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:
Dec. 10, 2002
Filed:
Jun. 24, 1999
Bombardier Inc., Montreal, CA;
Abstract
A four-wheel drive straddle-type all-terrain vehicle has a progressive limited-slip differential that functions as an open differential when the wheel speed differential is less than a predetermined threshold, or cutting point, and functions as a progressive limited-slip differential when the wheel speed differential exceeds the cutting point. The progressive limited-slip differential is able to transfer torque to the wheel with greater traction as a generally linear function of the wheel speed differential, meaning that the more one wheel slips with respect to the other, the more torque is transferred from the slipping wheel to the wheel with traction. The progressive limited-slip differential comprises a rotary shear pump that drives a piston against a pack of clutch plates. The force of the piston against the clutch pack locks the left and right axles together to provide optimal traction in slippery conditions. Since the rotation of the pump is caused by relative wheel spin, the progressive limited-slip differential is said to be speed-sensitive in that it is responsive to wheel speed differential and exerts a locking force directly proportional to speed differential.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile