Vacuum brake booster

US7032497B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Stephan Krebs · Eschborn, DE
• Wilfried Wagner · Hamburg, DE
• Hans-Jörg Feigel · Rosbach, DE
• Holger von Hayn · Bad Vilbel, DE
• Jürgen Schonlau · Eltville am Rhein, DE
• Manfred Rüffer · Pocking, DE
• Wolfgang Ritter · Düsseldorf, DE
• Milan Klimes · Zornheim, DE
• Torsten Queisser · Frankfurt, DE

Key dates

• Filing date: Jan 24, 2003
• Grant date: Apr 25, 2006
• Expiry date: Feb 2, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/569
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Vacuum brake booster for motor vehicles comprising a booster housing whose interior is subdivided by a movable wall into a vacuum chamber and a working chamber, a control valve that controls a pressure difference acting upon the movable wall and is accommodated in a control housing that carries the movable wall, said control valve being composed of two concentrically arranged sealing seats and an elastically deformable valve member, wherein the control housing includes a cavity through which a cross member extends and delimits the axial movability of a valve piston relative to the control housing, and the cross member includes at least one projection made of an elastic material in the area where the cross member rests against the booster housing. At least one projection made of an elastic material is provided in the area of points of abutment between the control housing and the cross member.