Robert Boschgmbh

Erika Mank

Norbert Alaze

Rolf Hummel

Arnold Pahl

Heinz Siegel

Manfred Hauser

Ursula Eckstein

Guenter Krenz

Thorsten Duermeier

Andreas Weh

Wolf-Dieter Jonner

Karl-Heinz Willmann

Guenther Schmidt

Elmar Mueller

Roland Holzmann

Hans-Juergen Herderich

Juergen Reiner

Helmut Pueschel

Thomas Isella

Rolf Stotz

Walter Kremsreiter

Barbara Schwind-Grellmann

Johann Herr

Martin Moehle

Werner Rittler

Guenter Dzierzawa

Martin Mohle

The invention relates to a piston pump for a hydraulic, slip-controlled vehicle brake system. The piston pump has a piston, which is inserted with a part of its length into a sleeve. A tubular filter that encompasses the piston is attached to the sleeve and constitutes a captive retainer, which secures the piston in a captive fashion in the sleeve. In order to reduce an axial mobility of a sealing ring that seals the piston in the pump housing, the invention proposes attaching the filter, which limits the axial mobility of the sealing ring, to the sleeve in an axially mobile fashion.

Piston pump for hydraulic vehicle brake system

A combination electric motor-pump unit which is installed on a body of a vehicle. The pump unit includes motor fastening screws with which the electric motor is fastened to the pump housing and which connect the pump unit to the vehicle body. This significantly reduces the number of required parts. The pump unit is provided for a brake system of a vehicle.

Pump unit for a vehicle brake system

The invention relates to a piston pump for a slip-controlled hydraulic vehicle brake system. To make a piston of the piston pump easy and inexpensive to manufacture, the invention proposes that the piston be comprised of a sleeve-like shaped part and a valve seat part that is made of plastic and is press-fitted into the shaped part. A high-pressure-side sealing lip is formed onto the valve seat part and is of one piece with it. By means of a tubular support body, a restoring spring is supported on the valve seat part spaced apart from a valve seat of the valve seat part and spaced apart from the sealing lip, which prevents the valve seat and the sealing lip from being impaired by the force of the restoring spring.

Piston pump

The brake system has at least one brake circuit (I), in which a high-pressure pump is disposed. A self-aspirating charge pump is also provided, which is connected at least indirectly to the intake side of the high-pressure pump by an intake line of a supply container for brake fluid and by a pressure line. In the event of an inadequate supply of brake fluid by the charge pump, the pumping of air into the brake circuit (I) is intended to be precluded. To that end, a siphon is disposed in the intake line of the charge pump. Air aspirated by the siphon suddenly prevents pumping by the charge pump. The brake system is intended for use in motor vehicles with slip control or for automatic brakes.

Hydraulic brake system for motor vehicles

Vehicle hydraulic brake system

Growing community of inventors

Ludwigsburg, Germany

Erika Mank