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    TURBOMACHINE DUAL SPOOL TRANSMISSION SYSTEMS
    21.
    发明申请
    TURBOMACHINE DUAL SPOOL TRANSMISSION SYSTEMS 有权

    公开(公告)号：US20210404389A1

    公开(公告)日：2021-12-30

    申请号：US17473530

    申请日：2021-09-13

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron M. Finke ,  Stephen Michael Bortoli ,  Jonathan C. Dell

    IPC: F02C7/32

    Abstract: A turbomachine dual spool transmission system can include a transmission assembly configured to connect to a combination output of a dual spool differential at a transmission input to be driven by the combination output to turn a transmission output. The transmission assembly can be configured to provide a first output gear ratio in a first state and a second output gear ratio in a second state. The system can include the dual spool differential. The dual spool differential can include a gear assembly configured to combine a low pressure spool input and a high pressure spool input into a combination output to provide an output speed range smaller than a low pressure speed range alone.

    Coupled planetary gearbox
    22.
    发明授权
    Coupled planetary gearbox 有权

    公开(公告)号：US11028905B2

    公开(公告)日：2021-06-08

    申请号：US16353413

    申请日：2019-03-14

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron M. Finke ,  Stephen Michael Bortoli ,  Mark J. Franklin

    IPC: F16H3/66 ,  F02C7/32

    Abstract: Disclosed is a transmission, including: an input shaft; an output shaft; a gear system connected between the input shaft and the output shaft, the gear system including: a first epicyclical gear set that includes a first ring gear coupled to the input shaft, a first sun gear, a first planetary gear set, and a first planetary carrier connected to the first planetary gear set; and a second epicyclical gear set that includes a second ring gear, a second sun gear, a second planetary gear set, and a second planetary carrier connected to the second planetary gear set, wherein: the input shaft is coupled to the first ring gear and the second planetary carrier; and the first planetary carrier is coupled to the second ring gear; and clutches that engage the first epicyclical gear set and the second epicyclical gear set, the clutches shifting the transmission to generate overlapping transmission speeds.

    Transmission shift control method for reduced torque transients
    24.
    发明授权
    Transmission shift control method for reduced torque transients 有权

    公开(公告)号：US10900374B1

    公开(公告)日：2021-01-26

    申请号：US16539778

    申请日：2019-08-13

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron M. Finke ,  Stephen Michael Bortoli ,  Jonathan C. Dell

    IPC: F01D15/10 ,  F02C7/32 ,  F16D21/00 ,  F16H3/02 ,  H02P9/06 ,  H02P101/25

    Abstract: A power extraction system is provided and includes a low-pressure spool of a gas turbine engine, the low-pressure spool being rotatable at an input rotational speed between a first minimum speed and a first maximum speed, downstream components rotatable at an output rotational speed between a second minimum speed and a second maximum speed and a transmission assembly by which rotations of the low-pressure spool at the input rotational speed are transmittable at the output rotational speed to the downstream components. The transmission assembly includes clutches and a controller configured to control openings and closings of the clutches according to an upshifting algorithm whereby a torque applied by the downstream components is used to reduce the output rotational speed to an output speed of a gear into which the transmission assembly is shifting.

    WET CLUTCH ASSEMBLIES
    25.
    发明申请
    WET CLUTCH ASSEMBLIES 审中-公开

    公开(公告)号：US20200332842A1

    公开(公告)日：2020-10-22

    申请号：US16388016

    申请日：2019-04-18

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Stephen Michael Bortoli ,  Aaron M. Finke ,  Mark J. Franklin

    IPC: F16D13/74 ,  F16D13/72 ,  F02C7/16 ,  F16D25/12 ,  F16D13/52

    Abstract: A wet clutch assembly can include a clutch pack having a plurality of friction members attached to a first clutch housing and a plurality of separator members attached to a second clutch housing. The friction members and the separator members can be configured to be selectively contacted to each other to engage the first housing member to the second housing member. The clutch pack can be in fluid communication with a lubrication source such that a lubrication flow can flow to the friction members and the separator members to remove heat and/or debris therefrom.

    CLUTCH SYSTEMS FOR TRANSMISSIONS
    26.
    发明申请
    CLUTCH SYSTEMS FOR TRANSMISSIONS 审中-公开

    公开(公告)号：US20200332841A1

    公开(公告)日：2020-10-22

    申请号：US16388123

    申请日：2019-04-18

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Stephen Michael Bortoli ,  Aaron M. Finke ,  Mark J. Franklin

    IPC: F16D13/58 ,  F16D13/52

    Abstract: A clutch basket of a clutch for a transmission can include a clutch housing shaped to house a clutch pack in the clutch housing, wherein the clutch housing has a housing outer diameter, a neck integral with and extending axially from the clutch housing, the neck having a neck outer diameter smaller than the housing outer diameter, at least a first gear integrally formed or mounted on the neck and extending radially outward from the neck, wherein the first gear includes a first gear outer diameter. In certain embodiments, the housing outer diameter can be different from the first gear outer diameter.

    TRANSMISSION SYSTEMS HAVING CLUTCH AT OUTPUT SIDE
    27.
    发明申请
    TRANSMISSION SYSTEMS HAVING CLUTCH AT OUTPUT SIDE 审中-公开

    公开(公告)号：US20200332720A1

    公开(公告)日：2020-10-22

    申请号：US16388548

    申请日：2019-04-18

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Stephen Michael Bortoli ,  Aaron M. Finke ,  Mark J. Franklin

    IPC: F02C7/32 ,  F16H3/08

    Abstract: An engine system can include an engine having an engine shaft and a transmission that can include an input shaft connected to the engine shaft to rotate with the engine shaft, one or more rotating gears configured to rotate relative to the input shaft, and a synchromesh configured to selectively engage each of the one or more rotating gears to the input shaft. Transmission can include a second shaft comprising a clutch configured to selectively engage the one or more rotating gears to the second shaft to cause the second shaft to rotate with the one or more rotating gears.

    COUPLED PLANETARY GEARBOX
    28.
    发明申请
    COUPLED PLANETARY GEARBOX 审中-公开

    公开(公告)号：US20200292032A1

    公开(公告)日：2020-09-17

    申请号：US16353413

    申请日：2019-03-14

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron M. Finke ,  Stephen Michael Bortoli ,  Mark J. Franklin

    IPC: F16H3/66 ,  F02C7/32

    Abstract: Disclosed is a transmission, including: an input shaft; an output shaft; a gear system connected between the input shaft and the output shaft, the gear system including: a first epicyclical gear set that includes a first ring gear coupled to the input shaft, a first sun gear, a first planetary gear set, and a first planetary carrier connected to the first planetary gear set; and a second epicyclical gear set that includes a second ring gear, a second sun gear, a second planetary gear set, and a second planetary carrier connected to the second planetary gear set, wherein: the input shaft is coupled to the first ring gear and the second planetary carrier; and the first planetary carrier is coupled to the second ring gear; and clutches that engage the first epicyclical gear set and the second epicyclical gear set, the clutches shifting the transmission to generate overlapping transmission speeds.

    DEAERATOR SHAFT WITH ATTACHMENT SURFACES
    29.
    发明申请
    DEAERATOR SHAFT WITH ATTACHMENT SURFACES 审中-公开

    公开(公告)号：US20190038999A1

    公开(公告)日：2019-02-07

    申请号：US16157175

    申请日：2018-10-11

    Applicant: HAMILTON SUNDSTRAND CORPORATION

    Inventor： Andrew P. Grosskopf ,  Aaron M. Finke ,  Christine Lynn Ooyen

    IPC: B01D19/00 ,  F02C7/36 ,  H02K7/18 ,  H02K7/116 ,  F02C7/32

    Abstract: A deaerator shaft may have a tubular intake segment that forms an intake end of the deaerator shaft, a tubular sleeve attachment segment that is adjacent to the intake segment, a tubular central segment that is adjacent to the sleeve attachment segment, the central segment having a third diameter that is greater than the second diameter, the central segment comprising a protruding ring that radially extends from the central segment and divides the central segment, the protruding ring having opposing flat surfaces, and a tubular discharge segment that forms a discharge end of the deaerator shaft. A gear may have a central ring positioned along an axis, opposing tabs that extend from a first axial side of the central ring, and a shouldered ring that extends from a second axial side of the central ring, the shouldered ring having a lip that extends radially inward toward the axis.

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