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:
Oct. 14, 2008
Filed:
Jun. 07, 2005
Dan J. Showalter, Plymouth, MI (US);
Dan J. Showalter, Plymouth, MI (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A two-speed segmented transfer case includes an automatic transmission side, and a transfer case side. The transfer case side having a gear reduction set, and a shift sleeve for selecting between the high, or direct drive speed, and the low, or reduced gear speed. The transmission side includes a hydraulic clutch which is used to transfer power from the transmission, to the front wheels. The hydraulic clutch is operated and controlled by the use of automatic transmission fluid that comes from the vehicle transmission. When fully engaged, the hydraulic clutch causes the power coming into the transfer case to be split between the front and rear wheels. This configuration allows for the elimination of a separate actuation system that would normally control the engagement of the clutch.