公开(公告)号：US12259006B2

公开(公告)日：2025-03-25

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 ,  B64D35/00 ,  F16F15/14

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：US20250055352A1

公开(公告)日：2025-02-13

申请号：US18231788

申请日：2023-08-09

Applicant: Hamilton Sundstrand Corporation

Inventor： Glenn C. Lemmers, Jr.

IPC: H02K11/042 ,  H02K19/28 ,  H02K19/38

Abstract: An electrical machine assembly includes an armature assembly defining a rotational axis and a rectifier assembly including at least one diode and defining a central rectifier axis. The armature assembly is configured and adapted to be coupled with a rotor shaft for relative rotation therewith. The central rectifier axis is at a non-parallel angle relative to the rotational axis. A rectifier assembly includes a first diode and a second diode stacked with the first diode. The rectifier assembly includes an AC terminal positioned between the first diode and the second diode and a DC positive output pin electrically coupled to the first diode. A portion of the AC terminal extends outward from the rectifier assembly at a non-parallel angle relative to the central longitudinal axis of the rectifier assembly. A central longitudinal axis of the rectifier assembly can be parallel to the DC positive output pin.

公开(公告)号：US12188369B2

公开(公告)日：2025-01-07

申请号：US18166036

申请日：2023-02-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Glenn C. Lemmers, Jr. ,  Mark J. Franklin ,  David S. Behling

IPC: F01D5/02 ,  F02C6/20 ,  F02C7/32 ,  F02C7/36

Abstract: Aircraft engines include an engine housing, a core assembly arranged within the engine housing and comprising an engine shaft arranged axially within the engine housing extending in a forward-aftward direction, and a tail cone assembly attached to an aft end of the engine housing. The tail cone assembly includes a tail cone housing and an aircraft machine arranged within the tail cone housing the aircraft machine comprising a rotor shaft. An input shaft is configured between the engine shaft and the rotor shaft and a rotor coupling configured to sealing connect the rotor shaft and the input shaft, the rotor coupling configured to providing sealing engagement between the rotor shaft and the input shaft during at least one of relative axial displacement and relative radial displacement between the rotor shaft and the input shaft.

公开(公告)号：US12000343B1

公开(公告)日：2024-06-04

申请号：US18295587

申请日：2023-04-04

Applicant: Hamilton Sundstrand Corporation

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

IPC: F02C7/32 ,  B64D27/10 ,  B64D35/00 ,  F01D15/10 ,  F16D25/0638

CPC classification number: F02C7/32 ,  B64D27/10 ,  B64D35/00 ,  F01D15/10 ,  F16D25/0638 ,  F05D2220/76 ,  F05D2260/4023

Abstract: A clutch assembly includes a clutch pack, and a rotating control piston selectably engageable with the clutch pack via movement of the clutch piston along an axis of rotation of the control piston. The clutch piston includes a piston member engageable with the clutch pack, a cover plate installed into the piston member to define an enclosed volume, and an axially fixed chamber divider positioned in the enclosed volume to divide the enclosed volume into a control pressure chamber and a pressure balancing chamber. Both the control pressure chamber and the pressure balancing chamber are filled with hydraulic fluid, and the control piston is moved between a disengaged position and an engaged position via modulation of hydraulic pressure in the control pressure chamber.

公开(公告)号：US11959589B2

公开(公告)日：2024-04-16

申请号：US17717458

申请日：2022-04-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval S. Patel ,  Aaron M. Finke ,  Glenn C. Lemmers, Jr. ,  Andreas C. Koenig

IPC: F16N13/00 ,  F01M1/02 ,  F04B49/20

CPC classification number: F16N13/00 ,  F01M1/02 ,  F04B49/20

Abstract: An aircraft oil management system includes a generator, pump, and pump control system. The generator is mechanically coupled to a prime mover via a the rotor shaft and is configured to output three-phase power. The pump is mechanically decoupled from the rotor shaft and delivers oil to the generator. The pump control system drives the pump independent of a rotational speed of the rotor shaft.

公开(公告)号：US11703105B2

公开(公告)日：2023-07-18

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

CPC classification number: 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：US11697998B1

公开(公告)日：2023-07-11

申请号：US17716111

申请日：2022-04-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Glenn C. Lemmers, Jr. ,  Jonathan C. Dell ,  David S. Behling

IPC: F01D15/10 ,  F02C9/28 ,  F02C7/32

CPC classification number: F01D15/10 ,  F02C7/32 ,  F02C9/28 ,  F05D2220/50 ,  F05D2220/7642 ,  F05D2270/02 ,  F05D2270/304 ,  F05D2270/56

Abstract: An aircraft power system includes an auxiliary power unit (APU), a generator, and a constant speed drive (CSD). The APU drives an APU drive shaft at a first rotational speed during a first condition and a second rotational speed during a second condition. The generator is rotatably coupled to a generator shaft and produces an AC voltage having a target frequency in response to rotation of the generator shaft at a target rotational speed. The CSD unit receives the first rotational speed from the APU drive shaft and rotates the generator shaft at the target rotational speed based on the first rotational speed. The CSD further receives the second rotational speed from the APU drive shaft and rotates the generator shaft at the target rotational speed based on the second rotational speed.

公开(公告)号：US11349363B2

公开(公告)日：2022-05-31

申请号：US16806303

申请日：2020-03-02

Applicant: Hamilton Sundstrand Corporation

Inventor： Derek R. Hochstetler ,  Ted A. Martin ,  Duane C. Johnson ,  Glenn C. Lemmers, Jr.

IPC: H02K1/32 ,  F02C7/32 ,  H02K15/02 ,  H02K15/00 ,  H02K7/116 ,  F16H37/02 ,  H02K1/28 ,  H02K7/18 ,  H02K3/20 ,  H02K7/20

Abstract: A lamination for use in an integrated drive generator is formed from a plurality of plates having a body including a pair of opposed cylindrical surfaces. Non-cylindrical ditches are defined circumferentially intermediate the pair of cylindrical surfaces. A plurality of passages are formed in an outer periphery of the cylindrical surfaces including relatively large holes extending through a slot to the outer periphery. Grooves are formed intermediate the relatively large holes.

公开(公告)号：US11320022B1

公开(公告)日：2022-05-03

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：US11054012B2

公开(公告)日：2021-07-06

申请号：US15862115

申请日：2018-01-04

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Derek R. Hochstetler ,  Ted A. Martin ,  Duane C. Johnson ,  Glenn C. Lemmers, Jr.

IPC: F16H55/08 ,  F16H55/17 ,  F02C7/36 ,  F02C7/32

Abstract: A generator driven gear for use in an integrated drive generator has a gear body extending between a first end and a second end and having a disc extending radially outwardly. A boss extends from the disc toward the second end. There are outer gear teeth outwardly of an outer diameter of the disc. The outer gear teeth having a unique gear tooth profile with roll angles A, B, C, and D. An integrated drive generator and a method are also disclosed.