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    Chiller motor with cooling flow path
    11.
    发明授权
    Chiller motor with cooling flow path 有权

    公开(公告)号：US11609030B2

    公开(公告)日：2023-03-21

    申请号：US16495776

    申请日：2018-03-23

    Applicant: Johnson Controls Technology Company

    Inventor： Matthew L. Heisey ,  Paul W. Snell

    IPC: F25B31/00 ,  F25B31/02 ,  H02K5/20 ,  F04D29/058

    Abstract: A cooling system for a motor to power a compressor in a vapor compression system is provided. The cooling system includes a housing with a cavity enclosing the motor and defining a central axis and fluid directing features extending into the cavity and oriented parallel to the central axis. The cooling system further includes a fluid circuit configured to circulate a cooling fluid between the housing and the motor. The fluid circuit includes a first cooling fluid path defined by directing features that cause a first portion of cooling fluid to travel around a first portion of the motor and a second cooling fluid path defined by fluid directing features that cause a second portion of cooling fluid to travel around a second portion of the motor. The second portion of the motor is located opposite the first portion.

    Self-centering auxiliary bearings in a magnetic bearing cartridge
    12.
    发明授权
    Self-centering auxiliary bearings in a magnetic bearing cartridge 有权

    公开(公告)号：US11480215B2

    公开(公告)日：2022-10-25

    申请号：US16612584

    申请日：2018-07-10

    Applicant: Johnson Controls Technology Company

    Inventor： Paul W. Snell

    IPC: F16C32/04 ,  F16C33/58 ,  F16C33/60 ,  F16C35/04

    Abstract: A self-centering bearing assembly is provided. The bearing assembly includes a magnetic bearing device configured to support a rotating shaft and a magnetic bearing support housing. The magnetic bearing housing has a disc-like shape and multiple tabs extending from an outer diameter portion in an axial direction. The bearing assembly further includes an auxiliary bearing device configured to support the rotating shaft during an auxiliary bearing condition, and an auxiliary bearing support housing. The auxiliary bearing support housing has a disc-like shape with a first diameter portion and a second diameter portion. The first diameter portion has a larger diameter than the second diameter portion. The tabs are configured to couple to the second diameter portion such that the auxiliary bearing support housing is concentric to the magnetic bearing support housing.

    TWO PIECE SPLIT SCROLL FOR CENTRIFUGAL COMPRESSOR
    13.
    发明申请
    TWO PIECE SPLIT SCROLL FOR CENTRIFUGAL COMPRESSOR 有权

    公开(公告)号：US20210164490A1

    公开(公告)日：2021-06-03

    申请号：US16649863

    申请日：2018-09-21

    Applicant: Johnson Controls Technology Company

    Inventor： Jordan Q. Steiner ,  Paul W. Snell

    IPC: F04D29/42 ,  F04D29/46 ,  F04D29/62 ,  F04D17/10

    Abstract: A centrifugal compressor assembly is provided. The centrifugal compressor assembly includes a scroll assembly having a suction plate defining an inlet fluid passage, a suction plate housing, a diffuser plate, and a collector. The suction plate is detachably coupled to the suction plate housing, the suction plate housing is detachably coupled to the collector, and the diffuser plate is detachably coupled to the collector. The centrifugal compressor assembly further includes an impeller rotatably mounted in the scroll assembly for compressing fluid introduced through the inlet fluid passage, and a variable geometry diffuser system.

    Steam turbine driven centrifugal heat pump
    14.
    发明授权
    Steam turbine driven centrifugal heat pump 有权

    公开(公告)号：US10704810B2

    公开(公告)日：2020-07-07

    申请号：US14650598

    申请日：2014-12-12

    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY

    Inventor： Paul W. Snell ,  Eric John Smyder ,  Dale M. Unger

    IPC: F25B11/00 ,  F25B49/02 ,  F25B31/02 ,  F25B1/04 ,  F25B31/00 ,  F25B1/053 ,  F25B27/00 ,  F25B41/00 ,  F25B1/10

    Abstract: A centrifugal heat pump system includes a steam system with a steam supply, a steam turbine and a steam condenser connected in a steam loop; and a refrigerant system including a first compressor and a second compressor, a refrigerant condenser, and an evaporator connected in a refrigerant loop. The steam turbine includes a rotary drive shaft disposed axially and extending from a first end and a second end of the steam turbine. A sump system collects and redistributes oil or other lubricating fluid. The first compressor is coupled by a first coupling device to the first end of the steam turbine drive shaft and the second compressor is coupled by a second coupling device to the second end of the steam turbine drive shaft. The first and second compressors are connected in parallel in the refrigerant loop and controlled to share a cooling load equally.

    COLLECTOR FOR A COMPRESSOR
    15.
    发明申请
    COLLECTOR FOR A COMPRESSOR 审中-公开

    公开(公告)号：US20200018325A1

    公开(公告)日：2020-01-16

    申请号：US16491496

    申请日：2018-03-08

    Applicant: Johnson Controls Technology Company

    Inventor： Paul W. Snell

    IPC: F04D29/42 ,  F04D29/44

    Abstract: Embodiments of the present disclosure are directed toward a compressor includes an impeller configured to compress a working fluid, a diffuser positioned downstream of the impeller with respect to a flow path of the working fluid, where the diffuser is configured to direct the working fluid through a radial passage, and where the diffuser comprises a vaned diffuser portion disposed within the radial passage, and a collector positioned downstream of the diffuser with respect to the flow path of the working fluid, where a chamber of the collector is axially offset from the radial passage of the diffuser.

    Compact variable geometry diffuser mechanism
    18.
    发明授权
    Compact variable geometry diffuser mechanism 有权

    公开(公告)号：US11421699B2

    公开(公告)日：2022-08-23

    申请号：US16650277

    申请日：2018-09-21

    Applicant: Johnson Controls Technology Company

    Inventor： Jordan Q. Steiner ,  Paul W. Snell

    IPC: F04D27/02 ,  F04D29/46

    Abstract: A diffuser system for a centrifugal compressor is provided. The diffuser system includes a nozzle base plate (206) that defines a diffuser gap (212), support blocks (216, 246), and a drive ring (220) rotatable relative to the support blocks. The drive ring includes cam tracks (224, 242) and bearing assemblies (226, 234) positioned proximate an outer circumference of the drive ring. The diffuser system further includes drive pins (214) extending through the support blocks and the nozzle base plate. The first end of each drive pin includes a cam follower (218) mounted into a cam track on the drive ring. The second end of each drive pin is coupled to a diffuser ring (208). Rotation of the drive ring causes axial movement of the drive pins by movement of the cam followers in the cam tracks. This results in movement of the diffuser ring to control fluid flow through the diffuser gap.

    Back to back bearing sealing systems
    19.
    发明授权
    Back to back bearing sealing systems 有权

    公开(公告)号：US11293554B2

    公开(公告)日：2022-04-05

    申请号：US16491469

    申请日：2018-03-08

    Applicant: Johnson Controls Technology Company

    Inventor： Paul W. Snell

    IPC: F16J15/46 ,  F16J15/447 ,  F16J15/16 ,  F16C33/80 ,  F16J15/00 ,  F16J15/3224

    Abstract: Embodiments of the present disclosure are directed toward a sealing system for a motor that includes a first sealing element configured to be circumferentially disposed around a rotor shaft of the motor. The sealing system also includes a second sealing element configured to be circumferentially disposed around the rotor shaft. A sealing tip of the first sealing element is configured to lift from a surface of the rotor shaft in response to a pressurized fluid directed between the first sealing element and the second sealing element. Additionally, the first sealing element and the second sealing element are configured to radially float around the rotor shaft.

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