Vacuum brake power booster

US5460074A · kind A · utility

Assignee

• ITT Automotive Europe GmbH · DE

Inventors

• Jürgen Balz · Idstein, DE
• Karlheinz Bill · Dreieich, DE
• Horst Krämer · Ginsheim-Gustavsburg, DE
• Peter Drott · Frankfurt am Main, DE
• Jürgen Bauer · Pocking, DE
• Heinz Zingel · Bad Camberg, DE
• Holger von Hayn · Bad Vilbel, DE
• Ralf Harth · Darmstadt, DE
• Jürgen Schonlau · Eltville am Rhein, DE
• Wolfgang Ritter · Düsseldorf, DE

Key dates

• Filing date: Sep 30, 1994
• Grant date: Oct 24, 1995
• Expiry date: Sep 30, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/72
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A vacuum brake power booster for automotive vehicles having control valve which is operable, irrespective of an actuating rod displacing a valve piston (9), by an electromagnet which actuates a third sealing seat thereby ventilating the working chamber. To minimize the independent actuating force generated by the electromagnet the electromagnet, of the present invention, is rigidly connected to the valve piston, and is arranged to be slidable in the control housing so that the third sealing seat is synchronously movable with the valve piston.