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公开(公告)号：US11015698B2
公开(公告)日：2021-05-25
申请号：US16148085
申请日：2018-10-01
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Yiwei Jiang , Michael R. Blewett
IPC: F02C7/32 , F16H57/02 , F16H57/025
Abstract: A link for mounting a first component to a second component according to an example of the present disclosure includes a first piece connectable to the first component, a second piece connectable to the second component, the second piece includes a main body portion receivable in an opening in the first piece. A primary fastener is configured to retain the main body portion of the second piece in the opening. A secondary fastener is configured to retain the main body portion of the second piece in the opening, the secondary fastener capable of withstanding higher loads than the primary fastener. A gas turbine engine assembly and a method of constraining a gearbox with respect to an engine are also disclosed.
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公开(公告)号：US10066552B2
公开(公告)日：2018-09-04
申请号：US15069420
申请日：2016-03-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Yiwei Jiang , Michael R. Blewett
IPC: F02C7/32 , F16H57/025 , F01D25/28 , F16H57/028 , B64D27/26
CPC classification number: F02C7/32 , B64D2027/268 , F01D25/28 , F05D2260/30 , F05D2260/311 , F05D2260/36 , F05D2260/96 , F16H57/025 , F16H57/028
Abstract: A mounting link between an engine and a gearbox comprises an engine attachment piece, a gearbox attachment piece, and primary and secondary retention fasteners. The engine attachment piece is rotatably secured to the engine, and the gearbox attachment piece is rotatably secured to the gearbox. The primary retention fastener rigidly constrains the gearbox attachment piece with respect to the engine attachment piece in a single degree of freedom, but is configured to shear at a breakpoint load. The secondary retention fastener constrains the gearbox attachment piece loosely with respect to the engine attachment piece, and can withstand the breakpoint load. The gearbox attachment piece and engine attachment piece abut in a friction fit that provides Coulomb damping.
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公开(公告)号：US20170260909A1
公开(公告)日：2017-09-14
申请号：US15069431
申请日：2016-03-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Yiwei Jiang , Michael R. Blewett
IPC: F02C7/32 , F16H57/025
CPC classification number: F02C7/32 , F05D2260/30 , F05D2260/311 , F16H57/025
Abstract: A mounting link between a gas turbine engine and a gearbox comprises a gearbox arm, a fusibly breakable bolt, and two engine attachment brackets. The gearbox arm attaches to the gearbox, and extends along an axis defining a first dimension between the gas turbine engine structure and the gearbox. The fusibly breakable bolt extends through the gearbox arm, and has a central shear section that mates with the gearbox arm. The engine attachment brackets have primary and secondary retention annuli, and attachment flanges that attach to the gas turbine engine structure. The primary retention annuli are each concentric to an outer section of the fusibly breakable bolt, and have a radius selected to tightly retain those outer sections in the first dimension. The secondary retention annuli are each concentric to a portion of the shear section, and have a larger radius to loosely retain the shear section.
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公开(公告)号：US20170260907A1
公开(公告)日：2017-09-14
申请号：US15069399
申请日：2016-03-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Yiwei Jiang , Michael R. Blewett
IPC: F02C7/32 , F16H57/025
CPC classification number: F02C7/32 , F01D21/045 , F05D2230/60 , F05D2250/42 , F05D2260/30 , F05D2260/311 , F05D2260/36 , F05D2260/96 , F16H57/025
Abstract: A gearbox mounting link between a gas turbine engine structure and a gearbox mounting location comprises an engine attachment piece rotatably secured to the gas turbine engine structure. The engine attachment piece comprises first and second plates extending in parallel planes and separated by a gap having a gap width. A gearbox attachment piece is situated between the parallel plates, and is secured to the gearbox. A breakable primary retention fastener extends snugly through the parallel plates and the gearbox attachment piece, thereby rigidly retaining the gearbox with respect to the gas turbine engine in two degrees of freedom so long as the breakable primary retention fastener remains intact. A durable secondary retention fastener extending snugly through the parallel plates, and extends with clearance through the gearbox attachment piece via an oversized fastener passage, thereby constraining the gearbox attachment piece in the event that the breakable primary retention fastener breaks.
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公开(公告)号：US20140274420A1
公开(公告)日：2014-09-18
申请号：US13799415
申请日：2013-03-13
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Michael R. Blewett , Keith E. Short
IPC: F16H57/04
CPC classification number: F16H57/043 , F01D5/026 , F01D25/18 , F02C7/32 , F04C15/0088 , F05D2260/4031 , F05D2260/98 , F16H57/0421 , F16H57/0424 , F16H57/0426 , F16H57/0486 , F16N21/00
Abstract: A gearbox assembly for use in a gas turbine engine includes a gearbox housing and first and second shafts. The first shaft is rotatably mounted in the gearbox housing. The first shaft has a first set of splines and defines a central cavity. The second shaft has a second set of splines engaged with the first set of splines. A scupper is positioned on an inner surface of the gearbox housing proximate the first shaft so as to direct liquid from the scupper through the central cavity of the first shaft to the first and second sets of splines.
Abstract translation: 用于燃气涡轮发动机的齿轮箱组件包括齿轮箱壳体和第一和第二轴。 第一轴可旋转地安装在变速箱壳体中。 第一轴具有第一组花键并且限定中心腔。 第二轴具有与第一组花键接合的第二组花键。 散热器定位在靠近第一轴的齿轮箱壳体的内表面上，以便将来自沉降器的液体引导通过第一轴的中心空腔到第一和第二组花键。
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Patent Agency Ranking
公开(公告)号：US11971040B2
公开(公告)日：2024-04-30
申请号：US17509996
申请日：2021-10-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Michael R. Blewett
CPC classification number: F04D13/14 , F04D13/021 , F05D2220/32 , F05D2240/515 , F05D2240/55
Abstract: A fuel system is disclosed for a gas turbine engine, which includes an augmentor pump having an inlet communicating with a fuel supply source and a discharge communicating with an augmentation stage of the engine, wherein the augmentor pump is connected to an accessory drive gearbox mounted to the engine, and a high speed clutch for selectively engaging and disengaging the augmentor pump and the accessory drive gearbox.
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公开(公告)号：US20220348347A1
公开(公告)日：2022-11-03
申请号：US17377551
申请日：2021-07-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Aaron M. Finke , Michael R. Blewett
Abstract: A dual drive, dual clutch accessory drive system for an aircraft including a first input shaft connected to a first pressure spool of a turbine engine. The first input shaft rotates at a first speed. A second input shaft is connected to a second spool of the turbine engine that is distinct from the first spool. The second input shaft rotates at a second speed. An output shaft operatively connected to an aircraft accessory. A first drive path selectively operatively connects the first input shaft with the output shaft. The first drive path includes a first clutch. The first drive path being operable to rotate the output shaft at the first speed. A second drive path operatively connects the second input shaft with the output shaft. The second drive path includes a second clutch. The second drive path is operable to rotate the output shaft at the second speed.
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公开(公告)号：US20190154199A1
公开(公告)日：2019-05-23
申请号：US15820806
申请日：2017-11-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Allen Slayter , Michael R. Blewett
IPC: F16N27/00
Abstract: A flow restrictor assembly includes a threaded element and a sleeve. The threaded element defines a plurality of threads that extend from a first threaded element end towards a second threaded element end. The sleeve has an inner sleeve surface that engages edges of a portion of the plurality of threads and extends between a first sleeve end and a second sleeve end. A lubrication flow path is defined by the portion of the plurality of threads and the inner sleeve surface and is arranged to create a pressure drop in a lubricant that flows through the lubrication flow path.
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公开(公告)号：US10260615B2
公开(公告)日：2019-04-16
申请号：US14961086
申请日：2015-12-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Allen Slayter , Michael R. Blewett
IPC: F16H57/027 , F16H57/04 , F01D25/18 , F02C7/32 , F16N7/36
Abstract: A gearbox assembly includes an outer housing and a gear box shaft at least partially disposed in the outer housing. The gear box shaft includes an interior region and a reservoir dam that separates the interior region into a reservoir volume and a spline volume. The reservoir dam has a vent hole formed therein that passes through it such that a surface of the dam is in fluid communication with a region defined by the outer housing and outside of the gear box shaft.
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公开(公告)号：US10215100B2
公开(公告)日：2019-02-26
申请号：US15069431
申请日：2016-03-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Yiwei Jiang , Michael R. Blewett
IPC: F02C7/32 , F16H57/025
Abstract: A mounting link between a gas turbine engine and a gearbox comprises a gearbox arm, a fusibly breakable bolt, and two engine attachment brackets. The gearbox arm attaches to the gearbox, and extends along an axis defining a first dimension between the gas turbine engine structure and the gearbox. The fusibly breakable bolt extends through the gearbox arm, and has a central shear section that mates with the gearbox arm. The engine attachment brackets have primary and secondary retention annuli, and attachment flanges that attach to the gas turbine engine structure. The primary retention annuli are each concentric to an outer section of the fusibly breakable bolt, and have a radius selected to tightly retain those outer sections in the first dimension. The secondary retention annuli are each concentric to a portion of the shear section, and have a larger radius to loosely retain the shear section.
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