Michael C Muir

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:

20120288380, Nov 15, 2012

Filed:

May 10, 2011

Appl. No.:

13/104523

Inventors:

Edward L. Kaiser - Orion MI, US
Michael P. Fannin - Brighton MI, US
Anthony P. Tata - Fenton MI, US
Michael C. Muir - Troy MI, US
Ryan Van Tiem - Rochester Hills MI, US
Peter Bostwick - Rochester MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F04B 53/00

US Classification:

417321

Abstract:

A pump-motor assembly includes a motor housing, a motor disposed substantially within the motor housing, and a pumping element driven by the motor. A pressurized region is filled with a fluid pressurized by the pumping element, and a fluid passage is in fluid communication with the pressurized region and the motor housing. Fluid flows from the pressurized region to the motor housing and at least partially submerges the motor.

US Patent:

20220368184, Nov 17, 2022

Filed:

May 11, 2021

Appl. No.:

17/317088

Inventors:

- Detroit MI, US
Peng Zhang - Rochester MI, US
Michael C. Muir - Troy MI, US
Yew Sum Leong - Northville MI, US

International Classification:

H02K 1/28
H02K 1/27
H02K 15/02

Abstract:

An electric machine may include a rotor having a notch at each pole wherein each notch is skewed by some mechanical angle. Notches may fluidly couple one end of the rotor to the other end of the rotor and provide pumping functionality for fluid therein.

US Patent:

20190252935, Aug 15, 2019

Filed:

Feb 13, 2018

Appl. No.:

15/895400

Inventors:

- Detroit MI, US
Michael C. Muir - Troy MI, US
Yew Sum Leong - Northville MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

H02K 1/27
H02K 7/14
H02K 3/34

Abstract:

A rotor for an electric machine comprises a rotor core that defines a rotor slot having a central portion and an end portion. The end portion has a maximum width that is greater than a maximum width of the central portion immediately adjacent the end portion. A perimeter of the rotor slot at the end portion includes a plurality of segments extending between a first extremity at the maximum width of the end portion and a second extremity at the maximum width of the end portion. The plurality of segments include segments with different radii that decrease in magnitude from the center axis to the first extremity, and from the center axis to the second extremity.