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:
Sep. 20, 2011
Filed:
Apr. 29, 2009
Giorgio Bordini, Modena, IT;
Giorgio Bordini, Modena, IT;
CNH America LLC, New Holland, PA (US);
Abstract
A steering system for a vehicle wherein the first and second axle shafts are driven by a power shaft powered by an engine. A differential gear is interposed between the power shaft and the first and second axle shafts. The steering system has a first hydraulic unit associated with the first axle shaft, a second hydraulic unit associated with the second axle shaft, a hydraulic circuit connecting an input of the first hydraulic unit to an output of the second hydraulic unit and an output of the first hydraulic unit to an input of said second hydraulic unit. A control unit is connected to the hydraulic circuit for varying a flow rate of hydraulic fluid in the first and second hydraulic units and an actuator associated with the control unit for controlling said control unit. The actuator is responsive to rotation of a steering wheel.