Robert Boschgmbh

Guenther Schnalzger

Friedrich Megerle

Martin Kirschner

Harald Speer

Juergen Reiner

Siegfried Fritsch

Peter Zimmermann

Friedrich Mueller

Hubert Hueber

Christoph Kasper

Norbert Alaze

Wolfgang Schuller

Dietmar Kratzer

Michael Friedow

Alexander Bareiss

Klaus Heyer

Ernst-Dieter Schaefer

Jens Kolarsky

Harald Guggenmos

Andrej Gardt

Volker Edelmann

Gerhard Stokmaier

Juergen Lander

Valentin Schubitschew

Michael Hellebrandt

Nicolas Houis

Christoph Eisele

Elmar Vier

Werner Wilde

Daniel Brenndoerfer

Dietmar Sommer

Michael Krauter

Ralf Zitzelsberger

Tobias Fluck

Andreas Reize

Martin Haas

Joerg Fricke-Schmidt

Reinhard Fink

Gerd A Baur

Stefan Seitz

Ingo Buchenau

Thomas Butz

Anton Fritz

Gerold Kohlberger

Hermann Hoelle

Hans-Peter Bartosch

Michael Specker

Florian Rispler

Johann Herr

Florian Richter

Oliver Holz

Johann Guggemos

Regine Kraft

Andreas Schrade

Christian Laier

Robert Mueller

Matthias Hurst

Bernd Groll

Alice Schacherl

Stefan Timmermann

Georg Spalding

Andrew-James Griffiths

Jean-Guillaume Pic

Volkmar Wetschorek

Franz Neuhauser

Hubert Rapp

Stefan Eichmann

Kurt Mueller

Ralph Appelt

Jochen Reinhold

Robert Stoehr

Rainer Menzenbach

Ulrich Sickinger

Dieter Kawa

Ulrich Pechthold

A valve for adjusting a fluid flow includes a valve cartridge with at least one first fluid opening, at least one second fluid opening, a preliminary stage with a first valve seat and a first closing element, and a main stage with a second valve seat and a second closing element. The first valve seat is at a first axial through-opening of the second closing element, which is at least partly in a preliminary stage sleeve. The first valve seat is within the preliminary stage sleeve, and a flow path from the at least one first fluid opening to the preliminary stage leads through at least one inflow opening, which is radially introduced in the preliminary stage sleeve. An axial filter gap formed between an actuation element and the preliminary stage sleeve overlaps the at least one inflow opening at least in some regions and together form a filter.

Valve for adjusting a fluid flow

An electronically slip-controllable vehicle brake system includes a human-powered master brake cylinder, a pressure generator, an electronically actuatable valve device, a wheel brake, and an electronically actuatable actuator. The wheel brake is connected to the master cylinder and the pressure generator. The pressure generator is drivable via an external force and is configured to supply pressurized brake fluid to the wheel brake. The valve device is configured to control pressure medium connections from the master brake cylinder to the wheel brake and to a suction side of the pressure generator, and includes three pressure medium connections. The actuator is configured to switch the valve device between three different positions whereat the pressure medium connections are connected to or block from each other in different combinations.

Electronically slip-controllable vehicle brake system

A hydraulic unit for a slip control system of a hydraulic vehicle brake system comprises a hydraulic block including a socket, a first port, a pressure change damper, and a second port. The socket has a base and defining a first interior. The first port is located at the base of the socket. The pressure change damper defines a second interior and is positioned in the socket in engagement with the first port. The first port is in fluidic communication with the second interior. The second port is in fluidic communication with the second interior via a portion of the first interior outside of the pressure change damper.

Hydraulic unit for a slip control system of a hydraulic vehicle brake system

The invention relates to a valve cartridge for a solenoid valve, having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert that is inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert and has a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet guided within the valve insert. The tappet has a closing element with a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention the valve insert is configured as a one-part slotted bushing, and the valve body is configured as a bonnet-shaped bushing. The valve body configured as a bushing is pressed into a second end of the valve insert configured as a slotted bushing such that the main valve seat is disposed within the valve insert.

Valve cartridge for a solenoid valve, and associated solenoid valve

The invention relates to a method and a device for producing a high-pressure-tight connection between a pole core and a valve sleeve of a solenoid valve and to an associated valve cartridge for a solenoid valve. According to the invention, the pole core is placed in a two-part compression mold, which comprises a middle die and an outer die, in such a way that a joining gap is produced between an inner bore of the outer die and the placed-in pole core. Subsequently, the pole core is placed against the valve sleeve and the valve sleeve is inserted into the joining gap. Then, the middle die and the outer die are pressed simultaneously with the pole core such that the valve sleeve passes into the joining gap. When a pressed diameter of the pole core is reached, the valve sleeve expands and is shaped in the joining gap between a first shaping edge and a second shaping edge and is joined onto the pole core. The diameter of the inner bore tapers between the first shaping edge and the second shaping edge. Application of further force by the outer die allows the pole core to be pressed deeper into the valve sleeve, in order to carry out a desired stroke setting for the movement of an armature by performing the further shaping of the valve sleeve.

Method and device for producing a high-pressure-tight connection and associated valve cartridge for a solenoid valve

The present invention relates to a two-stage valve for controlling fluids, in particular a hydraulic fluid. The valve includes an actuating element, a pilot stage having a first valve seat and a first closing body, which is connected to the actuating element, and a main stage having a second valve seat and a second closing body. The second closing body is provided with a fastening region and a main region having a passage opening. The first valve seat is arranged at the passage opening. The second closing body is connected to the actuating element via the fastening region. The fastening region is designed elastically in such a way as to open the pilot stage by elastically deforming during actuation of the actuating element.

Two-stage valve for controlling fluids

The invention relates to an electronically regulatable vehicle brake system with traction control, in which a master cylinder is connected indirectly via a hydraulic unit to at least one wheel brake. The hydraulic unit has electromagnet valves and an externally triggerable pressure generator, for modulating the wheel brake pressure, optionally independently of the driver. For preventing wheel slip, the pressure generator is connected by its intake side to an intake conduit, among other things, that is controllable by an intake valve. To enhance the dynamics and improve the regulatability of a vehicle brake system, a self-aspirating pressure fluid storage unit is connected to the intake conduit and makes an aspiration volume available to the pressure generator.

Electrohydraulically regulatable vehicle brake system with traction control device

An electromagnetically actuatable valve for hydraulic control devices in motor vehicles is embodied as a pressure-equalized seat valve in a mode of construction comprising a hydraulic part with a valve dome and an electrical part that can be slipped onto the valve dome. In a magnet valve that is normally open, the tubular tappet that supports the closing member is supported at one point in a first bearing point, in terms of the longitudinal direction, that is embodied as a slide bearing, and a bearing ring that forms the sealing point accomplishes the hydraulic pressure equilibrium with the effective sealing diameter of the closing member that together with the valve seat forms the second bearing point. With the valve, very short switching times, in particular less than 0.5 ms, can be achieved with an economical mode of construction.

Electromagnetically actuatable valve

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

For bonding magnet valves, inserted into a hydraulic block, to an electronic control circuit for wheel slip control, the invention proposes that wire ends of coils of the magnet valve be fixed to one face end of a winding carrier and bonded by means of slit terminals, which are integral with a stamped grid that carries the electrical and electronic components that form the control circuit.

Connection of stamped grid terminal to coil wire of a magnetic valve

A multi-part filter combination is received in a stepped bore of a fluid-carrying component. A larger-diameter filter part is associated with a larger-diameter bore portion, and a smaller-diameter filter part is associated with a smaller-diameter bore portion. The two filter parts of the filter combination are connected by a connecting part. When the two filter parts are joined in their respective final position in the bore, this connecting part is detachable by means of a die to be introduced into the bore. The filter combination can be used in a valve block serving to receive a magnet valve.

Multi-part filter combination

A barrier valve including an armature, longitudinally movable toward a pole core by excitation of an electrical winding. A prestressed compression spring in a longitudinal bore of the armature, as well as a support body, loaded by the compression spring, that is braced on a shoulder of the bore. The barrier valve furthermore has a tappet, which engages the support body and is movable relative to the armature and carries a closing body of a seat valve. When the winding is excited, the closing body is movable, overcoming the valve stroke, toward a valve seat of the seat valve. When the winding is excited, the closing body can be lifted from the valve seat by hydraulic forces acting on the closing body toward the valve seat, counter to the spring force of the compression spring in the armature. The stroke of the tappet relative to the armature engaging the pole core is limited to an amount less than the valve stroke. The barrier valve can be used in slip-controlled hydraulic brake systems and is distinguished by low noise when the pressure limiting function becomes operative.

Barrier valve with pressure limiting function in particular for slip-controlled hydraulic brake systems of motor vehicles

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

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Blaichach, Germany

Guenther Schnalzger