公开(公告)号：US20240266911A1

公开(公告)日：2024-08-08

申请号：US18105416

申请日：2023-02-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Andrew P. Grosskopf ,  Glenn C. Lemmers, JR. ,  Andreas C. Koenig

IPC: H02K7/102 ,  H02K7/18 ,  H02K11/21 ,  H02K11/33

CPC classification number: H02K7/102 ,  H02K7/1823 ,  H02K11/21 ,  H02K11/33

Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a wedge with a first position radially withdrawn from the brake shaft, and a second position radially pressed against the brake shaft for applying braking forces to the brake shaft and to the generator shaft.

公开(公告)号：US20220163091A1

公开(公告)日：2022-05-26

申请号：US16953723

申请日：2020-11-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, JR. ,  David S. Behling

IPC: F16F15/129

Abstract: A torsion shaft assembly includes a torque carrying shaft including a driven end configured for receiving torque input to the torque carrying shaft and a driving end configured for outputting torque output from the toque carrying shaft. The torque carrying shaft includes an axial facing damping interface surface axially between the driven end and the driving end. A friction tube is disposed outboard of the torque carrying shaft. The friction tube is connected at a first axial location to be driven by the torque carrying shaft. The friction tube includes an axial facing damping interface surface that abuts the axial facing damping interface surface of the torque carrying shaft, forming a damping interface to provide frictional dampening against angular vibrations occurring as differential angular displacement between the driven end and the driving end of the torque carrying shaft.

公开(公告)号：US12160156B2

公开(公告)日：2024-12-03

申请号：US18105416

申请日：2023-02-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Andrew P. Grosskopf ,  Glenn C. Lemmers, Jr. ,  Andreas C. Koenig

IPC: H02K7/102 ,  H02K7/18 ,  H02K11/21 ,  H02K11/33

Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a wedge with a first position radially withdrawn from the brake shaft, and a second position radially pressed against the brake shaft for applying braking forces to the brake shaft and to the generator shaft.

公开(公告)号：US11920638B2

公开(公告)日：2024-03-05

申请号：US17327065

申请日：2021-05-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, Jr.

IPC: F16D1/116 ,  F16B21/18

CPC classification number: F16D1/116 ,  F16B21/183 ,  Y10T403/7033

Abstract: A generator shaft assembly including a primary shaft, a disconnect shaft housed within the primary shaft, where a first end of the disconnect shaft is configured to couple with the primary mover and a second end of the disconnect shaft is configured to mate with the generator. A retainer ring housed within the primary shaft having at least a landing and a groove on an inner surface thereof and a retainer member positioned between the landing of the retainer ring and an outer surface of the disconnect shaft configured to limit axial motion of the disconnect shaft relative to the primary shaft.

公开(公告)号：US20230358270A1

公开(公告)日：2023-11-09

申请号：US17736151

申请日：2022-05-04

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  David S. Behling ,  Glenn C. Lemmers, JR.

IPC: F16C3/02 ,  F16F15/14 ,  B64D35/00

CPC classification number: F16C3/023 ,  F16F15/145 ,  B64D35/00 ,  F16F2222/08 ,  F16C2326/43 ,  F16F2232/02 ,  F16F2236/08

Abstract: A shaft system includes an outer shaft including an inner surface defining a conduit and an inner shaft extending within the conduit. The inner shaft includes a radially extending passage having a first end and a second end. A centrifugal force activated damper extends between the outer shaft and the inner shaft. The centrifugal force activated damper includes a first member arranged between the inner shaft and the inner surface at the first end of the radially extending passage, a second member arranged between the inner shaft and the inner surface at the second end of the radially extending passage, and a connecting member extending through the radially extending passage. Rotation of the shaft system causes the first member and the connecting member to shift away from the second member into the inner surface of the outer shaft.

公开(公告)号：US12149151B2

公开(公告)日：2024-11-19

申请号：US18105457

申请日：2023-02-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, Jr. ,  Andreas C. Koenig

IPC: H02K7/102 ,  H02K7/18 ,  H02K11/21 ,  H02K11/26

Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a press fit sleeve engaged about the brake shaft and an actuator. The actuator is operatively connected to actuate a pawl between a first position spaced apart from the press fit sleeve for normal operation of the PMG, and a second position engaged with the press fit sleeve to apply braking forces to the press fit sleeve and to the generator shaft.

公开(公告)号：US20240266913A1

公开(公告)日：2024-08-08

申请号：US18105499

申请日：2023-02-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, JR. ,  Andreas C. Koenig

IPC: H02K7/102 ,  F02C7/36 ,  H02K7/18

CPC classification number: H02K7/102 ,  F02C7/36 ,  H02K7/1823 ,  F05D2240/60

Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. The brake system includes a band with a first position radially withdrawn from the brake shaft, and a second position radially pressed against the brake shaft for applying braking forces to the brake shaft and to the generator shaft. The brake system includes an actuator operatively connected to the band to actuate the band from the first position to the second position.

公开(公告)号：US20220163092A1

公开(公告)日：2022-05-26

申请号：US17527663

申请日：2021-11-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, JR. ,  David S. Behling

IPC: F16F15/129

Abstract: A torsion shaft assembly includes a torque carrying shaft including a driven end configured for receiving torque input to the torque carrying shaft and a driving end configured for outputting torque output from the toque carrying shaft. The torque carrying shaft includes an axial facing damping interface surface axially between the driven end and the driving end. A friction tube is disposed outboard of the torque carrying shaft. The friction tube is connected at a first axial location to be driven by the torque carrying shaft. The friction tube includes an axial facing damping interface surface that abuts the axial facing damping interface surface of the torque carrying shaft, forming a damping interface to provide frictional dampening against angular vibrations occurring as differential angular displacement between the driven end and the driving end of the torque carrying shaft.

公开(公告)号：US20250027540A1

公开(公告)日：2025-01-23

申请号：US18353467

申请日：2023-07-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Ethan Roberts ,  Aaron Cooling

IPC: F16D7/04

Abstract: A system includes a rotor shaft rotatable about an axis, a disconnect shaft nested at least partially within an interior of the rotor shaft, and a journal shaft selectively rotatably coupled to the disconnect shaft. A vibration damping mechanism is arranged between the rotor shaft and the journal shaft. The vibration damping mechanism includes a thrust journal bearing affixed to the rotor shaft and a thrust washer mounted to the journal shaft. A biasing mechanism is operably coupled to disconnect shaft to bias the thrust washer into frictional engagement with the thrust journal bearing.

公开(公告)号：US12146534B2

公开(公告)日：2024-11-19

申请号：US17403283

申请日：2021-08-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron Cooling ,  Glenn C. Lemmers, Jr. ,  Joshua A. Lehs

IPC: F16D3/14

Abstract: A vibration damping assembly for use with a second shaft nested within an interior of a first shaft is provided including a collar rotatable with the first shaft, and a cage rotatable with the second shaft and having at least one window formed therein. The collar and the cage are mounted concentrically. At least one damping mechanism is positioned within the at least one window. The at least one damping mechanism includes at least one flyweight and at least one support wedge. The at least one flyweight movable relative to the cage to frictionally engage an adjacent surface of the collar.