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:
Aug. 09, 2022
Filed:
Nov. 17, 2020
Robert Bosch Gmbh, Stuttgart, DE;
Bruno Foirestier, Velennes, FR;
Constantin Van De Velde, Brive la Gaillarde, FR;
Cyril Pechaud, Le Raincy, FR;
Enzo Perini, Vincennes, FR;
Jean-Pierre Michon, Le Plessis Belleville, FR;
Laurent Lhuillier, Le Blanc Mesnil, FR;
Nicolas Quiniou, Villemomble, FR;
Thierry Coquart, Fosses, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A master cylinder is described. The master cylinder includes a chamber delimited by a piston and supplied from a brake fluid reservoir installed on the top of the master cylinder by an end fitting engaged in a nozzle on the body of the master cylinder. The piston has a nose of reduced section upstream of its skirt guided in the bore hole of the master cylinder and the nozzle is connected to the chamber by a drill hole issuing into the chamber at least partly upstream of the piston in rest position. A valve module is installed in the drill hole to manage communication between the reservoir and the chamber as a function of the position of the piston and the pressure in the chamber with respect to the pressure in the reservoir.