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公开(公告)号：US20180283187A1
公开(公告)日：2018-10-04
申请号：US15474049
申请日：2017-03-30
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Andreas Mastorakis
Abstract: Fan blade platform includes axially extending I beam supporting radially outer skin having flowpath surface. I beam includes upper and lower or radially outer and inner I flanges on radially outer and inner beam ends of axially extending I web. Radially outer skin on top of and bonded or otherwise attached to radially outer I flange. I beam may be integral and monolithic and made from a non-metallic composite or thermoplastic material and have post cure formed weight relief holes. I beam may include oppositely facing or back to back first and second C beams. First C beam including axially extending first C web disposed between radially outer and inner first C flanges. Second C beam including axially extending second C web disposed between upper and lower or radially outer and inner second C flanges. I beam may be asymmetrical about center plane of I web.
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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：US20180238346A1
公开(公告)日：2018-08-23
申请号：US15438284
申请日：2017-02-21
Applicant: General Electric Company
Inventor： Veeraraju Vanapalli , Nitesh Jain , Viswanadha Gupta Sakala , Bhaskar Nanda Mondal , Nicholas Joseph Kray
Abstract: A turbine engine that includes a rotor assembly including a plurality of rotor blades, an outer case positioned radially outward from the plurality of rotor blades, and an annular ring coupled to the outer case and positioned between the plurality of rotor blades and the outer case. The annular ring is configured to restrict thermal contraction of the outer case towards the plurality of rotor blades.
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公开(公告)号：US09976429B2
公开(公告)日：2018-05-22
申请号：US14734091
申请日：2015-06-09
Applicant: General Electric Company
Inventor： Nicholas Joseph Kray , Baskaran Bhuvaraghan , Nitesh Jain
CPC classification number: F01D5/3023 , B29C70/345 , B29C70/48 , B29D99/0025 , F01D5/028 , F01D5/282 , F01D5/3007 , F05D2220/36
Abstract: A gas turbine engine composite disk includes dovetail slots between disk posts extending radially inwardly from a periphery, a hub ring of composite plies circumscribed about a centerline axis, and radial plies extending radially away from hub ring into disk posts. A segmented intermediate ring concentric with and located radially outwardly of hub ring includes intermediate ring segments having nested plies with annular bases circumscribed about centerline axis and substantially radially extending clockwise and counter-clockwise radial ply arms. An outer segmented ring may be concentric with and located radially outwardly of intermediate ring, include annular outer ring segments with circumferentially stacked composite plies disposed within intermediate ring segments between clockwise and counter-clockwise radial ply arms and radially outwardly of annular bases. An outer skin of outermost composite covering plies may extend circumferentially around composite disk. Circumferential and radial composite plies may include circumferentially and radially oriented fibers.
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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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Patent Agency Ranking
公开(公告)号：US09868259B2
公开(公告)日：2018-01-16
申请号：US14857858
申请日：2015-09-18
Applicant: General Electric Company
Inventor： Mark Ernest Vermilyea , Nicholas Joseph Kray
CPC classification number: B29C70/382 , B29C70/386 , B29C70/54
Abstract: A fiber placement system is provided that can include a compaction roller defining a plurality of openings between a roller outer surface and a roller inner surface. The plurality of openings are in fluid communication with a vacuum source. A cover can be included in or on the compaction roller so as to block airflow through a portion of the openings. The fiber placement system can also include a head including a frame and at least one supply spool mounted on the frame. The supply spool is supported on a hub for rotation, and the compaction roller is aligned to receive one or more fiber tows from the at least one supply spool. Methods are also provided for laying a prepreg tow material using automated fiber placement.
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公开(公告)号：US09745851B2
公开(公告)日：2017-08-29
申请号：US14597278
申请日：2015-01-15
Applicant: General Electric Company
Inventor： Qiang Li , Nicholas Joseph Kray
CPC classification number: F01D5/147 , F01D5/143 , F01D5/282 , F01D5/3007 , F05D2200/36 , F05D2220/32 , F05D2240/303 , F05D2300/10 , Y02T50/672 , Y02T50/673
Abstract: A composite blade includes a composite airfoil section having airfoil pressure and suction sides extending chordwise between airfoil leading and trailing edges, a dovetail root attached to airfoil section and a blade shank therebetween, and a metallic leading edge shield covering an axially extending portion of airfoil section including at least a portion of airfoil leading edge and a radially and chordwise extending portion of a leading edge portion of the blade shank. Leading edge portion may be cut back from airfoil leading edge and a shank leading edge aft or downstream of airfoil leading edge. A nose may extend along a shield leading edge of the metallic leading edge shield with pressure and suction side legs extending aftwardly from nose along airfoil pressure and suction sides. Light weight insert may be located between nose and airfoil leading edges.
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公开(公告)号：US20170226867A1
公开(公告)日：2017-08-10
申请号：US15018902
申请日：2016-02-09
Applicant: General Electric Company
Inventor： Phani Nandula , Suresh Subramanian , Nicholas Joseph Kray , Gregory Carl Gemeinhardt
CPC classification number: F01D5/147 , F01D5/282 , F01D21/045 , F02C3/06 , F05D2220/32 , F05D2300/603 , Y02T50/672
Abstract: An airfoil for an aircraft engine is provided. The airfoil may include a plurality of composite plies extending in a chordwise direction from a leading edge to a trailing edge and in a spanwise direction between an airfoil tip and an airfoil base. The airfoil may include at least one discontinuous ply having a first ply segment, a second ply segment, and a butt joint disposed between the first ply segment and the second ply segment. The butt joint may be disposed along a first fragment profile to frangibly attach the first and second ply segments.
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公开(公告)号：US09682756B1
公开(公告)日：2017-06-20
申请号：US15295259
申请日：2016-10-17
Applicant: General Electric Company
CPC classification number: B63H1/20 , B63B2748/00 , F01D5/30 , F05D2260/941 , Y02T50/672
Abstract: A propeller assembly includes a central hub including a first forward-facing end, a second aft-facing end, a hub body extending therebetween, and a plurality of channels spaced circumferentially around the central hub. The propeller assembly further includes blade wedges configured to be inserted into and to retain blades within the channels of the central hub. Each blade includes a blade dovetail including a dovetail face configured to engage a respective channel sidewall and/or a respective wedge sidewall. The dovetail face includes a bearing portion that engages the respective channel sidewall and/or the respective wedge sidewall and a clearance portion that is spaced from the respective channel sidewall and/or the respective wedge sidewall by a clearance gap during a first loading of the propeller assembly and that engages the respective channel sidewall or wedge sidewall during a second loading, the second loading greater than the first loading.
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公开(公告)号：US09475218B2
公开(公告)日：2016-10-25
申请号：US14221583
申请日：2014-03-21
Applicant: General Electric Company
Inventor： Mark Ernest Vermilyea , Nicholas Joseph Kray , Matthew Allen Radebach , Alexander Joseph Vallee, Jr. , Craig Douglas Carmichael
CPC classification number: B29C43/027 , B29C33/505 , B29C57/06 , B29C70/44 , B29C70/446 , B29C2043/028 , B29L2031/772
Abstract: An apparatus for forming a flange on a component is presented. The apparatus includes a mold disposed for the placement of the component thereon, a forming tool, and a tubular bladder. The forming tool is assembled to hold the component with a first portion extending into a space defined between the mold and the forming tool. The tubular bladder has a non-uniform wall thickness around its cross section along a longitudinal dimension of the bladder. The bladder is disposed in a step defined in the mold, and configured to impart a forming force to the portion extending into the space to form the flange on the component when the bladder is inflated. A method for forming the flange on the component is also provided.
Abstract translation: 提出了一种用于在部件上形成凸缘的装置。 该装置包括设置成用于将部件放置在其上的模具，成形工具和管状囊状物。 成形工具被组装以保持部件，其中第一部分延伸到限定在模具和成形工具之间的空间中。 管状囊在其横截面周围沿着膀胱的纵向尺寸具有不均匀的壁厚。 囊被设置在模具中限定的台阶中，并且被构造成当膨胀囊膨胀时，向延伸到空间中的部分施加成形力，以在部件上形成凸缘。 还提供了用于在部件上形成凸缘的方法。
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