公开(公告)号：US10811936B2

公开(公告)日：2020-10-20

申请号：US16242212

申请日：2019-01-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron M. Finke ,  Andreas C. Koenig ,  Stephen Michael Bortoli

IPC: H02K7/18 ,  F02C7/32 ,  H02P101/30

Abstract: A system can include a first generator configured to operate in a first speed range to produce a predetermined output characteristic, a second generator configured to operate at a second speed range different from the first speed range to produce the predetermined output characteristic, and a controller configured to activate the first generator at and/or above a first low activation speed and at and/or below a first high activation speed within the first speed range. The controller can be configured to activate the second generator at and/or above a second low activation speed within the second speed range. The controller can be configured to deactivate the first generator at and/or above a first high deactivation speed. The controller can be configured to deactivate the second generator at and/or below a second low deactivation speed.

公开(公告)号：US20200313491A1

公开(公告)日：2020-10-01

申请号：US16363603

申请日：2019-03-25

Applicant: Hamilton Sundstrand Corporation

Inventor： Joseph Kenneth Coldwate ,  Dhaval Patel ,  Andreas C. Koenig

IPC: H02K3/46 ,  H02K21/14 ,  H02K1/22 ,  H02K1/27

Abstract: A generator includes a stator with a stator winding, a rotor core with a rotor tooth supported for rotation relative to the stator about a rotation axis, and a field winding. The field winding includes a field coil that is seated on the rotor tooth. The field coil includes two or more flat wire turns stacked with one another and formed such edges of the field coil tightly engage circumferential faces of the tooth. Electrical systems and methods of making generators are also described.

公开(公告)号：US10594175B2

公开(公告)日：2020-03-17

申请号：US15445411

申请日：2017-02-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Andreas C. Koenig ,  Andrew R. Wilkinson

IPC: H02K1/18 ,  H02K1/16 ,  H02K15/02

Abstract: A lamination for an electrical machine lamination stack includes a body defining a plurality of winding slots on an inner diameter thereof and at least one inner diameter cleat aperture defined by the body configured to receive a cleat in an unlocked position and to interfere with the cleat when the cleat is transitioned to a locked position within the inner diameter cleat aperture such that a plurality of laminations can be stacked and locked together by the cleat.

公开(公告)号：US20190334398A1

公开(公告)日：2019-10-31

申请号：US16505215

申请日：2019-07-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Andreas C. Koenig ,  Andrew Wilkinson

IPC: H02K3/20 ,  H02K3/52 ,  H02K1/28 ,  H02K1/14 ,  H02K1/16 ,  H02K1/24 ,  H02K3/12

Abstract: A rotor for an electrical machine includes a rotor core having a plurality of circumferentially spaced apart rotor poles. A plurality of windings are seated in gaps between circumferentially adjacent pairs of the rotor poles. A respective wedge secures the windings in each gap configured to supply Q-axis damping. A pair of end plates are connected electrically to the wedges at opposing longitudinal ends thereof thereby completing a Q-axis winding circuit for each wedge.

公开(公告)号：US20180254735A1

公开(公告)日：2018-09-06

申请号：US15449743

申请日：2017-03-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Andreas C. Koenig ,  Joseph K. Coldwate

IPC: H02P29/40 ,  H02P27/06

CPC classification number: H02P29/40 ,  H02P6/00 ,  H02P27/06

Abstract: An electric machine includes a phase lead and a winding set with first and second windings. The first and second windings are connected to the phase lead and are connected electrically in parallel with one another. A current sensor is coupled to the first winding and is arranged to measure a portion of current flowing through the phase lead which flows through the first winding.

公开(公告)号：US10044238B2

公开(公告)日：2018-08-07

申请号：US15097813

申请日：2016-04-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Andreas C. Koenig

IPC: H02K1/27 ,  H02K15/03 ,  H02K1/02

Abstract: A permanent magnet machine includes a rotor including a rotor hub and a plurality of permanent magnets embedded in the rotor in a circumferential pattern. The rotor includes a respective bridge between each circumferentially adjacent pair of the permanent magnets. Each bridge is of a different material than that of the rotor hub, and the rotor hub and bridges are integral with one another.

公开(公告)号：US20170335772A1

公开(公告)日：2017-11-23

申请号：US15158731

申请日：2016-05-19

Applicant: Hamilton Sundstrand Corporation

Inventor： Joseph Kenneth Coldwate ,  Andreas C. Koenig

IPC: F02C7/262 ,  F02C3/04 ,  F02C9/00

Abstract: A method of cooling a shaft of a gas turbine engine includes moving a control valve towards a position that inhibits fluid flow from a high pressure air source to an air turbine starter and enables fluid flow from a blower motor to the air turbine starter, in response to a gas turbine engine shutdown. The method further includes operating the blower motor to provide air to the air turbine starter.

公开(公告)号：US09729018B2

公开(公告)日：2017-08-08

申请号：US14549873

申请日：2014-11-21

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Andreas C. Koenig ,  Joseph K. Coldwate

IPC: H02K9/02 ,  H02K1/20

CPC classification number: H02K1/20 ,  H02K9/02

Abstract: An electric machine is provided. The electric machine may comprise an inlet and a stator fluidly coupled to the inlet. The stator may comprise a first cooling channel formed in the stator with a first cross-sectional area. A second cooling channel may be formed in the stator and have a second cross-sectional area. The first cross-sectional area may be less than the second cross-sectional area. The electric machine may also include an outlet fluidly coupled to the stator. A stator assembly is also provided. The stator assembly may include a first channel with a first cross-sectional area and a second channel with a second cross-sectional area. The second cross-sectional area may be less than the first cross-sectional area.

公开(公告)号：US20170179800A1

公开(公告)日：2017-06-22

申请号：US14972310

申请日：2015-12-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Joseph Kenneth Coldwate ,  Andreas C. Koenig

IPC: H02K16/02 ,  H02K17/16 ,  H02K1/26 ,  H02K1/27 ,  H02K3/28 ,  H02K1/24 ,  H02K17/02

Abstract: A multi-rotor electric machine includes a first rotor, a stator, and a second rotor. The stator is disposed concentric with the first rotor and is disposed radially outward from the first rotor. The stator has a first plurality estate or windings disposed proximate first stator teeth of the stator. The stator has a second plurality of stator windings disposed proximate second stator teeth of the stator. The second rotor is disposed concentric with and is disposed radially outward from the stator. The second rotor is rotatable relative to the first rotor.

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.