a seal face forming a fluid bearing with the rotor, a body, and an aft bearing extending from the body. The turbine engine further includes a roller assembly having one or more rolling elements coupled to one of the aft bearing or the carrier. The one or more rolling elements in rolling contact with the other of the aft bearing or the carrier.
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公开(公告)号：US20240318572A1
公开(公告)日：2024-09-26
申请号：US18189424
申请日：2023-03-24
Applicant: General Electric Company
Inventor： Narendra Anand Hardikar , David Raju Yamarthi , Rahul Anil Bidkar , Ravindra Shankar Ganiger , Prateek Jalan , Deepak Trivedi
IPC: F01D11/08
CPC classification number: F01D11/08 , F05D2220/30 , F05D2230/60
Abstract: A turbine engine is provided. The turbine engine defines a radial direction and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly comprising a first seal segment, the seal segment having a seal face configured to form a fluid bearing with the rotor; and a seal support assembly, the seal support assembly comprising a prestressed spring assembly extending from the seal segment for biasing the seal segment along the radial direction.
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公开(公告)号：US11988096B2
公开(公告)日：2024-05-21
申请号：US17841847
申请日：2022-06-16
Inventor： Ravindra Shankar Ganiger , Neelesh Nandkumar Sarawate , Rahul Anil Bidkar , Narendra Anand Hardikar , Kevin Randall McManus , Steven Douglas Johnson , Prateek Jalan , Antonio Guijarro Valencia , Julius John Montgomery , Rodrigo Rodriguez Erdmenger , Jose Maria Rey Villazon
CPC classification number: F01D11/003 , F01D11/001 , F01D11/02 , F05D2220/323 , F05D2240/56
Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.
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公开(公告)号：US20230399957A1
公开(公告)日：2023-12-14
申请号：US18081245
申请日：2022-12-14
Applicant: General Electric Company
Inventor： Narendra Anand Hardikar , Scott Alan Schimmels
IPC: F01D11/00
CPC classification number: F01D11/003 , F05D2240/55
Abstract: A rotary machine includes a stator and a rotor configured to rotate with respect to the stator. The rotor is arranged with the stator at a rotor-stator interface and defines a rotor face. Further, the rotary machine includes a seal assembly at the rotor-stator interface. The seal assembly includes at least one seal and a groove formed into the rotor at the rotor-stator interface. In addition, the seal assembly includes a removable insert positioned within the groove of the seal assembly and defining at least a portion of the rotor face. As such, during operation of the rotary machine, if the rotor and the stator make undesirable contact at the rotor-stator interface, the removable insert becomes damaged to prevent damage from occurring to the rotor and the stator.
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公开(公告)号：US20230279781A1
公开(公告)日：2023-09-07
申请号：US17841847
申请日：2022-06-16
Inventor： Ravindra Shankar Ganiger , Neelesh Nandkumar Sarawate , Rahul Anil Bidkar , Narendra Anand Hardikar , Kevin Randall McManus , Steven Douglas Johnson , Prateek Jalan , Antonio Guijarro Valencia , Julius John Montgomery , Rodrigo Rodriguez Erdmenger , Jose Maria Rey Villazon
CPC classification number: F01D11/003 , F01D11/02 , F01D11/001 , F05D2240/56 , F05D2220/323
Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.
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Patent Agency Ranking
公开(公告)号：US20180252317A1
公开(公告)日：2018-09-06
申请号：US15450130
申请日：2017-03-06
Applicant: General Electric Company
Inventor： Brian Joseph Prenger , Richard Alan Wesling , Nathan Evan McCurdy Gibson , Ravindra Shankar Ganiger , Narendra Anand Hardikar , Anand Aravindrao Kulkarni
IPC: F16J15/447 , F16J15/02 , F01D11/02 , F04D29/08
CPC classification number: F16J15/447 , F01D11/001 , F01D11/003 , F01D11/02 , F01D11/025 , F04D29/164 , F04D29/526 , F05D2260/38 , F05D2260/52
Abstract: Aspirating face seal between high and low pressure regions of turbomachine between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces, non-rotatable face surface mounted on annular slider on non-rotatable member. Retracting means retracts annular slider away from rotatable member and non-rotatable face surface away from rotatable surface and includes circumferentially spaced apart non-coiled springs axially disposed between slider and non-rotatable engine member. Leaf springs may include first and second ends mounted or attached to first and second mounting lugs or tabs attached to non-rotatable member and slider respectively and middle portion between ends. Springs oriented for retracting slider if slider contacts rotatable member. Primary and starter seal teeth may be mounted on carrier on rotatable member. Primary seal tooth may be on non-rotatable member and starter seal tooth on rotatable member.
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公开(公告)号：US20250067192A1
公开(公告)日：2025-02-27
申请号：US18942835
申请日：2024-11-11
Applicant: General Electric Company
Inventor： Narendra Anand Hardikar , Scott Alan Schimmels
IPC: F01D11/00 , F16J15/3284
Abstract: A seal assembly for rotary machines having a wear protection assembly with an abradable covering. The wear protection assembly has one or more wear protection features that enable in-operation opening of the seal assembly by increasing a clearance between a seal rotor and a seal slider of the seal assembly. In particular, the wear protection assembly is configured to open the seal assembly and increase the clearance of the seal rotor and the seal slider during slider air-bearing wear conditions, slider counterbore wear conditions, rotor air-bearing wear conditions, or extreme vibration wear conditions. Under such or similar wear conditions (or under conditions preceding or leading up to a wear condition), the wear protection assembly yields a pressure gradient and/or a fluid flow that oppose the forces acting to decrease the clearance between the seal rotor and the seal slider.
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公开(公告)号：US20250035005A1
公开(公告)日：2025-01-30
申请号：US18536843
申请日：2023-12-12
Applicant: General Electric Company
Inventor： Deepak Trivedi , Rahul Anil Bidkar , Bugra Han Ertas , Ravindra Shankar Ganiger , Narendra Anand Hardikar
Abstract: A seal assembly for a turbomachine includes a rotating component, a non-rotating component having a ring carrier, a face seal ring, and a joint disposed between the ring carrier and the non-rotating component. The non-rotating component is arranged with the rotating component at a sealing interface. The joint is capable of linear and tilt displacement to allow the non-rotating component to displace with respect to the rotating component. The sealing interface defines a gap between the face seal ring and the rotating component. The seal assembly also includes at least one damping element arranged with the ring carrier for maintaining the seal assembly centrally in a radial direction in the turbomachine. Further, the damping element(s) includes at least one mass element.
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公开(公告)号：US20240318566A1
公开(公告)日：2024-09-26
申请号：US18189408
申请日：2023-03-24
Applicant: General Electric Company
Inventor： Grant Robert Portune , Steven Douglas Johnson , Mallikarjun Metri , Ajith Jogi , Pratish Patil , Nageswar Rao Ganji , Rahul Anil Bidkar , Prateek Jalan , Ravindra Shankar Ganiger , David Raju Yamarthi , Narendra Anand Hardikar , Chandrashekhar Kandukuri
CPC classification number: F01D11/001 , F01D11/025 , F01D11/04 , F01D25/22 , F16J15/40 , F16J15/445 , F16J15/164
Abstract: A turbine engine is provided. The gas turbine engine defines a radial direction and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly comprising a plurality of seal segments, the plurality of seal segments having a seal segment, the seal segment having a seal face configured to form a fluid bearing with the rotor; and a seal support assembly, the seal support assembly comprises a pneumatic engagement assembly operable to bias the seal segment along the radial direction during operation of the turbine engine.
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公开(公告)号：US12006829B1
公开(公告)日：2024-06-11
申请号：US18317229
申请日：2023-05-15
Applicant: General Electric Company
Inventor： David Raju Yamarthi , Ravindra Shankar Ganiger , Narendra Anand Hardikar , Rahul Anil Bidkar , Deepak Trivedi , Prateek Jalan
IPC: F01D11/16
CPC classification number: F01D11/16 , F05D2240/55 , F05D2260/38
Abstract: A turbomachine includes a rotor shaft having an outer surface, a seal carrier forming an annulus about the rotor shaft, and a seal member. The seal carrier at least partially defines a pressure chamber. The turbomachine further includes a seal member support system including a flex body having a contact portion in contact with the seal carrier, and a flex portion extending from the contact portion towards the outer surface of the rotor shaft. The flex portion is coupled to the seal member and is configured to hold the seal member at a radial distance away from the outer surface of the rotor shaft when a pressure inside the pressure chamber is equal to or below a minimum pressure threshold value, and to flex and move the seal member towards the outer surface of the rotor when the pressure inside the pressure chamber exceeds the minimum pressure threshold value.
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