Roy A Wookey

US Patent:

7834492, Nov 16, 2010

Filed:

Jul 31, 2006

Appl. No.:

11/495766

Inventors:

Trevor N. Iund - Peoria IL, US
Roy Wookey - Canton IL, US
Jonathan Matthew Baumann - Peoria IL, US
Matthew Dames - Brimfield IL, US

Assignee:

Caterpillar Inc - Peoria IL

International Classification:

H02K 9/00
H02K 9/06

US Classification:

310 52, 310 58, 310 59, 310 61, 310 64

Abstract:

An electric machine for a power system is disclosed. The electric machine has a housing with a first end cap and a second end cap. The first end cap has a first fluid passageway, and the second end cap has a second fluid passageway. The electric machine also has a stator fixedly disposed within the housing, and a rotor rotationally disposed radially inward from the stator. The rotor has an axial passageway fluidly communicating the first fluid passageway with the second fluid passageway.

US Patent:

20070117669, May 24, 2007

Filed:

Nov 23, 2005

Appl. No.:

11/285160

Inventors:

Stephen Garnett - Princeville IL, US
Michael Cronin - Peoria IL, US
Trevor Iund - Peoria IL, US
Roy Wookey - Canton IL, US

International Classification:

B62D 11/06

US Classification:

475018000

Abstract:

An electric drive system is provided having first and second output members and a driving shaft having an axis or rotation. A plurality of electric motors are arranged adjacent to the driving shaft. Each motor has an output shaft in driving engagement with and substantially parallel to the driving shaft. A differential steering system is operably disposed between the driving shaft and the first and second output members. The differential steering system includes a first planetary gear assembly operably engaged both between the driving shaft and the first output member and between the driving shaft and the second output member. The first planetary gear assembly has an axis of rotation that substantially aligns with the axis of rotation of the driving shaft. A steering motor is operatively engaged with the differential steering system and operable to simultaneously adjust the relative rotational speed of the first and second output members.

US Patent:

20070120427, May 31, 2007

Filed:

Nov 30, 2005

Appl. No.:

11/289305

Inventors:

Trevor Iund - Peoria IL, US
Roy Wookey - Canton IL, US

International Classification:

H02K 9/00
H02K 9/20

US Classification:

310054000, 310052000, 310112000, 310061000

Abstract:

An electric machine for a work machine is disclosed. The electric machine has a housing with at least one fluid passageway, a stator fixedly disposed within the housing, and a rotor rotatingly disposed radially inward from the stator. The rotor has a first axial bore, a first radial passageway, a second axial bore, and a second radial passageway. The first axial bore is in fluid communication with the at least one fluid passageway of the housing. The first radial passageway is in fluid communication with the first axial bore and configured to communicate fluid from the first axial bore with the stator. The second axial bore is in fluid communication with the at least one fluid passageway of the housing. The second radial passageway is in fluid communication with the second axial bore and configured to communicate fluid from the second axial bore with the stator.