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. 04, 2006
Filed:
Dec. 24, 2002
Jean-pierre Delage, Saint Mande, FR;
Philippe Bourlon, Dammartin en Goele, FR;
Jean-louis Penigault, Paris, FR;
Omar Brahmi, Saint Martin du Tertre, FR;
Jean-Pierre Delage, Saint Mande, FR;
Philippe Bourlon, Dammartin en Goele, FR;
Jean-Louis Penigault, Paris, FR;
Omar Brahmi, Saint Martin du Tertre, FR;
Other;
Abstract
When an element of the electro-hydraulic brake circuit () is malfunctioning, a master cylinder () can brake the vehicle. A brake actuation simulator () is then disconnected from the master cylinder () by means of an O-ring gasket () after the gasket has been compressed between a groove () in a secondary piston () and a bore () in the master cylinder. In order to prevent the gasket from being extruded from the groove during brake release (or brake pedal release) resulting from sudden braking, the invention makes provision for a pressure relief duct () to be provided inside the secondary piston. Extra pressure can then be discharged during brake release (or brake pedal release) through the brake release duct () from the inside of the chamber () of the simulator towards the primary chamber () of the master cylinder.