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    Air bearing shaft
    31.
    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。

    TURBOMACHINERY SHAFT WITH VARIABLE LATTICE DENSITIES
    34.
    发明申请
    TURBOMACHINERY SHAFT WITH VARIABLE LATTICE DENSITIES 有权

    公开(公告)号：US20230085189A1

    公开(公告)日：2023-03-16

    申请号：US17472184

    申请日：2021-09-10

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Brent J. Merritt ,  Darryl A. Colson

    IPC: F04D29/053 ,  F04D17/10

    Abstract: A rotating shaft for a rotary machine includes a first shaft portion centered on a central axis and a variable lattice structure in an interior of the rotating shaft. The variable lattice structure includes a first region of the rotating shaft having a first lattice structure and a second region of the rotating shaft having a second lattice structure. The second lattice structure of the second region is denser than the first lattice structure of the first region. The second region is a deflection region or a stress region of the rotating shaft.

    TURBOMACHINERY ROTOR SHROUD WITH VARIABLE LATTICE DENSITIES
    35.
    发明申请
    TURBOMACHINERY ROTOR SHROUD WITH VARIABLE LATTICE DENSITIES 有权

    公开(公告)号：US20230081155A1

    公开(公告)日：2023-03-16

    申请号：US17472134

    申请日：2021-09-10

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Brent J. Merritt ,  Darryl A. Colson

    IPC: F01D25/24 ,  F01D11/08

    Abstract: A rotor shroud for a rotary machine in a cabin air compressor includes a disk portion centered on a central axis of the rotor shroud, a frustoconical portion extending from the disk portion, a flared portion extending from the frustoconical portion, and a variable lattice structure in an interior of the rotor shroud. The variable lattice structure includes a first region of the rotor shroud having a first lattice structure and a second region of the rotor shroud having a second lattice structure. The second lattice structure of the second region is denser than the first lattice structure of the first region. The second region is a deflection region, a stress region, or an energy containment region of the rotor shroud.

    CABIN AIR COMPRESSOR WITH LIQUID COOLED JACKET
    36.
    发明申请
    CABIN AIR COMPRESSOR WITH LIQUID COOLED JACKET 有权

    公开(公告)号：US20220194601A1

    公开(公告)日：2022-06-23

    申请号：US17132749

    申请日：2020-12-23

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Brent J. Merritt ,  Darryl A. Colson

    IPC: B64D13/08

    Abstract: Disclosed is a cabin air compressor (CAC) of an aircraft environmental control system, the CAC having: a CAC case defining a forward end, an aft end axially spaced apart from the forward end, wherein the forward end defines a compressor inlet; and a supplemental cooling jacket, positioned around at least a portion of the CAC case and at least partially conforming the CAC case, and wherein the supplemental cooling jacket is configured to direct a cooling medium through it.

    BEARING HOUSING FOR A TWO-WHEEL AIR CYCLE MACHINE
    37.
    发明申请
    BEARING HOUSING FOR A TWO-WHEEL AIR CYCLE MACHINE 有权

    公开(公告)号：US20210310498A1

    公开(公告)日：2021-10-07

    申请号：US17218564

    申请日：2021-03-31

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Darryl A. Colson ,  Eric Chrabascz

    IPC: F04D29/42 ,  B64D13/06 ,  F04D29/056 ,  F01D25/24

    Abstract: A bearing housing for a two-wheel air cycle machine includes a first housing portion, a second housing portion, a third housing portion, and a journal bearing bore. The first housing portion is centered around an axis and has a first side and a second side. The second side is positioned axially away from the first side. The second housing portion is centered around the axis and has a first side and a second side. The second side is positioned axially away from the first side. The first side of the second housing portion connects to the second side of the first housing portion. The third housing portion is centered around the axis and has a first side and a second side. The second side is positioned axially away from the first side. The first side of the third housing portion connects to the second side of the second housing portion. The journal bearing bore is centered axially with in the bearing housing and has a diameter of D1.

    Two-wheel air cycle machine
    38.
    发明授权
    Two-wheel air cycle machine 有权

    公开(公告)号：US11125243B2

    公开(公告)日：2021-09-21

    申请号：US16732754

    申请日：2020-01-02

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Darryl A. Colson ,  Brent J. Merritt

    IPC: F04D29/057 ,  F04D17/10 ,  F04D29/08

    Abstract: A two-wheel air cycle machine includes a tie rod defining an axis, a turbine mounted on the tie rod, and a compressor mounted on the tie rod and having a rotor portion and a disk portion with at least one aperture. The air cycle machine further includes a compressor inlet fluidly connecting the compressor and an inlet air source, at least one thrust bearing disposed between the turbine and the compressor, and a compressor end shaft coaxial with the tie rod and abutting the compressor disk portion. The compressor end shaft includes a radially-extending seal disk portion and an axially-extending shaft portion having at least one shaft aperture. The at least one disk aperture and the at least one shaft aperture are fluidly connected by a compressor disk cavity defined by a gap between the tie rod and the compressor disk portion. The at least one disk aperture, the compressor disk cavity, and the at least one shaft aperture at least partially define a compressor inlet flow path.

    AIR CYCLE MACHINES AND METHODS OF COMMUNICATING FLUID THROUGH AIR CYCLE MACHINES
    39.
    发明申请
    AIR CYCLE MACHINES AND METHODS OF COMMUNICATING FLUID THROUGH AIR CYCLE MACHINES 有权

    公开(公告)号：US20210278108A1

    公开(公告)日：2021-09-09

    申请号：US16810033

    申请日：2020-03-05

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Roberto J. Perez ,  Beakal T. Woldemariam ,  Darryl A. Colson

    IPC: F25B9/00 ,  B64D13/06 ,  F25B9/06

    Abstract: An air cycle machine includes a housing, a scavenging turbine, and an ambient air fan. The housing has an exterior wall defining an overboard air inlet, an ambient air inlet, and an ambient air outlet. The scavenging turbine is arranged within the housing, is supported for rotation about a rotation axis, and is in fluid communication with the overboard air inlet. The ambient air fan is arranged within the housing, is supported for rotation about the rotation axis within the housing, and has a radially inner spoked portion and radially outer bladed portion. The bladed portion of the ambient air fan fluidly couples the ambient air inlet to the ambient air outlet and the spoked portion of the ambient air fan fluidly couples the scavenging turbine to the ambient air fan within the housing. Environmental control systems and fluid communication methods are also described.

    TWO-WHEEL AIR CYCLE MACHINE
    40.
    发明申请
    TWO-WHEEL AIR CYCLE MACHINE 有权

    公开(公告)号：US20210207613A1

    公开(公告)日：2021-07-08

    申请号：US16732754

    申请日：2020-01-02

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Darryl A. Colson ,  Brent J. Merritt

    IPC: F04D29/057 ,  F04D17/10 ,  F04D29/08

    Abstract: A two-wheel air cycle machine includes a tie rod defining an axis, a turbine mounted on the tie rod, and a compressor mounted on the tie rod and having a rotor portion and a disk portion with at least one aperture. The air cycle machine further includes a compressor inlet fluidly connecting the compressor and an inlet air source, at least one thrust bearing disposed between the turbine and the compressor, and a compressor end shaft coaxial with the tie rod and abutting the compressor disk portion. The compressor end shaft includes a radially-extending seal disk portion and an axially-extending shaft portion having at least one shaft aperture. The at least one disk aperture and the at least one shaft aperture are fluidly connected by a compressor disk cavity defined by a gap between the tie rod and the compressor disk portion. The at least one disk aperture, the compressor disk cavity, and the at least one shaft aperture at least partially define a compressor inlet flow path.

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