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公开(公告)号：US20170260989A1
公开(公告)日：2017-09-14
申请号：US15606694
申请日：2017-05-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Steven A. Heitz , Keith E. Short
CPC classification number: F04D29/06 , F01D5/026 , F01D25/18 , F01M2001/1035 , F04D29/185 , F04D29/186 , F04D29/2288 , F16C19/06 , F16C19/54 , F16C33/667 , F16C33/6677 , F16C2360/44 , F16N7/363
Abstract: A method for filtering a fluid that includes collecting contaminates in the fluid, passing the fluid from inside an internal cavity of a first shaft through a tight clearance at a spline connection between the first shaft and a second shaft such that the fluid is filtered of contaminates as a result of the tight clearance, and delivering the filtered fluid to a delivery location.
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公开(公告)号：US09488170B2
公开(公告)日：2016-11-08
申请号：US14298411
申请日：2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/084 , F04C2/18 , F04C15/0003 , F04C15/0042 , F04C2240/54
Abstract: One embodiment includes a gear pump with a driven gear, a gear shaft passing through the driven gear, and a pressure loaded journal bearing. Also included is a fluid film, between a surface of the pressure loaded journal bearing and a surface of the gear shaft, and a hybrid pad on the pressure loaded journal bearing. The hybrid pad has a minimum leading edge angular location on the pressure loaded journal bearing of 41.5° and a maximum trailing edge angular location on the pressure loaded journal bearing of 54.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有从动齿轮的齿轮泵，通过从动齿轮的齿轮轴和加压轴颈轴承。 还包括流体膜，在加压轴颈轴承的表面和齿轮轴的表面之间，以及在加压轴颈轴承上的混合垫。 混合垫片在加载的轴承轴承41.5°上具有最小的前缘角位置，并且在54.5°的加载轴承轴承上具有最大后缘角位置。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号：US20160032969A1
公开(公告)日：2016-02-04
申请号：US14531388
申请日：2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/02 , F04C2/086 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/605 , F16C17/02 , F16C17/26 , F16C32/0659 , F16C32/0685 , F16C2240/30 , F16C2240/40
Abstract: A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. The first hybrid pad location circumferentially adjacent to the first fluid film location has a minimum leading edge angular location of at least about 31.0° measured relative to a first bearing flat. A first porting path provides high pressure fluid communication from a location outside the first journal bearing to the first fluid film location at or adjacent to the first hybrid pad location.
Abstract translation: 轴颈轴承组件包括围绕齿轮轴的纵向端部设置并且与第一轴向齿轮面间隔第一距离的第一轴颈轴承。 第一流体膜位置和第一混合垫位置环形地位于第一轴颈轴承的内表面和齿轮轴的外表面之间。 与第一流体膜位置周向相邻的第一混合垫位置具有相对于第一轴承平面测量的至少约31.0°的最小前缘角位置。 第一移动路径提供从第一轴颈轴承外部的位置到第一混合垫位置处或邻近第一混合垫位置处的第一流体膜位置的高压流体连通。
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公开(公告)号：US09890813B2
公开(公告)日：2018-02-13
申请号：US14531373
申请日：2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/0863 , F01C21/108 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/56 , F16C32/0659
Abstract: A gear pump includes a drive gear mounted to a first gear shaft, a driven gear meshable with the drive gear, a plurality of journal bearings, and a first porting path. The first porting path is adapted to provide high pressure fluid communication from a discharge of the gear pump to a first hybrid pad location for a first journal bearing selected from the plurality of journal bearings, the first hybrid pad location circumferentially adjacent to a first fluid film location. Each location is disposed annularly between an inner surface of the first journal bearing, and an outer surface of the first gear shaft or second gear shaft corresponding to the first journal bearing.
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公开(公告)号：US09726221B2
公开(公告)日：2017-08-08
申请号：US14531388
申请日：2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/02 , F04C2/086 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/605 , F16C17/02 , F16C17/26 , F16C32/0659 , F16C32/0685 , F16C2240/30 , F16C2240/40
Abstract: A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. The first hybrid pad location circumferentially adjacent to the first fluid film location has a minimum leading edge angular location of at least about 31.0° measured relative to a first bearing flat. A first porting path provides high pressure fluid communication from a location outside the first journal bearing to the first fluid film location at or adjacent to the first hybrid pad location.
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Patent Agency Ranking
公开(公告)号：US20160273500A1
公开(公告)日：2016-09-22
申请号：US14664027
申请日：2015-03-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Steven A. Heitz
CPC classification number: F02M37/20 , B01D19/0073 , F02C7/232 , F02C7/236 , F02M37/14
Abstract: A fuel system includes an air residence chamber operative to receive fuel from a fuel tank and allow degassed air to separate from fuel to an upper portion, and a boost pump including a boost pump inlet and a boost pump outlet. The boost pump inlet is in fluid communication with a lower portion of the air residence chamber to pump fluid from the air residence chamber. The system also includes an accumulator in fluid communication with the boost pump outlet. The accumulator includes a reservoir having a reservoir inlet in fluid communication with the boost pump outlet and a reservoir outlet. The accumulator also includes a piston slidably disposed in the reservoir. The piston is operative to push fluid through the reservoir outlet when a pump pressure of the boost pump drops below a predetermined pressure value.
Abstract translation: 燃料系统包括空气停留室，其操作以从燃料箱接收燃料并允许脱气的空气从燃料分离到上部;以及增压泵，其包括增压泵入口和增压泵出口。 增压泵入口与空气停留室的下部流体连通以从空气驻留室泵送流体。 该系统还包括与增压泵出口流体连通的蓄能器。 蓄能器包括具有与升压泵出口和储存器出口流体连通的储存器入口的储存器。 蓄能器还包括可滑动地设置在储存器中的活塞。 当增压泵的泵压力下降到预定压力值以下时，活塞可操作地推动流体通过储存器出口。
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公开(公告)号：US20150354562A1
公开(公告)日：2015-12-10
申请号：US14298543
申请日：2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/165 , F04C2/18 , F04C15/0026 , F04C15/0042 , F04C15/0057 , F04C2240/54
Abstract: One embodiment includes a gear pump with a driven gear, a gear shaft passing through the driven gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 41.5° and a maximum trailing edge angular location on the stationary journal bearing of 54.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有从动齿轮的齿轮泵，穿过从动齿轮的齿轮轴和固定轴颈轴承。 还包括在静止轴颈轴承的表面和齿轮轴的表面之间的流体膜，以及固定轴颈轴承上的混合垫。 混合式垫片在静止轴颈轴承上的最小前缘角位置为41.5°，固定轴颈轴承的最大后缘角位置为54.5°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号：US20150354559A1
公开(公告)日：2015-12-10
申请号：US14298411
申请日：2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/084 , F04C2/18 , F04C15/0003 , F04C15/0042 , F04C2240/54
Abstract: One embodiment includes a gear pump with a driven gear, a gear shaft passing through the driven gear, and a pressure loaded journal bearing. Also included is a fluid film, between a surface of the pressure loaded journal bearing and a surface of the gear shaft, and a hybrid pad on the pressure loaded journal bearing. The hybrid pad has a minimum leading edge angular location on the pressure loaded journal bearing of 41.5° and a maximum trailing edge angular location on the pressure loaded journal bearing of 54.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有从动齿轮的齿轮泵，通过从动齿轮的齿轮轴和加压轴颈轴承。 还包括流体膜，在加压轴颈轴承的表面和齿轮轴的表面之间，以及在加压轴颈轴承上的混合垫。 混合垫片在加载的轴承轴承41.5°上具有最小的前缘角位置，并且在54.5°的加载轴承轴承上具有最大后缘角位置。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号：US09964081B2
公开(公告)日：2018-05-08
申请号：US14664027
申请日：2015-03-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Steven A. Heitz
CPC classification number: F02M37/20 , B01D19/0073 , F02C7/232 , F02C7/236 , F02M37/14
Abstract: A fuel system includes an air residence chamber operative to receive fuel from a fuel tank and allow degassed air to separate from fuel to an upper portion, and a boost pump including a boost pump inlet and a boost pump outlet. The boost pump inlet is in fluid communication with a lower portion of the air residence chamber to pump fluid from the air residence chamber. The system also includes an accumulator in fluid communication with the boost pump outlet. The accumulator includes a reservoir having a reservoir inlet in fluid communication with the boost pump outlet and a reservoir outlet. The accumulator also includes a piston slidably disposed in the reservoir. The piston is operative to push fluid through the reservoir outlet when a pump pressure of the boost pump drops below a predetermined pressure value.
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公开(公告)号：US09488173B2
公开(公告)日：2016-11-08
申请号：US14448552
申请日：2014-07-31
Applicant: Hamilton Sundstrand Corporation
Inventor： Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/14 , F01C21/02 , F04C2/12 , F04C15/0061 , F04C18/14 , F04C29/005 , F04C2240/54
Abstract: One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film location annularly between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad location on the stationary journal bearing adjacent the fluid film location. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 31.0° and a maximum trailing edge angular location on the stationary journal bearing of 43.0°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有驱动齿轮的齿轮泵，穿过驱动齿轮的齿轮轴和固定轴颈轴承。 还包括流体膜位置，环状地位于固定轴颈轴承的表面和齿轮轴的表面之间，并且在固定轴颈轴承上邻近流体膜位置的混合垫片位置。 混合焊盘在静止轴颈轴承上的最小前缘角位置为31.0°，固定轴颈轴承的最大后缘角位置为43.0°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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