Magnetic control valve for a slip-controlled hydraulic brake system for motor vehicles

US5711583A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Alexander Bareiss · Immenstadt im Allgäu, DE
• Michael Krauter · Untermaiselstein, DE

Key dates

• Filing date: Aug 22, 1996
• Grant date: Jan 27, 1998
• Expiry date: Aug 22, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86984
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A magnetic valve that switches at high differential pressures and furnishes a large flow cross section. The magnetic valve has an armature, which when current is supplied to a coil is movable toward a pole core counter to the force of a restoring spring. The armature is capable of opening an auxiliary valve of small sealing diameter directly and a main valve of large sealing diameter indirectly. The auxiliary valve and the main valve have a common closing body, which is movable relative to the armature with a limited stroke. The auxiliary valve communicates through a conduit of the closing body with the outflow side of the magnetic valve. In the open position of the magnetic valve, the closing body is held by a stop ring of the armature. The magnetic valve is suitable in particular for slip-controlled hydraulic brake systems of motor vehicles.