David A L Fleming

US Patent:

20200204052, Jun 25, 2020

Filed:

Mar 3, 2020

Appl. No.:

16/808088

Inventors:

- Chatsworth CA, US
Siavash Sadeghi - Northridge CA, US
David James Fleming - Cardiff CA, US
Michael Bruce Moir - Newbury CA, US

Assignee:

RESMED MOTOR TECHNOLOGIES INC. - Chatsworth CA

International Classification:

H02K 19/10
A61M 16/16
A61M 16/08
A61M 16/06
A61M 16/00
H02P 25/098
A61M 16/10
H02K 11/22
H02K 5/04
H02K 3/28
H02K 1/24

Abstract:

A stator assembly has coils in a distributed winding configuration. A poly-phase switched reluctance motor assembly may include a stator assembly with multiple coils in a distributed winding configuration. The stator assembly may have a central bore into which a rotor assembly having multiple poles is received and configured to rotate. A method of controlling a switched reluctance motor may include at least three phases wherein during each conduction period a first phase is energized with negative direction current, a second phase is energized with positive current and there is at least one non-energized phase. During each commutation period either the first phase or second phase switches off to a non-energized state and one of the non-energized phases switches on to an energized state with the same direction current as the first or second phase that was switched off. The switched reluctance motor may include a distributed winding configuration.

US Patent:

20200195109, Jun 18, 2020

Filed:

Feb 19, 2020

Appl. No.:

16/795085

Inventors:

- Chatsworth CA, US
Siavash Sadeghi - Northridge CA, US
David James Fleming - Cardiff CA, US
Michael Bruce Moir - Newbury Park CA, US

Assignee:

RESMED MOTOR TECHNOLOGIES INC. - Chatsworth CA

International Classification:

H02K 19/10
H02K 1/24
H02K 3/28
H02K 5/04
H02K 11/22
A61M 16/10
H02P 25/098
A61M 16/00
A61M 16/06
A61M 16/08
A61M 16/16

Abstract:

A stator assembly has coils in a distributed winding configuration. A poly-phase switched reluctance motor assembly may include a stator assembly with multiple coils in a distributed winding configuration. The stator assembly may have a central bore into which a rotor assembly having multiple poles is received and configured to rotate. A method of controlling a switched reluctance motor may include at least three phases wherein during each conduction period a first phase is energized with negative direction current, a second phase is energized with positive current and there is at least one non-energized phase. During each commutation period either the first phase or second phase switches off to a non-energized state and one of the non-energized phases switches on to an energized state with the same direction current as the first or second phase that was switched off. The switched reluctance motor may include a distributed winding configuration.

US Patent:

20160336841, Nov 17, 2016

Filed:

Jan 16, 2015

Appl. No.:

15/110780

Inventors:

- Chatsworth CA, US
Siavash Sadeghi - Northridge CA, US
David James Fleming - Cardiff CA, US
Michael Bruce Moir - Newbury Park CA, US

Assignee:

ResMed Motor Technologies Inc. - Chatsworth CA

International Classification:

H02K 19/10
H02K 1/24
H02K 3/28
H02K 5/04
A61M 16/06
A61M 16/10
A61M 16/16
A61M 16/00
A61M 16/08
H02P 25/098
H02K 11/22

Abstract:

A stator assembly has coils in a distributed winding configuration. A poly-phase switched reluctance motor assembly may include a stator assembly with multiple coils in a distributed winding configuration. The stator assembly may have a central bore into which a rotor assembly having multiple poles is received and configured to rotate. A method of controlling a switched reluctance motor may include at least three phases wherein during each conduction period a first phase is energized with negative direction current, a second phase is energized with positive current and there is at least one non-energized phase. During each commutation period either the first phase or second phase switches off to a non-energized state and one of the non-energized phases switches on to an energized state with the same direction current as the first or second phase that was switched off. The switched reluctance motor may include a distributed winding configuration.