Abstract: A valve arrangement comprising several valve units placed in rows side by side in the a direction in a common row defining plane. Each valve unit comprises a base plate with supply and venting ducts extending therethrough and two mutually parallel spool receiving spaces each having a valve spool. The supply and venting ducts run in the partition, placed between the two spool receiving spaces, of the base plate and simultaneously communicate with the two spool receiving spaces. Such a valve arrangement may be manufactured with compact dimensions and have high flow through rates.

Abstract: A fluid power cylinder comprises a terminally arranged piston rod guide device through which a guide station of the piston rod with a prismatic cross section runs. Two diametrally opposite prism side edges of the guide section fit into circumferentially extending guide grooves in a plurality of guide rollers, the surface sections, which laterally adjoin prism side edges, of the guide section being supported by the flanks of the guide grooves.

Abstract: A compact drive cylinder with a cylinder barrel, an end cap and a guide cap is provided. In the cylinder barrel an axially sliding piston is arranged, on which a piston rod is mounted which extends through the guide cap. The piston divides a thrust chamber off in a fluid-tight manner chamber from a return chamber, the thrust chamber being connected with a thrust chamber port and the return chamber being connected with a return chamber port respectively in a fluid-tight fashion. Both the thrust chamber port and also the return chamber port are arranged in the end cap. An axially extending abutment rod having an abutment extends through the end cap and has its internal end extending through the piston into the return chamber so that an abutment for the piston is located in the return chamber.

Abstract: A fluid operated rotary drive, which possesses a drive means having an output drive shaft able to be driven for oscillating motion. On one axial side of the drive means a position detection means is arranged, which possesses an actuating member connected with the output drive shaft and which on rotary motion of the output drive shaft performs an oscillating movement about a pivot axis. The actuating member cooperates with sensors, which may be set on holders. Each holder is arranged on its own setting ring, such setting rings being arranged coaxially in relation to each other with the holders extending away from the drive means. The setting rings are able to be turned in relation to one another and furthermore in relation to the housing for setting the positions to be detected and may be fixed in the settings made.

Abstract: An annular sealing unit for multiway valves. It comprises an integral housing ring, wherein an elastic sealing element is arranged. The housing ring possesses a cylindrical holding wall for attachment in a recess in the valve housing with a press fit. Furthermore it possesses two side walls projecting radially inward. The one side wall has an arcuate form and the other one is stepped. The stepped design means that there is a satisfactory engagement face for fitting the sealing unit. The arcuate shape of the first side wall prevents any skewing during pressing home during fitting in place. Furthermore a method for the manufacture of the sealing unit is provided, wherein the housing ring is manufactured by forming of the material without machining.

Abstract: A coupling device for linear drives for linking a drive part performing a linear movement in an axial direction with a guide part guided for longitudinal movement on a longitudinal guide parallel to the direction of movement. A force input part connected with the drive part and a force output put part connected with the guide part are provided, the force input part and the force output part being coupled together kinetically by means of an intermediately placed link member. As a link member and a elongated or longitudinal spring member is provided which is able to be bent in at least one transverse direction in a resiliently elastic manner and is non-yielding in its longitudinal direction, said spring member being aligned at least substantially in the axial direction. It is secured at a first connection point to the force input part and at a second connection point spaced from the first connection is connected with the force output part, in each case non-movably in the axial direction.

Abstract: A pressure control valve, which possesses a primary pressure port, a secondary pressure port and a venting port. For control of the secondary pressure a valve operating device is present which is actuated by a control pressure present in a control chamber. A mechanical spring device urges the valve operating device against the direction of action of the control pressure in such a manner that when ambient pressure obtains in the control chamber, it automatically assumes a basic setting, in which the secondary pressure port is connected with the venting port for fluid flow. It is in this manner that there is an automatic venting of the secondary pressure port when the control chamber is free of pressure.

Abstract: A valve arrangement having a base plate with valve ducts, a main valve a pilot valve with actuating units. In order to obtain a compact design, the base plate constitutes the housing of the main valve and contains a valve spool receiving space with an associated valve spool. The base plate is divided into a central part and two connection parts mounted on opposite ends thereof, which connection parts constitute both a end cover for the valve spool receiving space and also a limb, which delimits an accommodation space for the actuating units. When the connection parts are removed the actuating units and the valve spool may be fitted in an extremely simple fashion.

Abstract: A pistonrod-less linear drive, whose housing having a longitudinal slot contains a drive part for longitudinal movement therein. A transmission member linked with the drive part projects right through the longitudinal slot to the outside. Adjacent to the two flanks of the longitudinal slot there is a respective resistance strip which extends in the longitudinal direction of the slot and is secured to the housing. A wiper contact arrangement is provided on the transmission member which simultaneously makes contact with both resistance strips and on longitudinal movement of the transmission member slides along the resistance strips. Connection means are provided to render possible connection of the two resistance strips with a position detecting and evaluating device.

Abstract: A fluid power operated advancing unit has housing and a plunger adapted to run axially therein. The plunger is designed in the form of a three sided prismatic body at least along its length section running in the housing, said body being guided in the housing at its three side surface, whereas three transitions between respective adjacent side are not guided. The result is accordingly an extremely accurate guiding action for the plunger while simultaneously preventing rotation thereof.

Abstract: A multiway valve has a valve spool space in its valve housing in order to accommodate two valve spools arranged in tandem. Since such two valve spools are able to be operated independently of each other, different valve functions may be performed by the valve.

Abstract: A valve station is suggested which is provided with a fluid distribution device (5) with an equipment panel (8). A plurality of multi-way valves (12) are mounted on the panel (8), which are controlled by an electrically actuable valve drive (16). The multi-way valves (12) are aligned in such a manner that the direction (37) of the switch movement of its given obturator (36) extends rectangularly with respect to panel (8). The fluidic connection of a given multi-way valve (12) with an internal feeding conduit (26) of the fluid distribution device (6) is performed through an orifice (57) of a valve conduit (59) which is provided on the front face (53) of the given multi-way valve (12) opposite of panel (8).

Abstract: A stripping device comprising a stripping ring and a locating ring. The stripping ring is set on a holder in a fitted position thereof. The locating ring is resiliently elastic in design and fits in an annular groove provided in the holder for axially locking the stripping ring in relation to the holder. The stripping ring and the locating ring are attached together with the formation of a subassembly. It is in this manner that the stripping device may be relatively simply produced and handled.

Abstract: A distributor device for compressed air and/or other fluid. The distributor device possesses a distributor housing with a distributor space opening at a longitudinal slot. Adjacent to the longitudinal slot two mutually opposite sealing bars are provided. On the rear side of each such sealing bar there is a secondary pressure space provided in addition to the distributor space and which is arranged to be acted upon by pressure fluid in order to thrust the sealing bar against each other in a sealing fashion. It is in this manner that a reliable sealing action is provided independently of any residual plastic deformation of the material of the sealing bars.

Abstract: A linear drive, on which housing a longitudinally moving output drive part is provided. In the possible path of motion thereof a limiting device is arranged, with which the end or terminal position of the output drive part may be preset. The limiting device comprises at least one holder with an abutment-shock absorber unit. Along the housing a plurality of positioning points is provided, at which support element may be fixed in place, which render possible an interlocking or positive mounting of the holder. The abutment-shock absorber unit is able to be steplessly set in position in relation to the holder. It is in this manner that an exact and reliable adjustment of the path of travel of the output drive part may be undertaken.

Abstract: A transceiver module for coupling between cells in a distributed intelligence network and a twisted pair line. The module receives power from the line and provides power to its respective cell. At the end of transmitting a packet, the transceiver transmits a code violation, then an anti-code violation to dissipate energy in the line. This is followed by clamping the line for the dead time between packets. N transceivers may be connected (without a cell) to form a repeater. The transceiver module may be used in a network having free topology; that is, an ideal transmission line, with terminators is not needed.

Abstract: A machine tool is suggested, which has a headstock (111) and at least one tool changer (120). The tool changer (120) moves production tools (116) between a magazine position and a working position, at least one fluid power drive cylinder (1) being associated with it as a drive unit (123). On the drive cylinder (1) a locking device (52) is provided, which when a working pressure of the drive piston (6) drops below a predetermined value produces a mechanical locking action of the drive cylinder piston in relation to the housing. To release the mechanical locking, a setting force due to the working pressure must be overcome.

Abstract: An electronic control device for a modular valve range, which has a fluid manifold arrangement fitted with electrically controlled valves. The valves are controlled via at least one control module. Furthermore input and/or output modules and a central electronic control unit are provided, with which the individual modules are connected for control and/or data communication. The control unit is connected with the modules via a bus line system and each module possesses a programmed address decoder, means being provided for sequential configuration of the modules and for the automatic assignment of individual addresses for the individual modules. Accordingly the valve range may be designed and expanded just as may be desired, the connected modules automatically being recognized and provided with addresses.

Abstract: A machine tool which comprises a headstock (111) and at least one tool changer (120). The tool changer (120) shifts the production tools (116) between a magazine position and a working position, a drive unit (123) being provided for it in the form of at least one fluid power drive cylinder (1), wherein a piston is arranged for axial motion and for whose terminal fluid damping a damping device is provided. The drive cylinder (1) provided with a setting device, by means of which the terminal position damping may be switched over between at least two preset values.

Abstract: An ultrasonic position detecting device on a linear drive. The drive element of the linear drive bears a magnet arrangement cooperating with an adjacently placed sensor device which comprises an acoustic wave guide of magnetostrictive material. The magnet arrangement possesses an axially magnetized, annular or disk-like magnet part and, adjacent to the same, a pole part. By selection of the design of the pole part it is possible to affect the course of the magnetic field of the magnet part in order to achieve an optimum state for the sensor device.