Joseph Palazzolo

US Patent:

6605018, Aug 12, 2003

Filed:

Dec 14, 2001

Appl. No.:

10/021886

Inventors:

Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 4806

US Classification:

475222

Abstract:

A motor vehicle power transfer unit for distributing torque between a front wheel drive line and a rear wheel drive line. The power transfer unit includes an input portion, an output portion, a parallel gear set, a non-parallel gear set and a front wheel differential all enclosed within a common housing as an integrally packaged assembly. The input portion is adapted to connect to an output portion of the transmission assembly and output portion is adapted to connect to an input portion of the rear wheel drive line. The parallel gear set, coupled to the input portion transfers power to the non-parallel gear set and to the output portion. The front wheel differential is also coupled to said input portion and includes left and right differential outputs for connecting to the front wheel drive line.

US Patent:

6620069, Sep 16, 2003

Filed:

Dec 28, 2001

Appl. No.:

10/034101

Inventors:

Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 3708

US Classification:

475198, 475210, 475221, 180251

Abstract:

A motor vehicle power transfer unit for distributing torque between a front wheel drive line and a rear wheel drive line. The power transfer unit includes an input portion, an output portion, a non-parallel gear set and a parallel gear set. The input portion is adapted to connect to an output portion of the transmission assembly and the output portion is adapted to connect to an input portion of the rear wheel drive line. The non-parallel gear set is coupled to the input portion and transfers power to the parallel gear set, which is coupled to the output portion. A front wheel differential located in the power transfer unit, may also be coupled to the input portion.

US Patent:

6663527, Dec 16, 2003

Filed:

Dec 27, 2001

Appl. No.:

10/034575

Inventors:

Perry Edward Phelan - Harsens Island MI
Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 4708

US Classification:

475107, 475108, 475204

Abstract:

A transfer case system distributes torque between primary and secondary drive trains. The system comprises a planetary gear set having a sun gear, a ring gear, a planetary gear intermeshed with the sun gear and ring gear, and a planetary carrier rotatably connected with the planetary gear. The system also comprises a torque sink connected with the sun gear and a torque input shaft connected with the ring gear and the primary drive train. The torque sink applies a braking force to the rotation of the sun gear in response to instructions from a controller, causing the ring gear to output torque to a secondary drive train.

US Patent:

6672850, Jan 6, 2004

Filed:

Dec 21, 2001

Appl. No.:

10/037022

Inventors:

Joseph Palazzolo - Livonia MI
Perry E. Phelan - Harsens Island MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F01G 2116

US Classification:

418 21, 418170, 418127, 417 53

Abstract:

A torque control crescent oil pump, having low parasitic loss and rapid pressure transient response, and a method for controlling oil flow within the pump, are provided. In one embodiment, the crescent oil pump comprises a housing, toothed annular gears cooperatively rotating about preferably offset first and second axes, and a crescent body. The crescent body is adapted to move from a first position to a second position. In the first position, the crescent body is adapted to form a seal between the annular gears. In the second position, the crescent body is positioned so that it does not form a seal between the annular gears. In another embodiment, an actuating device moves the crescent body from the first position to the second position.

US Patent:

6688851, Feb 10, 2004

Filed:

Dec 28, 2001

Appl. No.:

10/040848

Inventors:

Perry Edward Phelan - Harsens Island MI
Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F04B 4900

US Classification:

417212, 417213, 417278, 475 91

Abstract:

This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a moveable piston as an end plate. An actuator, attached to the piston, controls the movement of the piston. In one position, the piston is in contact with the internal components of the pump. When the actuator moves the piston, the piston loses contact with the pump, thus allowing a free flow of fluid between the inlet and outlet of the pump. In this configuration, the pump is no longer able to generate the pressure that creates torque in the planetary gear system.

US Patent:

6702701, Mar 9, 2004

Filed:

Dec 28, 2001

Appl. No.:

10/040579

Inventors:

Perry Edward Phelan - Harsens Island MI
Joseph Palazzolo - Livonia MI
Todd Alan Kendall - Clinton Twp. MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 4708

US Classification:

475 91, 475 94, 475107

Abstract:

This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a bore and a valve, which operates to control the flow of fluid within the bore. When the valve is positioned within the bore to block the flow of fluid between the inlet and outlet of the pump, pressure is generated within the pump. The pump pressure is sufficient to generate torque in the planetary gear system.

US Patent:

6719660, Apr 13, 2004

Filed:

Apr 17, 2002

Appl. No.:

10/124644

Inventors:

Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

B60K 17344

US Classification:

475221, 475206, 180248

Abstract:

The present invention provides a integral subassembly for the power train of an all wheel drive automotive vehicle. The subassembly includes a final drive unit coupled to a transmission output. The final drive unit itself includes a torque multiplier and an output adapted to provide power to the front wheels of the vehicle. Also included in the subassembly is a front differential coupled to the final drives output. The front differential includes a left front wheel output and a right front wheel output. A power transfer unit in the subassembly is also coupled to the transmission output and provided with a non-parallel gear set and a rear driveline output, the latter being adapted to provide power to the rear wheels of the vehicle. The power transfer unit is coupled to the transmission output independently of the final drive unit. Finally, a housing commonly encloses the final drive unit, front differential and power transfer unit allowing them to be integrally provided as a subassembly.

US Patent:

6725744, Apr 27, 2004

Filed:

Apr 3, 2002

Appl. No.:

10/115147

Inventors:

Joseph Palazzolo - Livonia MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 3706

US Classification:

74665GC, 74665 GE, 180233

Abstract:

A power train assembly for an all wheel drive automotive vehicle. The power train assembly includes a transmission assembly having a transmission output. A final drive unit is coupled to the transmission output and includes a torque multiplier. After torque multiplication, power from the final drive is provided to the front wheels of the vehicle. A power transfer unit diverts power from the transmission to the rear wheels of the vehicle. The power transfer unit is coupled to the transmission output such that power is received therefrom prior to torque multiplication by the final drive unit.