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:
Apr. 15, 2008
Filed:
Mar. 24, 2003
Ulrich Uphues, Hannover, DE;
Ulrich Uphues, Hannover, DE;
General Electric Company, Schenectady, NY (US);
Abstract
The hydraulic brake system comprises a piston/cylinder unit () for activating and releasing a brake (), comprising a volume () adapted to have a pressurized working fluid supplied thereto for moving the piston () from a braking position into a release position for releasing the brake. Further, the hydraulic brake system comprises a supply line () for the supply of working fluid from a reservoir (), a discharge line () for the discharge of working fluid from the volume () of the piston/ cyliinder unit (), a first valve () and an element () for determining the flow resistance, a bypass line () provided with a second ON/OFF valve () and arranged for a flow in parallel to the discharge line (). At the start of a braking process, among the two ON/OFF valves () which in the released condition of the brake are in the closed condition, the first ON/OFF valve () is opened and, upon lapse of a presettable first time period (T) from the opening of the first ON/OFF valve (), the second ON/OFF valve () is opened.