公开(公告)号：US952113A

公开(公告)日：1910-03-15

申请号：US1909511324

申请日：1909-08-05

Applicant: GEN ELECTRIC

Inventor： HAWKINS LAURENCE A

CPC classification number: H02K2201/12

公开(公告)号：US745327A

公开(公告)日：1903-12-01

申请号：US1902112317

申请日：1902-06-19

Applicant: GEN ELECTRIC

Inventor： CHURCHWARD ALEXANDER

CPC classification number: H02K2201/12

公开(公告)号：US526743A

公开(公告)日：1894-10-02

申请号：US526743D

CPC classification number: H02K2201/12

公开(公告)号：US514140A

公开(公告)日：1894-02-06

申请号：US514140D

CPC classification number: H02K2201/12

公开(公告)号：US20240250594A1

公开(公告)日：2024-07-25

申请号：US18491033

申请日：2023-10-20

Applicant: Rolls-Royce Deutschland Ltd & Co KG

Inventor： Ellis F H CHONG ,  Andreas REEH ,  Johannes Gabriel BAUER ,  Anton RUDENKO

IPC: H02K21/24 ,  B64C29/00 ,  B64D27/24 ,  H02K1/14 ,  H02K3/24

CPC classification number: H02K21/24 ,  B64C29/0033 ,  B64D27/24 ,  H02K1/145 ,  H02K3/24 ,  H02K2201/12 ,  H02K2213/03

Abstract: A transverse flux electrical machine for coupling to a rotating shaft of a propulsor of an aircraft is provided. The transverse flux electrical machine includes a rotor having a plurality of circumferentially distributed permanent magnets that form a number, NP, of rotor poles, wherein the rotor poles have a pole pitch angle, Pθ, equal to 2π divided by the number of rotor poles, NP. The transverse flux electrical machine further includes a stator having a plurality of current-carrying coils configured to interact with the rotor poles of the rotor to produce a torque. The transverse flux electrical machine further includes an air gap separating the rotor from the stator by an air gap distance, GAir, wherein a machine parameter, Υ, defined as: Υ=Pθ×GAir is less than 100 micro radian-meters.

公开(公告)号：US20240239499A1

公开(公告)日：2024-07-18

申请号：US18491076

申请日：2023-10-20

Applicant: Rolls-Royce Deutschland Ltd & Co KG

Inventor： Ellis F. H. CHONG ,  Andreas REEH ,  Johannes Gabriel BAUER ,  Anton RUDENKO

IPC: B64D27/24 ,  H02K1/274 ,  H02K7/00

CPC classification number: B64D27/24 ,  H02K1/274 ,  H02K7/006 ,  H02K2201/12

Abstract: An electrical machine for an aircraft electrical power system includes a stator having current-carrying coils and flux guiding stator iron defining one or more stator slots that house the current-carrying coils. The electrical machine further includes a rotor having a plurality of permanent magnets configured to interact with the stator to produce a torque. The electrical machine has an active parts mass, mact, which is a cumulated mass of components of the electrical machine that contribute to producing the torque. The electrical machine is configured to produce a peak rated torque, τpeak. The electrical machine has a slot current density, Jslot,peak, when producing the peak rated torque, τpeak. A value of a machine parameter, Λ, defined as: Λ=τpeak/(mact×Jslot,peak) is greater than or equal to 5 μNm3 kg−1A−1.

公开(公告)号：US12003157B2

公开(公告)日：2024-06-04

申请号：US17375132

申请日：2021-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaebeum Kim ,  Sangsub Jeong ,  Sanga Park

IPC: H02K33/16 ,  F04B53/14 ,  F04B53/16 ,  F25B31/02

CPC classification number: H02K33/16 ,  F04B53/14 ,  F04B53/16 ,  F25B31/023 ,  H02K2201/12

Abstract: A transverse flux reciprocating motor and a linear compressor including the same are described. The transverse flux reciprocating motor includes an outer stator including a stator core, a teeth portion extended from the stator core to an inside, and a teeth shoe extended from an inner end of the teeth portion in a circumferential direction; a coil disposed on the teeth portion; an inner stator disposed in the outer stator and configured to reciprocate in an axial direction due to an electromagnetic interaction with the coil; and a magnet disposed on the teeth shoe and facing the inner stator. The stator core includes a plurality of core plates stacked in the axial direction. The magnet includes first and second magnets that are spaced from each other in the axial direction.

公开(公告)号：US20240006934A1

公开(公告)日：2024-01-04

申请号：US17857012

申请日：2022-07-03

Applicant: Kamil Podhola

Inventor： Kamil Podhola

IPC: H02K1/16 ,  H02K11/01

CPC classification number: H02K1/16 ,  H02K2201/12 ,  H02K11/01

Abstract: The invention relates to a stationary-rotational wireless power transfer system comprising a stationary primary electromagnetic interface providing a transverse magnetic field and a secondary electromagnetic interface spinning around an axis wherein a current is induced in a secondary electrical conductor. The primary interface can include conductor loops. The secondary conductor can be wound around a secondary magnetic conductor or can be oriented perpendicularly to the transverse magnetic field. The secondary magnetic conductor can be in a magnetic interaction with a primary magnetic conductor. The secondary electromagnetic interface can be configured to be an electric motor. The interfaces can be coupled with respective electrocomponents. The system can provide data transmission, modularity, power transfer between tracks and vehicles or offshore vessels. The system can comprise a shielding, an insulation, a thermal management system. A transverse magnetic field motor, a magnetic field driving method and an electric piston engine are proposed.

公开(公告)号：US20230412015A1

公开(公告)日：2023-12-21

申请号：US18337721

申请日：2023-06-20

Applicant: Board of Regents, The University of Texas System

Inventor： Babak Fahimi ,  Pengyuan Chen

IPC: H02K1/24 ,  H02K11/20 ,  H02K1/14

CPC classification number: H02K1/246 ,  H02K11/20 ,  H02K1/14 ,  H02K2201/12

Abstract: Disclosed is a novel design for an electric machine, segmented-rotor switched reluctance machine (SRSRM). It yields high torque density within the constraints of the volumetric space and can be used in applications in which high torque is required. The volumetric torque density of the disclosed SRSRM is comparable to interior permanent magnet machines (IPMs).

公开(公告)号：US11824410B1

公开(公告)日：2023-11-21

申请号：US18201619

申请日：2023-05-24

Applicant: Rolls-Royce Deutschland Ltd & Co KG

Inventor： Ellis F H Chong ,  Andreas Reeh ,  Johannes Gabriel Bauer ,  Anton Rudenko

IPC: H02K21/24 ,  B64D27/24 ,  B64C29/00 ,  H02K3/24 ,  H02K1/14

CPC classification number: H02K21/24 ,  B64C29/0033 ,  B64D27/24 ,  H02K1/145 ,  H02K3/24 ,  H02K2201/12 ,  H02K2213/03

Abstract: An electrical propulsion unit (EPU) for a vertical take-off and landing (VTOL) aircraft is provided. The EPU includes a propeller or a fan and an electric motor. The electric motor includes a stator comprising coils configured to carry current and a rotor arranged to interact with the stator. The rotor is configured to generate a torque for driving rotation of the propeller or the fan. The coils of the stator have a cumulated conductor volume Vconductor The stator, the rotor, or the stator and the rotor include a flux guiding iron material configured to guide magnetic flux generated by the coils of the stator, wherein the flux guiding iron material has a cumulated iron volume Viron, and wherein the electric motor has a machine parameter Γ that is greater than or equal to 0.25, Γ being defined as: Γ=Vconductor/Viron.