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    Thrust bearing cooling path
    21.
    发明授权
    Thrust bearing cooling path 有权
    推力轴承冷却通道

    公开(公告)号：US08827639B2

    公开(公告)日：2014-09-09

    申请号：US13858232

    申请日：2013-04-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Craig M. Beers ,  Brent J. Merritt ,  Victoria S. Richardson

    IPC: F04D29/58 ,  F04D29/051 ,  B64D13/06

    CPC classification number: F04D29/051 ,  B64D13/06 ,  F04D29/0513 ,  F04D29/584

    Abstract: A compressor rotor compresses and delivers compressed air across a turbine rotor. The turbine rotor is connected to the compressor rotor such that rotation of the turbine rotor drives the compressor rotor. A shaft is connected to rotate with the turbine rotor and the compressor rotor. A thrust bearing is provided by a member extending perpendicular and radially outwardly of the shaft. The member rotates with the shaft and faces a first housing wall. A hollow chamber is formed on an opposed side of the first housing wall. A cooling air path supplies air across a thrust bearing surface, and between the member and the first housing wall. The first housing wall has a communication hole for communicating cooling air from the cooling air path into the hollow cavity to drive air within the hollow chamber. Also, a housing incorporating the communication hole is disclosed.

    Abstract translation: 压缩机转子在涡轮转子上压缩和输送压缩空气。 涡轮转子连接到压缩机转子，使得涡轮转子的旋转驱动压缩机转子。 连接轴与涡轮转子和压缩机转子一起旋转。 推力轴承由垂直于轴的径向向外延伸的构件提供。 构件与轴旋转并面向第一壳体壁。 中空室形成在第一壳体壁的相对侧上。 冷却空气路径通过推力轴承表面，并且在构件和第一壳体壁之间提供空气。 第一壳体壁具有用于将冷却空气从冷却空气通道传送到中空腔中的连通孔，以驱动中空室内的空气。 此外，公开了一种结合有连通孔的壳体。

    Air bearing shaft
    22.
    发明授权
    Air bearing shaft 有权
    空气轴承轴

    公开(公告)号：US08734017B1

    公开(公告)日：2014-05-27

    申请号：US13789917

    申请日：2013-03-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Darryl A. Colson ,  Craig M. Beers ,  John H. Paliulis

    IPC: F16C32/06 ,  F01D3/00 ,  F01D25/00

    CPC classification number: F16C37/002 ,  F01D25/186 ,  F01D25/22 ,  F16C17/02 ,  F16C32/0607 ,  F16C33/1005

    Abstract: An air bearing shaft for an air cycle machine is provided. The air bearing shaft includes a seal disk and a shaft body. The shaft body includes a first shaft body portion extending from a face of the seal disk to a knife-edge seal. The first shaft body portion includes journal bearing cooling holes positioned axially closer to the knife-edge seal than to the face of the seal disk. The journal bearing cooling holes extend through the first shaft body portion to a hollow interior and have a total cooling area. Start-up holes are positioned axially closer to the face of the seal disk than to the knife-edge seal. The start-up holes extend through the first shaft body portion to the hollow interior. The start-up holes have a total start-up area. A ratio of the total cooling area to the total start-up area is between 2.17 and 4.06.

    Abstract translation: 提供了一种用于空气循环机的空气轴承轴。 空气轴承轴包括密封盘和轴体。 轴体包括从密封盘的表面延伸到刀刃密封件的第一轴主体部分。 第一轴体部分包括轴向轴承冷却孔，其轴向更靠近刀刃密封件而不是密封盘的表面。 轴颈轴承冷却孔通过第一轴体部分延伸到中空的内部并具有总冷却面积。 启动孔位于轴向更靠近密封盘的表面，而不是刀刃密封。 起动孔延伸穿过第一轴主体部分到中空的内部。 启动孔具有总启动区域。 总冷却面积与总启动面积的比值在2.17和4.06之间。

    Turbine housing weld repair
    23.
    发明授权
    Turbine housing weld repair 有权

    公开(公告)号：US11920488B2

    公开(公告)日：2024-03-05

    申请号：US16450084

    申请日：2019-06-24

    Applicant: HAMILTON SUNDSTRAND CORPORATION

    Inventor： Craig M. Beers ,  Clarence J. Wytas

    IPC: F01D25/16 ,  B23P6/04 ,  B29C65/56 ,  F16L13/02 ,  F16L13/14 ,  F16L41/08

    CPC classification number: F01D25/16 ,  B23P6/04 ,  B29C65/565 ,  F05D2230/10 ,  F05D2230/80 ,  F05D2240/54 ,  F16L13/0209 ,  F16L13/147 ,  F16L41/082 ,  Y10T29/49737

    Abstract: A repaired turbine housing for use in an air cycle machine including a journal bearing bore having an inlet, an outlet, and an inner diameter of about 2.580±0.001 inches (6.553±0.003 centimeters). The repaired turbine housing including a cylindrical insert secured within the journal bearing bore. The cylindrical insert having a first end, a second end, an inner surface, a step located at the first end, and an outer surface with an outer diameter that provides a diametric interference with the inner diameter of the journal bearing bore. The diametric interference being between about 0.000-0.003 inches (0.000-0.008 centimeters). The cylindrical insert being inserted into the inlet of the journal bearing bore up to the step. The step has an outer diameter greater than the outer diameter of the cylindrical insert. The inner surface of the cylindrical insert includes at least one selected inner diameter.

    Variable vaneless diffuser with moving floor
    24.
    发明授权
    Variable vaneless diffuser with moving floor 有权

    公开(公告)号：US11873839B1

    公开(公告)日：2024-01-16

    申请号：US17942942

    申请日：2022-09-12

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Craig M. Beers ,  Brent J. Merritt

    IPC: F04D29/46

    CPC classification number: F04D29/464

    Abstract: A variable vaneless diffuser includes a shroud, a backing plate, a divider plate adjacent to the backing plate, a floor plate adjacent to the shroud, a plurality of standoffs formed on the divider plate, and a plurality of clearance slots formed in the floor plate. The divider plate is between the shroud and the backing plate. The floor plate is between the shroud and the divider plate and is movable relative to the divider plate. The plurality of standoffs and the plurality of clearance slots define a flow path for fluid flow. The flow path has an area which is variable through movement of the floor plate relative to the divider plate.

    MOTOR AND BEARING COOLING PATHS
    27.
    发明申请
    MOTOR AND BEARING COOLING PATHS 有权

    公开(公告)号：US20220154731A1

    公开(公告)日：2022-05-19

    申请号：US17591191

    申请日：2022-02-02

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Brent J. Merritt ,  Craig M. Beers ,  John M. Beck

    IPC: F04D29/58 ,  F04D25/08 ,  F04D29/42

    Abstract: A compressor includes a rotor driven by a shaft and configured to compress air and a motor for driving the shaft. At least one bearing facilitates rotation of the shaft. A motor cooling loop is configured to provide motor cooling air to the motor. A bearing cooling loop is configured to provide bearing cooling air to the at least one bearing. A bearing support is configured to support the least one bearing, the bearing support includes an opening. A duct is configured to communicate air from the opening to an inlet of the compressor. A method for cooling a compressor is also disclosed.

    AIR CYCLE MACHINE WITH COOLING AIR FLOW PATH
    28.
    发明申请
    AIR CYCLE MACHINE WITH COOLING AIR FLOW PATH 有权

    公开(公告)号：US20210172338A1

    公开(公告)日：2021-06-10

    申请号：US16707422

    申请日：2019-12-09

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Craig M. Beers ,  Darryl A. Colson

    IPC: F01D25/12 ,  B64D13/08

    Abstract: An air cycle machine is provided including a plurality of components operably coupled via a shaft, the shaft being rotatable about an axis. A cooling airflow path receives cooling air from a cooling air source, directs the cooling air to at least one air-cooled bearing associated with one of the plurality of components, and discharges the cooling air. A cooling conduit is arranged in fluid communication with the cooling airflow path, wherein cooling air provided to the cooling conduit from the cooling airflow path has a first temperature and cooling air returned to the cooling airflow path has a second temperature, the second temperature being less than the first temperature.

    First stage turbine nozzle with erosion coating surface finish
    29.
    发明授权
    First stage turbine nozzle with erosion coating surface finish 有权

    公开(公告)号：US10214804B2

    公开(公告)日：2019-02-26

    申请号：US14584499

    申请日：2014-12-29

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Craig M. Beers ,  Kevin M. Rankin

    IPC: C23C4/129 ,  B64D13/08 ,  B64D13/02 ,  B22D25/02 ,  F01D9/04 ,  C23C4/06 ,  F04D29/32 ,  B64D13/06 ,  F04D25/04

    Abstract: A first stage turbine nozzle includes a first stage hub portion extending axially along a central axis, a first stage disk portion attached to the first stage hub portion and centered on the central axis, and a plurality of first stage vanes positioned radially around and attached to the first stage disk portion. Each vane extends a vane height H away from the first stage disk portion and each vane has a first end positioned at a diameter D away from the central axis. The first stage turbine nozzle also includes a plurality of first stage throats defined between radially adjacent first stage vanes. Each first stage throat has a throat width W between radially adjacent first stage vanes. The first stage turbine nozzle also includes a coating on a sidewall of each first stage vane.

    Turbine nozzle and shroud for air cycle machine
    30.
    发明授权
    Turbine nozzle and shroud for air cycle machine 有权

    公开(公告)号：US10087760B2

    公开(公告)日：2018-10-02

    申请号：US13869051

    申请日：2013-04-24

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Craig M. Beers ,  Brent J. Merritt

    IPC: F01D9/04 ,  F01D5/00 ,  F01D5/14 ,  F01D5/28 ,  F02C1/02

    Abstract: A nozzle and shroud for use in an air cycle machine has a plate and a shroud curving in a first axial direction about a center axis of the shroud relative to the plate. A plurality of vanes extends in a second axial direction away from the plate. The plurality of vanes extends for a height away from the plate and a width defined as the closest distance between two adjacent vanes, with a ratio of the height to the width being between 0.1091 and 0.1401. An air cycle machine and a method of repair are also disclosed.

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