John C Morgante

US Patent:

7030528, Apr 18, 2006

Filed:

Feb 6, 2003

Appl. No.:

10/361100

Inventors:

John C. Morgante - Noblesville IN, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

H02K 17/44

US Classification:

310112, 310114

Abstract:

A dual concentric AC motor allows for two independently operating AC motors that produce the same torque at the same current input as two conventional, separate electric motors while occupying a smaller physical volume. The dual concentric AC motor utilizes a single, hollow cylindrical stator core comprising inner and outer stators and an inner rotor and an outer rotor that operate independently of one another. The inner stator, with windings that face toward the center of the motor, couples to the inner rotor, which rotates inside the single stator core, while the outer stator, with windings that face away from the center of the motor, couples to the outer rotor, which rotates around the single stator core. A back iron, centrally located in the single stator core, physically and magnetically separates the inner and outer stators. The two rotors are coupled to separate, independent output shafts.

US Patent:

8269386, Sep 18, 2012

Filed:

Jan 11, 2010

Appl. No.:

12/684999

Inventors:

Edward L. Kaiser - Orion MI, US
John C. Morgante - Sterling Heights MI, US
Kevin P. Coleman - Livonia MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

H02K 11/00

US Classification:

310 71

Abstract:

A stator assembly includes a stator stack and a plurality of lead conductors extending from the stator stack. A plurality of conductor terminals are each connected to a respective one of the plurality of lead conductors. A plurality of wires are each connected to a respective one of the plurality of conductor terminals and a plurality of phase lead connection terminals are each connected to at least one of the plurality of wires.

US Patent:

8541924, Sep 24, 2013

Filed:

Jan 26, 2011

Appl. No.:

13/013943

Inventors:

Ryan Van Tiem - Rochester Hills MI, US
Edward L. Kaiser - Orion MI, US
John C. Morgante - Sterling Heights MI, US
Paul F. Turnbull - Canton MI, US
Michael C. Muir - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

H02K 3/34

US Classification:

310215

Abstract:

An insulator assembly for a stator assembly of an electric machine includes an annular ring attached to a stator core, and a plurality of coil separators supported by the annular ring and extending from the annular ring axially along a longitudinal axis. One of the coil separators is disposed between each adjacent pair of the coils to prevent contact between adjacent coils having a different electrical phase. The coil separators are slideably inserted between the adjacent pairs of coils, with the annular ring positioning and supporting the coil separators.

US Patent:

20030132673, Jul 17, 2003

Filed:

Jan 17, 2002

Appl. No.:

10/047878

Inventors:

Shijian Zhou - Carmel IN, US
Andrew Hsu - Fishers IN, US
Yanhu Guo - Indianapolis IN, US
Linda Ludek Brouns - Mc Cordsville IN, US
John Morgante - Noblesville IN, US

International Classification:

H02K009/00
H02K009/20

US Classification:

310/054000

Abstract:

A method and apparatus for cooling an electric motor including an electric motor having a stator, a rotor magnetically coupled to the stator, and a hollow motor shaft coupled to the rotor, rotating the rotor and the motor shaft, and generating a centrifugal force to force a liquid coolant through the hollow motor shaft.

US Patent:

20040263112, Dec 30, 2004

Filed:

Jun 27, 2003

Appl. No.:

10/607953

Inventors:

John Morgante - Noblesville IN, US
Theodore Demers - Commerce Township MI, US
Daniel Richey - New Castle IN, US

International Classification:

H02P007/42

US Classification:

318/801000

Abstract:

In an electrical drive system, an electric differential comprises a first rotor for driving a first drive wheel, a second rotor for driving a second drive wheel, the first and second rotors capable of independent relative rotation, and a common stator for driving the first and second rotors. The common stator may comprise a single winding for driving both rotors or first and second windings for driving the first and second rotors respectively. A processor and a sensor system monitor parameters such as torque, speed, magnetic flux, etc. to detect the loss of traction by one or both drive wheels and adjust the operation of the motor until traction is regained.

US Patent:

20090026868, Jan 29, 2009

Filed:

May 30, 2008

Appl. No.:

12/130213

Inventors:

John C. Morgante - Sterling Heights MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detriot MI

International Classification:

H02K 1/27
H02K 3/12

US Classification:

31015638, 310198, 903906

Abstract:

A stator assembly comprises a stator defining S slots. First and second windings are arranged in each of the S slots. The two windings have a width in a radial direction and a thickness in a direction perpendicular to the radial direction. A ratio of the width to the thickness is between 3.0:1 and 4.5:1.

US Patent:

20120286613, Nov 15, 2012

Filed:

May 9, 2011

Appl. No.:

13/103158

Inventors:

SINISA JURKOVIC - STERLING HEIGHTS MI, US
XINYU ZHOU - TROY MI, US
QIANG NIU - NOVI MI, US
KHWAJA M. RAHMAN - TROY MI, US
JOHN C. MORGANTE - STERLING HEIGHTS MI, US
XU HAN - NOVI MI, US
EDWARD L. KAISER - ORION MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - DETROIT MI

International Classification:

H02K 21/12

US Classification:

31015632

Abstract:

A permanent magnet motor includes a permanent magnet rotor, a stator surrounding the rotor having a plurality of teeth radially inwardly oriented toward a longitudinal axis of the stator wherein each tooth has a tooth length and a tooth tip surface geometry. An asymmetric air gap is defined by variations in the tooth lengths and tooth tip surface geometries.

US Patent:

20130020896, Jan 24, 2013

Filed:

Jul 19, 2011

Appl. No.:

13/186183

Inventors:

Xinyu Zhou - Troy MI, US
Sinisa Jurkovic - Sterling Heights MI, US
Qiang Niu - Novi MI, US
Khwaja M. Rahman - Troy MI, US
Xu Han - Novi MI, US
John C. Morgante - Sterling Heights MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

H02K 21/12
H02K 1/27

US Classification:

31015601

Abstract:

A rotor for a permanent magnet electric machine includes an axis of rotation, an outer surface, and a cross-section orthogonal to the axis of rotation with a non-circular contour of the outer surface defined by a plurality of radii angularly distributed around the axis of rotation.