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公开(公告)号：US11242763B2
公开(公告)日：2022-02-08
申请号：US16166602
申请日：2018-10-22
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Andreas Mastorakis , Manoj Kumar Jain , Nagamohan Govinahalli Prabhakar
Abstract: A platform for use between adjacent propulsion rotor airfoils joined to a rotor disk to provide an inner flowpath boundary includes: an axially extending I-beam supporting a radially outer skin having a flowpath surface; the I-beam including an inner I-flange disposed at an inner edge of an axially extending I-web, and an outer I-flange disposed at an outer edge of the I-web; the I-beam including a laterally-extending forward end flange at a forward end of the I-web, and a laterally-extending aft end flange at an aft end of the I-web; and the radially outer skin disposed on top of and joined to the radially outer I-flange such that the forward end flange and the aft end flange abut the outer skin.
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公开(公告)号：US11215069B2
公开(公告)日：2022-01-04
申请号：US15596523
申请日：2017-05-16
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Thomas Chadwick Waldman , Manoj Kumar Jain , Mojibur Rahman , Nitesh Jain , Nagamohan Govinahalli Prabhakar , Scott Roger Finn , Apostolos Pavlos Karafillis
Abstract: A softwall containment system for a machine includes an inner wall circumscribing a bladed rotatable member of the machine and extending from a forward end to an aft end. The softwall containment system also includes an outer wall circumscribing the inner wall and extending from a forward end to an aft end. The outer wall is spaced radially outwardly from the inner wall. The outer wall extends axially between a first joint coupling the forward end of the inner wall to the forward end of the outer wall and a second joint coupling the aft end of the inner wall to the aft end of the outer wall. The softwall containment system also includes an anti-ballistic material wrap covering the outer wall, the anti-ballistic material wrap including at least one of a first extension extending forward of the first joint and a second extension extending aft of the second joint.
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公开(公告)号：US11066958B2
公开(公告)日：2021-07-20
申请号：US16810186
申请日：2020-03-05
Applicant: General Electric Company
Inventor： Apostolos Pavlos Karafillis , Manoj Kumar Jain , Thomas Chadwick Waldman , Nagamohan Govinahalli Prabhakar
Abstract: A bolted joint apparatus includes: a first component including a first row of first bolt holes extending therethrough; a second component including a second row of second bolt holes extending therethrough wherein the second bolt holes are aligned coaxially with the first bolt holes, a plurality of fasteners, each of fasteners disposed through aligned pairs of the first and second bolt holes to couple together the first and second components, each of the fasteners including a shank; and crushable spacers disposed around the shanks of the fasteners, the crushable spacers clamped in compression between the fasteners and one of the components, wherein each of the crushable spacers has a tubular body interconnecting first and second enlarged ends, the tubular body being defined by a peripheral wall which incorporates at least one weakening feature.
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公开(公告)号：US20180298780A1
公开(公告)日：2018-10-18
申请号：US15486789
申请日：2017-04-13
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Thomas Chadwick Waldman , Manoj Kumar Jain , Mojibur Rahman , Nitesh Jain , Nagamohan Govinahalli Prabhakar , Scott Roger Finn , Apostolos Pavlos Karafillis
CPC classification number: F01D21/045 , F01D25/24 , F04D29/526 , F05D2220/32 , F05D2220/36 , F05D2240/14 , F05D2250/292 , F05D2300/603
Abstract: A backsheet for use in a turbine engine fan case includes a first portion including a first portion first end and an opposing first portion second end. The first portion is tapered between the first portion first end and the first portion second end. The backsheet also includes a second portion coupled to the first portion. The second portion includes a second portion first end and an opposing second portion second end. The second portion defines a constant thickness between the second portion first end and the second portion second end.
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公开(公告)号：US11499448B2
公开(公告)日：2022-11-15
申请号：US16424843
申请日：2019-05-29
Applicant: General Electric Company
Inventor： Abhijeet Jayshingrao Yadav , Nagamohan Govinahalli Prabhakar , Nicholas Joseph Kray , Shivam Mittal , Praveen Sharma , Bhujabal Prashant Mahadeo , Ravindra Shankar Ganiger
Abstract: A composite fan casing for a gas turbine engine defining a central axis is generally provided. The composite fan casing includes a core having a plurality of core layers of reinforcing fibers bonded together with a thermosetting polymeric resin and having an outer surface. The composite fan casing further includes at least one stiffener integrally coupled to an aft portion of the outer surface of the core relative to the central axis. Additionally, the at least one stiffener comprises an elastic material.
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Patent Agency Ranking
公开(公告)号：US20210062717A1
公开(公告)日：2021-03-04
申请号：US16550721
申请日：2019-08-26
Applicant: General Electric Company
Abstract: Composite components and methods for forming composite components are provided. For example, a composite component of a gas turbine engine comprises a composite material, a plurality of piezoelectric fibers, and an anti-icing mechanism. The anti-icing mechanism is in operative communication with the piezoelectric fibers such that the anti-icing mechanism is activated by one or more electrical signals from the piezoelectric fibers. In exemplary embodiments, the composite component is a composite airfoil and the anti-icing mechanism is one or more heating elements. Methods for forming composite components may comprise forming piezoelectric plies comprising piezoelectric fibers embedded in a matrix material; forming reinforcing plies comprising reinforcing fibers embedded in the matrix material; laying up the piezoelectric and reinforcing plies to form a ply layup; and processing the ply layup to form the composite component. Methods including forming a piece of piezoelectric material that is adhered to a composite component also are provided.
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公开(公告)号：US10704414B2
公开(公告)日：2020-07-07
申请号：US15455710
申请日：2017-03-10
Applicant: General Electric Company
Inventor： Nitesh Jain , Nicholas Joseph Kray , Manoj Kumar Jain , Mojibur Rahman , Nagamohan Govinahalli Prabhakar , Scott Roger Finn , Thomas Chadwick Waldman , Apostolos Pavlos Karafillis
IPC: F01D21/04
Abstract: A containment structure for surrounding a rotatable machine includes a double-walled inner shell having a forward end, an aft end, and a substantially cylindrical body extending therebetween. The inner shell includes an inner wall at least partially surrounding a bladed portion of the bladed rotor, and an outer portion that branches radially outward from the inner wall. The containment structure also includes a substantially cylindrical back sheet coupled to the outer portion and disposed radially outward of the inner wall.
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公开(公告)号：US20200040909A1
公开(公告)日：2020-02-06
申请号：US16051943
申请日：2018-08-01
Applicant: General Electric Company
Inventor： Manoj Kumar Jain , Nagamohan Govinahalli Prabhakar , Scott Roger Finn
Abstract: Walls of gas turbine engine casings, fan cases, and methods for forming walls, e.g., fan case walls, are provided. For example, a wall comprises a plurality of composite plies arranged in a ply layup. The wall is annular and circumferentially segmented into a plurality of regions that include at least one first region and at least one second region. The ply layup in the first and second regions is different such that the ply layup is non-axisymmetric. An exemplary fan case comprises an annular inner shell, a filler layer, an annular back sheet, and an annular outer layer. The back sheet is circumferentially segmented into a plurality of regions, including at least one first region and at least one second region, and comprises a plurality of composite plies arranged in a ply layup that is different in the first and second regions such that the ply layup is non-axisymmetric.
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公开(公告)号：US20180258796A1
公开(公告)日：2018-09-13
申请号：US15455710
申请日：2017-03-10
Applicant: General Electric Company
Inventor： Nitesh Jain , Nicholas Joseph Kray , Manoj Kumar Jain , Mojibur Rahman , Nagamohan Govinahalli Prabhakar , Scott Roger Finn , Thomas Chadwick Waldman , Apostolos Pavlos Karafillis
Abstract: A containment structure for surrounding a rotatable machine includes a double-walled inner shell having a forward end, an aft end, and a substantially cylindrical body extending therebetween. The inner shell includes an inner wall at least partially surrounding a bladed portion of the bladed rotor, and an outer portion that branches radially outward from the inner wall. The containment structure also includes a substantially cylindrical back sheet coupled to the outer portion and disposed radially outward of the inner wall.
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公开(公告)号：US20180080339A1
公开(公告)日：2018-03-22
申请号：US15705712
申请日：2017-09-15
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Benjamin James Roby , Vijesh Shetty Anangoor , Nitesh Jain , Sreekanth Kumar Dorbala , Nagamohan Govinahalli Prabhakar , K Phani SriKrishna Chinnapragada
IPC: F01D21/04
CPC classification number: F01D21/045 , F01D25/24 , F02C7/04 , F05D2250/182 , F05D2250/232 , F05D2250/283 , F05D2300/603 , Y02T50/672
Abstract: Fan blade containment system includes a composite fan case with an annular composite shell extending from forward flange downstream to aft flange, and circumferentially varying thickness portion of composite shell. Annular composite back sheet spaced radially outwardly of annular composite shell has annular filler layer disposed radially therebetween. Annular forward and aft seams between annular composite shell and composite back sheet may axially trap filler layer. Circumferentially varying thickness portion may include aftwardly extending fingers of composite back sheet in aft seam and first thickness of fingers thicker than second thickness of composite shell circumferentially between fingers. Composite shell may extend from forward flange to aft flange. Aft flange bolted to metallic flange of metallic fan casing aft of aft flange. Containment system may circumscribe and surround fan and fan blades of gas turbine engine fan section.
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