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公开(公告)号：US20220331875A1
公开(公告)日：2022-10-20
申请号：US17232516
申请日：2021-04-16
Applicant: General Electric Company , Concept Laser GmbH
Inventor： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US20220331869A1
公开(公告)日：2022-10-20
申请号：US17232467
申请日：2021-04-16
Applicant: General Electric Company , Concept Laser GmbH
Inventor： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Adam Garret Susong , Peter Pontiller-Schymura
Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US10508554B2
公开(公告)日：2019-12-17
申请号：US14923693
申请日：2015-10-27
Applicant: General Electric Company
Inventor： Rohit Chouhan , Shashwat Swami Jaiswal , Gunnar Leif Siden , Zachary James Taylor
Abstract: A turbine bucket according to embodiments includes: a base; a blade coupled to base and extending radially outward from base, blade including: a body having: a pressure side; a suction side opposing pressure side; a leading edge between pressure side and suction side; and a trailing edge between pressure side and suction side on a side opposing leading edge; and a plurality of radially extending cooling passageways within body; and a shroud coupled to blade radially outboard of blade, shroud including: a plurality of radially extending outlet passageways fluidly connected with a first set of the plurality of radially extending cooling passageways within body; and an outlet path extending at least partially circumferentially through shroud and fluidly connected with all of a second, distinct set of the plurality of radially extending cooling passageways within body.
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公开(公告)号：US10202852B2
公开(公告)日：2019-02-12
申请号：US14942350
申请日：2015-11-16
Applicant: General Electric Company
Inventor： Shashwat Swami Jaiswal , Rohit Chouhan
Abstract: A rotor blade includes an airfoil portion that extends in a radial direction from a root end to a tip end. A plurality of internal airfoil cooling passages is defined in the airfoil portion. The rotor blade also includes a tip shroud. The tip shroud includes a shroud plate coupled to the tip end. A plurality of tip shroud cooling passages is defined within the shroud plate. Each of the tip shroud cooling passages extends within the shroud plate in a direction generally transverse to the radial direction. Each tip shroud passage includes an inlet coupled in flow communication with at least one of the airfoil cooling passages, and an exit opening defined in, and extending therethrough, a radially outer surface of the tip shroud. The exit opening is coupled in flow communication with the inlet.
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公开(公告)号：US10001019B2
公开(公告)日：2018-06-19
申请号：US14638531
申请日：2015-03-04
Applicant: General Electric Company
Inventor： Rohit Chouhan , Shashwat Swami Jaiswal
CPC classification number: F01D5/20 , F01D5/18 , F02C3/04 , F05D2220/32 , F05D2240/307 , F05D2240/35 , F05D2250/121 , F05D2250/141 , F05D2260/20
Abstract: A turbine rotor blade includes a tip portion having a pressure tip wall and a suction tip wall, a tip leading edge and a tip trailing edge. Also included is a squealer cavity at least partially defined by the pressure tip wall and the suction tip wall. Further included is at least one hole defined by the suction tip wall, the at least one hole configured to bleed a cooling flow out of the squealer cavity into a hot gas path to reduce pressure within the squealer cavity. Yet further included is a main body having a suction side wall and a pressure side wall each extending from a root portion of the turbine rotor blade to the tip portion.
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Patent Agency Ranking
公开(公告)号：US12162221B2
公开(公告)日：2024-12-10
申请号：US17232434
申请日：2021-04-16
Applicant: General Electric Company , Concept Laser GmbH
Inventor： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
IPC: B29C64/371 , B22F10/28 , B22F10/322 , B22F12/70 , B29C64/153 , B33Y10/00 , B33Y30/00 , B33Y40/00
Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum. The return manifold may evacuate process gas from the irradiation plenum. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and into the return manifold.
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公开(公告)号：US20240165710A1
公开(公告)日：2024-05-23
申请号：US18497285
申请日：2023-10-30
Applicant: General Electric Company
Inventor： Shashwat Swami Jaiswal , Subrata Pal , Anindya Kanti De , Cassidy C. Shibiya , Vadim Bromberg , Jack Bernard White
IPC: B22F12/70 , B29C64/371 , B33Y30/00
CPC classification number: B22F12/70 , B29C64/371 , B33Y30/00
Abstract: Embodiments of the present disclosure are directed to a gas flow delivery apparatus and systems of an additive manufacturing system. The gas delivery apparatus comprises a first conduit having an elbow and an outer diameter DA and at least one second conduit fluidly coupled to the first conduit at a mixing region. The mixing region is positioned downstream of the elbow of the first conduit, and the mixing region is at least a distance Z from a center line of the at least one second conduit to the elbow. A diffuser is fluidly coupled to the first conduit downstream of the mixing region, the diffuser comprising an outlet having a perforated plate.
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公开(公告)号：US11938539B2
公开(公告)日：2024-03-26
申请号：US17232516
申请日：2021-04-16
Applicant: General Electric Company , Concept Laser GmbH
Inventor： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
CPC classification number: B22F10/77 , B22F10/28 , B22F12/33 , B22F12/70 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B22F2201/10
Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber.
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公开(公告)号：US20220332049A1
公开(公告)日：2022-10-20
申请号：US17232434
申请日：2021-04-16
Applicant: General Electric Company , Concept Laser GmbH
Inventor： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
IPC: B29C64/371 , B29C64/153 , B22F10/28 , B22F12/70 , B33Y10/00 , B33Y30/00
Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US10301945B2
公开(公告)日：2019-05-28
申请号：US14974155
申请日：2015-12-18
Applicant: General Electric Company
Inventor： Rohit Chouhan , Randall Richard Good , Hiteshkumar Rameshchandra Mistry , Shashwat Swami Jaiswal
Abstract: A turbine rotor blade that includes: an airfoil defined between a pressure face and a suction face; a tip shroud that includes a seal rail projecting from an outboard surface and, formed thereon, a cutter tooth; and a cooling configuration that includes a cooling channel for receiving and directing a coolant through an interior of the rotor blade. The cooling channel may include fluidly connected segments, in which: a supply segment extends radially through the airfoil; a cutter tooth segment is formed within the cutter tooth of the seal rail; and branching segments formed within at least one of the tip shroud and an outboard region of the airfoil. Each of the branching segments may extend between an upstream port, which connects to the cutter tooth segment, and an outlet port, which is formed on a target surface area, so that the branching segment bisects a target interior region.
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