Ray F Hamilton

US Patent:

6983673, Jan 10, 2006

Filed:

Feb 28, 2003

Appl. No.:

10/377021

Inventors:

Peter J. Bellich - Utica MI, US
Bryan D. McIntyre - St. Clair Shores MI, US
Ray F. Hamilton - Novi MI, US
John H. Price - Muncie IN, US
David R. Weilant - Muncie IN, US
Ivan C. Poor - Muncie IN, US
Jim Sells - Selma IN, US

Assignee:

BorgWarner Inc. - Auburn Hills MI

International Classification:

F16H 57/02

US Classification:

74606R, 464162

Abstract:

A transfer case for AWD/4WD vehicle that employs a bushing positioned within a transfer case housing. The bushing is formed to the housing when the housing is cast. The bushing includes one or more axial notches formed in an outer surface of the bushing that fill with the housing metal during the casting process that prevents the bushing from rotating in response to a load from a slip yoke. A helical groove is formed in the inner surface of the bushing and a slot is formed through a housing wall along the bushing that allows lubricant from within the housing to flow through the bushing.

US Patent:

55205909, May 28, 1996

Filed:

Apr 13, 1995

Appl. No.:

8/420965

Inventors:

Dan J. Showalter - Plymouth MI
Mark A. Lindsey - Southfield MI
Ray F. Hamilton - Farmington Hills MI
Ronald A. Schoenbach - Farmington Hills MI

Assignee:

Borg-Warner Automotive, Inc. - Sterling Heights MI

International Classification:

F16H 344

US Classification:

475295

Abstract:

A transfer case for a part-time four wheel drive vehicle includes a planetary gear speed reduction assembly driven by the transfer case input shaft for providing high and low speed range outputs. The planetary gear assembly is disposed between and is selectively engaged by primary and secondary clutch collars, the primary clutch driving the rear (primary) output shaft in either the high or low speed ranges. The secondary clutch drives the front (secondary) output shaft through a chain drive in the low range. The clutch collars are controlled by a single (common) clutch operator. An electromagnetic clutch assembly driven by the input shaft selectively drives the front output shaft chain drive. The electromagnetic clutch functions both as a synchronizer and torque delivery device. The transfer case may be combined with a control which facilitates direct selection of vehicle drive mode.

US Patent:

54094291, Apr 25, 1995

Filed:

Jul 30, 1993

Appl. No.:

8/100560

Inventors:

Dan J. Showalter - Plymouth MI
Mark A. Lindsey - Southfield MI
Ray F. Hamilton - Farmington Hills MI
Ronald A. Schoenbach - Farmington Hills MI

Assignee:

Borg-Warner Automotive, Inc. - Sterling Heights MI

International Classification:

F16H 344

US Classification:

475295

Abstract:

A transfer case for a part-time four wheel drive vehicle includes a planetary gear speed reduction assembly driven by the transfer case input shaft for providing high and low speed range outputs. The planetary gear assembly is disposed between and is selectively engaged by primary and secondary clutch collars, the primary clutch driving the rear (primary) output shaft in either the high or low speed ranges. The secondary clutch drives the front (secondary) output shaft through a chain drive in the low range. The clutch collars are controlled by a single (common) clutch operator. An electromagnetic clutch assembly driven by the input shaft selectively drives the front output shaft chain drive. The electromagnetic clutch functions both as a synchronizer and torque delivery device. The transfer case may be combined with a control which facilitates direct selection of vehicle drive mode.