The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Jan. 10, 2017
Borgwarner Inc., Auburn Hills, MI (US);
Christopher Sullivan, Rochester Hills, MI (US);
Martin P. Keating, Plainfield, IL (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A transfer case for a vehicle having a selective four wheel drive mode of operation is provided. The transfer case includes a front shell boltably connected with a rear shell, a front axle output shaft and sprocket, and a main input shaft torsionally connected with a transmission and rear axle of the vehicle. A main sprocket is provided, rotatably mounted on the main input shaft. The sprocket has an axial extension. A chain torsionally connects the main sprocket with the front axle output sprocket. A clutch housing having a splined opening is torsionally connected with the main sprocket extension. A hub is spline connected on the main input shaft. A clutch pack is selectively torsionally connected with the clutch housing and with the hub. A pressure plate is provided to actuate the clutch pack. An electrically powered ball ramp mechanism is provided for axially displacing the pressure plate to torsionally join the main input shaft to the front axle input shaft causing the main sprocket extension to contact the hub.