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:
Jun. 06, 2017
Filed:
Aug. 31, 2011
Karsten Warfen, Sohren, DE;
Karsten Warfen, Sohren, DE;
Senvion SE, Hamburg, DE;
Abstract
A hydraulic actuation device () for a brake device of a wind turbine including a hydraulic control line (), which runs from a hydraulic system circuit (P) of a wind turbine to at least one brake cylinder () of a brake device. At least one restrictor () is arranged in the control line (). At least one branch line () includes a pressure regulating member () that branches off from the control line () upstream of the restrictor () in the pressure build-up direction, bypassing the restrictor (), and leads back into the control line () downstream of the restrictor (). The pressure regulating member () open when the pressure present on the output side is low, but closes when the pressure at the pressure regulating member () on the output side of the pressure regulating member () exceeds a preset closing pressure (P).