Mannesmann Aktiengesellschaft

Wabco Westinghouse Steuerungstechnik Gmbh & Co.

Wabco Westinghouse Steuerungstechnik Gmbh

Peter Muller

Rudolf Moller

Helmut Gottling

Gerhard Scharnowski

Walter Brausfeld

Norbert Fortmann

Ralf Kook

Thomas Liesenhoff

Jens-Olaf Hartig

Raimund Buschmann

Diane Gottling

Rudolf Muller

A base-plate distributing valve comprised of a valve body, a base-plate element and a valve element slidably disposed within a longitudinal bore of the valve body. Pressure medium line ports and pressure medium lines are contained within the valve body and the base-plate element. The base-plate element contains an opening into which the part of the valve body which contains the valve element may be inserted. Within the valve element are valves. A drive element controls the valve element which shifts position the position of the valves within the longitudinal bore of the valve body to permit alignment of the pressure medium lines for flow therethrough. Accordingly, when the valve body is inserted into the base-plate element in a pressure-medium-tight seal, a substantially straight-lined flow of a medium through the base-plate element at a high flow rate is achieved.

Base-plate distributing valve

A modular valve arrangement, including: a plurality of individual values each having a passage therein with a longitudinal axis, and a fixing arrangement for joining the valves together into a joined condition in which the passages cooperate to form at least one pressure-fluid line through the entire valve arrangement. The fixing arrangement includes, for each valve, a dovetail tenon on one surface of the valve and a dovetailed mortise on an opposite surface of the valve. The mortise and tenon of adjacent valves being engageable with one another in the joined condition, and extending on their respective valve side in a direction perpendicular to a longitudinal axis of the pressure-fluid line. For securing the valves in the joined condition, each valve includes a nub on one surface and a corresponding depression on an opposite surface of the valve arranged so that the nub of one valve engages the depression of an adjacent valve in the joined condition.

Modular valve arrangement

The invention relates to a profiled tube for working cylinders without a piston rod having a cylinder chamber which extends in longitudinal direction and a piston guided movably therein and connected to pull means, and a carriage connected to the pull means and guided in a slide guide arranged on the profiled tube. In order to increase the torsional rigidity of a profiled tube for working cylinders having rodless pistons of this type, to guide the piston in a manner secured against turning and, at the same time, obtain a compact structural shape, the present invention provides a profiled tube have a closed single-piece cross section, that the cylinder chamber have an ovoid, preferably elliptical cross section arranged within the cross section of the profiled tube, that pressure-fluid guide channels extending in longitudinal direction are arranged within the cross section of the profiled tube, and that the slide guide is arranged along one of the outer longitudinal sides of the profiled tube and unitarily formed as a single piece with the tube.

Profiled tube for a working cylinder without a piston rod

A plug-type connection for a tubular body comprising a tubular holding element (1) slit in crown-like manner to form tongues (2) to receive the tubular body (30), and an annular collet (20) to be inserted onto the holding element (1) to clamp the end region of the tubular body (30) to the holding element (1). The collet (20) is a single piece and U-shaped in longitudinal section and has an inner arm (21) which is slit in crown-like manner and an outer arm (22). A circumferential shoulder (8) is formed on the holding element (1) outside the central bore (3). A pin (26) on the end of the outer arm (22) of the collet (20) fits into a depression (9) in the shoulder (8) of the holding element (1). A spherically shaped projection (27) fits into spherically shaped recess (10) in the shoulder (8) of the holding element (1). The recess (10 ) is staggered by an angle of rotation with respect to the depression (9). The spherically shaped projection (27) is located on the end of the pin (26).

Plug-type connection for a tubular body

A solenoid valve battery includes in each case a solenoid valve (9), which exhibits coil contacts and can be constructed advantageously for the variation of the number of device components for the handling of connections and for cable assembly as well as with respect to its device size. A pluggable connector module (13) is furnished for the contacting of the protective grounded conductor (19), of the signal line, and of the neutral conductor (20). At least one protective grounded conductor (19) and/or a parallel running neutral conductor (20) are through-connected and running in the longitudinal extension direction (17) of the strip. The grounded conductor (19) and the neutral conductor (20) can be contacted by plugging the connector modules (13) together in longitudinal direction. A signal line (21) is furnished individually at each connector module (13) and includes a connector clamp (23) at an input (22) and a connection to the corresponding coil contact (20a) at an output (24).

Fluidic connector strip with base plate modules and a solenoid valve for

A device is furnished for the connection of electrical contacts, in particular for solenoid valves disposed in rows, where the device includes mutually engaging contact pins. The following construction is advantageous for an arbitrarily large number of electrical users disposed in a row. Several successively disposed, fixed support bodies (2) are furnished for coaxially disposed contact pins (3). The coaxially disposed contact pins (3) can be electrically connected to each other. Rotor bodies (5) are rotatably supported between, in each case, successively disposed support bodies (2). Each rotor body (5) exhibits a contact projection (6), wherein the radial distance (7) of the contact projection (6) from the support-body center longitudinal axis (4) corresponds to the radial distance of the individual contact pins (3) from the support-body center longitudinal axis (4).

Connector module for providing electrical contacts to magnet valves

A cylinder without a piston rod comprising a cylinder, a piston for moving along the axial direction within the cylinder, and tension belt means for directing the piston witnin the cylinder. The piston comprises two piston halves which are interconnected by bayonet connection elements. A holding element is held within the piston halves for holding the ends of the tension belt means in place.

Cylinder without a piston rod

A working cylinder is described which features a cylinder of compact construction. The openings provided for the tension member can be very well sealed by simple means. The tension element features a cross-section having a continuous circumferential line. The size of the cylinder is also reduced through the use of a generally elliptical piston. The tension element is preferably comprised of several plastic tension strands encased in a jacket of plastic material which also has a generally elliptical cross-sectional shape.

Working cylinder and tension member therefor

An electrical apparatus is provided for use with a potentiometer or variable resistance element which does not require a mechanical connection between a contact member and an activating mechanism. This is accomplished by using a magnet in at least a portion of either the contact member or the activating mechanism while constructing at least a portion of the other of such contact member and the activating mechanism of a ferromagnetic material.

Electrical apparatus used with a potentiometer and/or variable

A contactless proximity switch and mounting arrangement for determining the position of a movable member within a cylinder which has two end covers secured on the cylinder by means of a plurality of tie rods, includes a switch housing which secures to one of the tie rods. A contact opening formed in the switch housing has disposed therein, a switch having a pair of contacts and a permanent magnet disposed in a fixed manner. One pole of the permanent magnet is connected to a first contact, while the second pole is disposed in a contacting relation to the cylinder. A second contact is electrically coupled to the cylinder at a position a predetermined distance from where the second pole is disposed. As the movable member, which is constructed of a ferromagnetic material, nears the switch housing, the air gap between the second contact and second pole is bridged and the contacts close indicating the proximity of the movable member to the switch element. The entire proximity switch apparatus can be moved along the longitudinal axis of the cylinder.

Proximity switch in mounting arrangement

A position-sensing potentiometer arrangement for sensing the position of a movable piston and piston rod configuration within a linear actuator includes a first support member extending longitudinally within an open-ended recess formed in the rod and a sliding contact mounted thereon. A tubular support is mounted to a stationary closed end of the linear actuator and extends into the recess to surround a portion of the first support member and a center support member which is also mounted on the closed end of the a actuator. A longitudinally-extending resistance element and a parallel conductor element are mounted on and supported by the center support member. As the first support member moves through the tubular support, the sliding contacts couple the resistance element to the conductor element to provide a resistance value variable as a function of the position of the piston rod. In the event of movement of the piston rod, other than longitudinal movement, the resistance element is isolated by the tubular support against contact by the piston rod.

Position-sensing potentiometer arrangement

This invention relates to an activation apparatus for valves, specifically electromagnetically-activated multiway valves. The activation apparatus exhibits an activation element having a first stop and a second stop, which are arranged in facing-relation to one another, and to a housing projection formed by a graduated opening leading into the valve, so that a movement of the activation element, in the direction of its longitudinal axis, is limited or prevented. On the circumference of the activation element, there is a sealing element which is in sealed contact against the wall of the housing recess or graduated opening, which holds the activation element. The two stops and the sealing element are permanently connected with the activation element so as to form essentially a single-body construction. A valve moving arrangement, formed on the activation member and extending into the valve housing, is movable to an engaged position whereby, operation of the activation member effects manual operation of the valve under emergency or manual conditions.

Valve activation apparatus

A variable point position determining arrangement includes a housing having a stationary portion secured to a fixed member as, for example working cylinder, and an extendable portion secured to a member movable in relation to the fixed member, as for example piston rod. An elastic element, such as a tension spring, is connected between the stationary portion and an extendable portion of the housing. Such elastic element is stretched or relaxed an amount proportionate to the travel of the movable member. The displacement transducer having an actuator rod and a projecting pin connected to the elastic element at approximately a middle point, follows movement of the elastic element and outputs a distance signal which is a function of the movement of the actuator rod and elastic element. The distance signal can be fed to a control circuit to derive the position value of the movable member therefrom.

Growing community of inventors

Hanover, Germany

Peter Muller