Joseph W Palazzolo

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:

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.