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:
Feb. 18, 2014
Filed:
Oct. 20, 2009
Jochen Walliser, Kressbronn, DE;
Frank Richter, Oberteuringen, DE;
Ewald Schmitz, Daisendorf, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An adjusting system for camshafts of an internal combustion engine having an emergency running function, comprising a phase shifter gearing with an input drive element driven by a crankshaft of an internal combustion engine, an output drive element which drives a camshaft of the internal combustion engine, and an actuating element, by means of which a relative rotation between the drive input element and the drive output element can be realized by means of a device for imparting a braking torque, which is variable for normal operation, to the actuating element. In the event of failure of the device and/or control thereof, an emergency running setting of the camshaft can be attained and maintained as a result of braking or respectively, arresting the actuating element.