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:
Aug. 12, 1986
Filed:
May. 09, 1984
Karl Ashauer, Wolfsburg, DE;
Bernd Richter, Bokensdorf, DE;
Manfred Kalversberg, Wolfsburg, DE;
Rudiger Schmidt, Wolfsburg, DE;
Volkswagenwerk Aktiengesellschaft, Wolfsburg, DE;
Abstract
In the particular embodiments described in the specification, an all-wheel drive system is disclosed wherein either the wheels of both the front axle and the rear axle of a vehicle are driven continuously and the front axle and rear axle can be rigidly coupled with each other, or wherein the wheels of only one axle are driven continuously while the drive for the wheels of the second axle can be obtained automatically by means of a viscosity clutch arranged in the driving train between the front axle and the rear axle so that the front and the rear axles are coupled with each other essentially rigidly according to the torque. In addition, one or more coupling devices are provided which are constructed so that a decrease in the rotational speed of the front wheels, caused in particular by the actuation of the service brake, cannot be transmitted through the driving train to the rear wheels.