Robert Boschgmbh

Friedrich Megerle

Guenther Schnalzger

Guenter Kaes

Norbert Alaze

Guenther Hohl

Werner Wilde

Martin Kirschner

Siegfried Fritsch

Erich Ludewig

Wolfgang Schuller

Klaus D Muller

Dirk Hofmann

Dietmar Baumann

Michael Friedow

Guenter Wolff

Ernst-Dieter Schaefer

Harald Speer

Martin Oehler

Hans-Joerg Fees

Klaus Schmidt

Juergen Lander

Michael Hellebrandt

Dietmar Sommer

Andreas Reize

Ralf Zitzelsberger

Alexander Eichhorn

Thomas Butz

Kurt Herzog

Gerd A Baur

Hubert Hueber

Hermann Hoelle

Johann Herr

Michael Specker

Johann Guggemos

Christian Laier

Georg Spalding

Jochen Reinhold

Andrew-James Griffiths

Robert Stoehr

Rainer Menzenbach

Ulrich Sickinger

Dieter Kawa

Ulrich Pechthold

A hydraulic part of a magnet valve is received in a bore of a valve block. The hydraulic part is secured to the valve block with a calked heel of a securing bush that is slipped onto a guide sleeve of the hydraulic part. The securing bush rests on an annular shoulder of the guide sleeve and engages a jacket wall of the guide sleeve with a press fit, and one edge of the securing bush is adapted to a rounded-out throat between the jacket wall and an end wall of the annular shoulder by means of plastic deformation. A valve sleeve engages a portion of the bore of the valve block with a press fit. The calked heel, the plastically deformed edge of the securing bush, and the press fit of the valve bush seals that seal off against fluid are achieved without using additional rubber-elastic sealing means.

Magnet valve, in particular for a traction-controlled hydraulic vehicle brake system

The invention relates to an electromagnetic device, in particular for a slip-controlled, hydraulic vehicle brake system, having at least a first magnet valve which is closed in its currentless basic position and having at least a second magnet valve which is open in its currentless basic position, the first and second magnet valves being received in receiving bores of a valve block. The invention provides that the first and second magnet valves have structurally identical, one-piece valve housings, in each of which all the magnet valve components are received essentially without any axial protrusion, and that the total length of each of the first and second magnet valves is recessed in the receiving bores of the valve block, and that a nonferromagnetic spacer ring is disposed between a face end, pointing toward the valve seat, of at least one magnet coil and a dividing plane between this magnet coil and the associated pole piece.

Electromagnetic device, especially for an anti-slip, hydraulic vehicle brake system

A rod-shaped solenoid valve that is provided for insertion into a receiving bore of a hydraulic block of an antilock hydraulic brake system of a vehicle, wherein a fluid influx takes place through an axial bore of a valve seat part that is inserted into a valve support. For simple sealing, a plastic end piece is placed onto the end of the valve support that prodrudes into the receiving bore and seals the valve support in relation to the receiving bore and also seals the valve seat part.

Solenoid valve for a slip-regulated hydraulic brake system of a vehicle

A piston pump, which is provided as a return feed pump for a slip-regulated motor vehicle brake system. In order to simplify the manufacture, a sleeve in the form of a tubular piece is clamped between a fastening element which is inserted into the cylinder bore using a self-clinching technique, and the cylinder bore, and is thus sealed and fixed in place. In addition to the simple manufacture of the sleeve out of reasonably priced tubular material, the piston pump has the advantage of a sealing of the sleeve in the cylinder bore without a separate sealing element such as a sealing ring.

Piston pump

Hydraulic unit, particularly for a slip-controlled vehicle brake system

Multiposition valves are used for instance to interrupt a flow of pressure fluid that begins at a pressure source, such as a master cylinder, and leads to a consumer, such as a wheel brake. To that end, such multiposition valves have a valve seat, a valve seat closing body, an electromagnet which presses the valve closing body against the valve seat, and a valve opening spring, so that when the electromagnet is turned off, the valve closing body assumes an outset position spaced apart from the valve seat. To reduce noise production, especially when power is supplied in pulsed fashion to the electromagnet a further spring is provided that urges the armature in the direction of its outset position, so that when the valve opens, the armature can lead ahead of the valve closing body. The valve is advantageously usable in a hydraulic vehicle brake system where irritating noise production during operation is to be avoided.

Electrically controllable valve, especially for installation in a

Hydraulic unit for traction-controlled motor vehicle brake systems

A hydraulic unit for wheel slip control, which is located between a master cylinder and wheel brake cylinders. Reflection damping devices are installed in main brake lines located between the hydraulic unit and the master cylinder which damp pressure waves that originate at control valves of the hydraulic unit. When the control valves are triggered in the wheel slip control mode the pressure waves are largely kept away from the master cylinder. By the means of length adaptation of the main brake lines, the brake lines can also contribute to the damping.

Hydraulic vehicle brake system with a hydraulic unit for wheel slip

Electromagnetic valve housing containing throttle and check valve which

Hydraulic vehicle brake system with a hydraulic unit for wheel slop

A structurally simplified brake system which increases its functional reliability. The brake system has a brake pressure line extending between a master brake cylinder and a wheel brake. A shutoff valve is connected in parallel with a pressure limiting valve disposed in the brake line. A high-pressure pump toward the wheel brake side is capable of feeding pressure fluid into the line when the shutoff valve is closed. If a response pressure of the pressure limiting valve is exceeded, the pressure fluid can be diverted back to the master cylinder. The shutoff valve has a valve seat toward the wheel brake and a closing member toward the master cylinder which closing member is capable, by the action of a magnetic force on an armature of engaging the valve seat. A compression spring is disposed between the armature and the closing member and in the valve closing position exerts a closing force, adapted to the response pressure, upon the closing member. The shutoff valve and the pressure limiting valve are thus attained in a single valve unit.

Hydraulic brake system for motor vehicles

A quiet closure check valve, including a housing having a valve seat toward the housing, a ball is associated with the valve seat to close the valve. The ball is received longitudinally displaceably in a recess of a spring-loaded support element that is defined by a bottom and a collar-like portion. Upon closure of the check valve, the support element rests on the housing, by spring action. The ball is lifted from the bottom of the support element and applied to the valve seat by the pressure of the fluid, in a manner free of spring forces. In this way, bothersome vibration of the ball is avoided.

Check valve

Growing community of inventors

Asperg, Germany

Friedrich Megerle