Zf Friedrichshafen Ag

Continental Automotive Gmbh

Walter Sohner Gmbh & Co. Kg

Svm Schultz Verwaltungs-gmbh Co. Kg

Hubert Remmlinger

Karlheinz Mayr

Robert Ingenbleek

Walter Kill

Thilo Schmidt

Markus Moosmann

Wolfgang Schmid

Wolfgang Runge

Jochen Fischer

Georg Gierer

Willy Holdenried

Thomas Riepl

Karl Smirra

Helmut Mang

Günter Lugert

Georg Scherer

Frank Hamma

Markus Eisele

Rolf Schmitz

Bernd Schepperle

Bernd Fessler

Karl-Hermann Ketteler

Wolf-Dieter Gruhle

Dirk Bald

Kai Heinrich

Josef Schwarz

Gabriele Schuwerk

Walter Frei

Andreas Rekofsky

Michael Schwab

Peter Streipardt

Herbert Kiebler

Matthias Habel

Gunter Philipp

Jürgen Halter

Peter Feulner

Michael Weber

Oskar Schütz

Florian Schreiber

A pressure-control valve device for a fluid, having at least one inlet area and first and second outlet areas that can be flow-connected to one another by two seat valves coupled to one another, in which a fluid flow from the inlet area to the first and second outlet areas can be adjusted by the first seat valve and a fluid flow between the first and second outlet areas can be adjusted by the second seat valve. The first seat valve is designed as a valve aperture with a valve opening and a valve control edge and with a ball-shaped closing element that co-operates with the valve control edge. The valve opening and the ball-shaped closing element are designed such that the ratio of the diameter of the valve opening to the diameter of the ball-shaped closing element is equal to at least 0.75.

Pressure control valve device

A valve device having at least one inflow area and first and second outflow areas, which are connected with one another with regard to the flow through two poppet valves. Through the first poppet valve, a fluid inflow from the inflow area to the first and second outflow areas can be adjusted and a fluid outflow, through the second poppet valve between the first and the second outflow areas can be adjusted. The second poppet valve is designed as a cone poppet valve with a cone shaped closure body. Located upstream of the second poppet valve, between the first and the second outflow area, is a flow guide device which is designed to provide the fluid, which flows in the direction of the second poppet valve, with a swirl. The closure body of the second poppet valve has a cone angle of 60&#xb0;+/&#x2212;10&#xb0;.

Valve device with a flow guiding device

A pressure control valve unit () for a fluid with at least one inlet area (P) and first and second outlet areas (A, T) which can be connected for fluid flow with one another by two mutually coupled seat valves (). An incoming fluid flow, from the inlet area (P) to the first and second outlet areas (A, T), can be adjusted by way of the first seat valve (), and a fluid outflow, between the first and second outlet areas (A,T), can be adjusted by way of the second seat valve (). In this case, a flow-guiding device () is arranged, upstream from the first seat valve () in the inlet area (P), and imposes a specific flow characteristic upon the inflowing fluid in the area of the first seat valve ().

Pressure control valve apparatus having a flow-guiding device

A pressure control valve device with at least one inlet area and first and second outlet areas which can be connected by two poppet valves. A flow guide device (), with inflow and outflow areas () for guiding the fluid flowing from the inlet area in a defined manner in the direction of the second poppet valve, is located upstream of the second poppet valve, between the first and second outlet areas. The fluid in the flow guide device () passes in the area between the inflow and outflow areas () through a plurality of channel areas distributed around the periphery of the flow guide device () and separated from one another, which are shaped at least approximately helically and impart an at least approximately vortex-like flow pattern to the fluid flowing in the direction of the second poppet valve downstream of the outflow area ().

An electromechanically activated motor vehicle transmission () such as an automated manual transmission () or a transfer case (). This transmission includes at least a transmission housing (), an electromagnetic selecting or shifting device () and an electric motor () by which the selecting or shifting device () can be actuated. In the inventive motor vehicle transmission (), the electric motor () of the selecting or shifting mechanism () arranged within the transmission housing () and the motor housing () of the electric motor () is designed so that it corresponds to a portion of the transmission housing ().

Vehicle gearbox with an integrated electric motor

A housing () with at least one electrical connection () through a housing wall () can be manufactured especially economically and can facilitate an especially economical lacing of electronic components () present on the interior and on the exterior of the housing (). The electrical connection () is enclosed by a housing material and additionally sealed by a sealing material (). The sealing material () also advantageously serves to seal a top () and a bottom () to the housing wall (). Through the combination of the casing of the electrical connection () of the housing () and the sealing material (), this arrangement is, moreover, especially impervious to oil or other aggressive media.

Sealing a controller

An electromagnetic dual-action control valve with a housing (), with connections () for inflow and outflow lines for a pressure medium, with a solenoid () and with two armatures arranged to move within the solenoid () for opening and closing the line connections. To simplify the structure of such a dual-action control valve, it is provided that one of the armatures is formed as a hollow armature () with a closed end (), within which an inner armature () is arranged to move coaxially, and the hollow armature () has openings () for the pressure medium, of which one opening () can be closed by a sealing surface () of the inner armature ().

Electromagnetic double switching valve

A proportional pressure adjustment valve is described which comprises one valve part with inlet and outlet openings () and at least one closing mechanism () for control of a valve (), the same as a magnet part having one magnet core, one magnet coil and one displaceably disposed magnet armature. An actuating element () cooperates with the armature, actuating the spherical closing mechanism (). The hydraulically active cross section of the valve () is essentially determined by the length of the valve (L), the diameter of the valve (D) and th diameter (d) of the part () of the actuating element () which penetrates into the valve. According to invention, the ratio of the length of the valve (L) to the diameter of the valve (d) is less than 2.0.

Proportional pressure adjustment valve

The present invention concerns a method and a device for machine diagnosis and, in particular, for transmission diagnosis in a machine or motor vehicle. The measurement system, according to the invention, comprises a coil () wound on a coil core (), on the surface of which ferritic wear particles () to be detected accumulate. Opposite the coil () a rotating toothed wheel () is arranged which influences the inductance of the coil (). The output signal of the coil () is pulsed with a constant amplitude, the pulse frequency depends on the rotation speed of the toothed wheel (). Deviations of the amplitude are attributable to the accumulation of ferritic wear particles () on the coil () and therefore provide a measurement of the condition of the machine or transmission.

Method and device for machine diagnosis, especially for transmission diagnosis

Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automatic motor vehicle transmission, and comprising an electronic control device, whereby the magnet core may be moved back and forth between a control region and a hold region with a magnetic hold position of the magnet armature and a defined transition from the control region to the hold position may be executed and whereby mechanisms are provided for recognition of the movements of the magnet armature.

Method for control of a proportional magnet with a hold function

A method for machine diagnosis and, in particular, for transmission diagnosis of a machine or motor vehicle. The measurement system comprises a capturing magnet (), on the surface of which the ferritic wear particles () to be detected accumulate. A binary measurement signal is produced by a reed contact () arranged opposite the capturing magnet (). This measurement gives an indication of the condition of the machine or transmission.

A proportional pressure-regulator valve comprising a load-dependent control step and a method for the load-dependent regulation of a pressure level of a pressure medium with one proportional pressure-regulator valve. The load-dependent control step is obtained with a proportional magnet () having at least two gaps () for regulating the magnetic force. The size of the gaps () can be adjusted independently of each other. While a first gap (!) is current-dependent regulated, the size of the second gap () can be regulated via a pressure force adaptable in proportion to a load requirement in the hydraulic circuit.

Proportional pressure-regulator valve

The invention relates to a vibration damper for damping fluid vibrations in a hydraulic system, especially in a hydraulic control circuit for a motor vehicle gear box with an elastically deformable damper element ( ), According to the invention, the vibration damper is provided with a separate sealing element ( ) which guarantees the functioning of the hydraulic system in the event of a breakdown e.g. the damper element ( ) bursting.

vibration damper for damping fluid vibrations in a hydraulic system

The invention relates to a proportional valve, especially for regulating the shifting pressure in an automatic transmission for a motor vehicle. The inventive valve is subdivided into a hydraulic section and into an electric section by a magnetic interface (XXXX). The bearing points ( ) of the hydraulic valve slide are arranged on the side of the valve opposite the electric coil, i.e. in the hydraulic section, so that the armature ( ) projects into the coil space in a floating manner.

Proportional valve

A proportional pressure control valve is described capable of serving as a pilot, servo or direct control valve and having a pressure reducing function and a pressure maintaining function. The valve is comprised essentially of a valve housing ( ) with inlet and outlet ports ( ), a control element ( ), an armature rod ( ) and a proportional magnet ( ). The proportional magnet ( ) is an assembly of a magnet core ( ), a magnet armature ( ) and a magnet coil ( ), whereby the proportional magnet ( ) when in its range of operation possesses a nearly constant magnetic strength. In accord with the invention, when in a holding position of the magnetic armature ( ) the smallest possible gap ( ) exists between the magnet armature ( ) and the magnet core ( ). This gap is so dimensioned that the magnetic force between the two said components ( ) in the holding position is greater than the magnetic force in the operational area of the proportional magnet ( ) and that the magnetic armature ( ) can be made fixed in position by this said magnetic force.

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Friedrichshafen, Germany

Hubert Remmlinger