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公开(公告)号：US11255273B2
公开(公告)日：2022-02-22
申请号：US16536974
申请日：2019-08-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Aaron M. Finke , Stephen Michael Bortoli , Jonathan C. Dell
Abstract: A turbomachine 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 spool speed range alone. The gear assembly can include a ring gear, a sun gear, and a plurality of planetary gears disposed between the sun gear and the ring gear and meshed with the sun gear and the ring gear. The planetary gears can be rotationally connected to a carrier.
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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.
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公开(公告)号：US20210123379A1
公开(公告)日：2021-04-29
申请号：US16661697
申请日：2019-10-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Shin Katsumata , Debabrata Pal , Kris H. Campbell , Erika M. Danckers , Andreas C. Koenig , Brian C. Konopa , Jonathan C. Dell
Abstract: A generator cooling assembly is provided and includes a rotor, a generator assembly and an air-cycle machine (ACM). The generator assembly includes a generator housing, a generator housed in the generator housing and a shaft coupled to the rotor to transmit shaft power from the rotor to the generator to drive the generator. The ACM is housed in the generator housing and is receptive of air. The air is cooled by the ACM and output from the ACM to the generator as fully cooled air to cool the generator.
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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
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.
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公开(公告)号：US11226013B2
公开(公告)日：2022-01-18
申请号：US16866415
申请日：2020-05-04
Applicant: Hamilton Sundstrand Corporation
Inventor： Kris H. Campbell , Jonathan C. Dell , Shin Katsumata
Abstract: A method of disconnecting a generator from a source of mechanical rotation includes receiving a generator disconnect command and receiving a rotational position of a generator input member. The input member rotational angle is compared to the target disconnect angle range, and a determination made whether to disconnect the input member from a generator drive member based on the comparison.
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Patent Agency Ranking
公开(公告)号：US11118514B2
公开(公告)日：2021-09-14
申请号：US16536960
申请日：2019-08-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Aaron M. Finke , Stephen Michael Bortoli , Jonathan C. Dell
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.
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公开(公告)号：US20210040895A1
公开(公告)日：2021-02-11
申请号：US16536974
申请日：2019-08-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Aaron M. Finke , Stephen Michael Bortoli , Jonathan C. Dell
Abstract: A turbomachine 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 spool speed range alone. The gear assembly can include a ring gear, a sun gear, and a plurality of planetary gears disposed between the sun gear and the ring gear and meshed with the sun gear and the ring gear. The planetary gears can be rotationally connected to a carrier.
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公开(公告)号：US20210040893A1
公开(公告)日：2021-02-11
申请号：US16536938
申请日：2019-08-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Aaron M. Finke , Stephen Michael Bortoli , Jonathan C. Dell
Abstract: A turbomachine dual spool transmission system can include a direct drive assembly configured to selectively allow bypassing of a dual spool differential combination output to allow selective direct engagement of a low pressure spool to directly drive a rotational member or to be directly driven by the rotational member. 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.
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公开(公告)号：US10804778B2
公开(公告)日：2020-10-13
申请号：US16001325
申请日：2018-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Henry R. Vanderzyden , Jonathan C. Dell
Abstract: A method of assembling an integrated drive generator includes the steps of providing a bore in a center housing portion, pressing a bearing liner into the bore, with a portion of the bearing liner extending proud of a surface of the center plate, and machining the surface around and adjacent to the bearing liner to provide a machined surface parallel to the surface.
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公开(公告)号：US10541634B2
公开(公告)日：2020-01-21
申请号：US15462194
申请日：2017-03-17
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval Patel , Jonathan C. Dell , Andreas C. Koenig , Glenn C. Lemmers, Jr.
Abstract: A generator arrangement includes a stator with armature winding, a rotor with one or more permanent magnets supported for rotation relative to the stator, a variable speed drive, and a control module. The variable speed drive is connected to the rotor for rotating the rotor within a predetermined speed range. The control module is disposed in communication with the armature windings and is operatively connected to the variable speed drive to maintain constant output voltage as load changes by varying rotational speed of the rotor.
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