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:
Jul. 14, 2015
Filed:
Dec. 13, 2012
Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh, Munich, DE;
Bernhard Miller, Weil der Stadt, DE;
KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Munich, DE;
Abstract
A self-energizing disc brake includes a brake-internal hydraulic arrangement with a supply circuit and an expansion vessel; a brake application device with a brake application cylinder for applying a brake pad toward a brake disc; a force transmission unit supporting the brake pad at a wedge angle on the brake application device; a tangential-force absorbing cylinder for switching over the wedge angle; an electric-motor actuator acting on the brake application device via the hydraulic arrangement; a distributor cylinder arranged in series between the electric-motor actuator and the brake application device for pressure boosting; and a control unit. A parking brake device has an adjustable screw spindle for adjusting the brake pad, which spindle is coupleable to the electric-motor actuator for driving. The tangential-force absorbing cylinder is connectable hydraulically to the supply circuit and the expansion vessel.