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: The fluid power cylinder possesses a housing, wherein a piston space is defined to accommodate a piston. In or on the housing a pressurized fluid receiver is arranged which possesses at least one receiver chamber connected with the piston space and which is supplied from a pressurized fluid source. Such a fluid power cylinder is characterized by reliable operation and good response behavior if it is run at a considerable distance from the pressurized fluid source.

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 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 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 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 fluid power cylinder whose piston rod has on its outer periphery at least one axially extending surface section having the form of a flat. Such surface section has a longitudinal groove, which contains a magnetic strip able to be scanned by a sensor device on the housing. The magnetic strip has alternatingly arranged poles areas in succession, which can be scanned without contact by the sensor device. The magnetic strip is covered by a cover band fixed on the piston rod and consisting of a material allowing the passage of a magnetic field, whose external surface facing away from the magnetic strip constitutes at least a part of the piston rod's surface section having the form of a flat.

Abstract: A rodless cylinder which is capable of minimizing the leak of pressure fluid from a cylinder tube. A slit of an almost trapezoidal section is formed in the cylinder tube in a longitudinal direction thereof, a trapezoidal belt which is fixed to the ends of the cylinder tube at the both ends thereof is fitted into the slit, the trapezoidal belt slidably passes through a piston which is fitted into the cylinder tube, and a piston cup is fitted on the outer periphery of the piston. In addition, ribs are provided between an outer lip of the piston cup which is in abutment against the vicinity of the both sides of the bottom of the trapezoidal belt and an inner lip of the piston cup, and the both side walls of tile slit of the almost trapezoidal section are formed into convexly curved configurations in such a manner that the both side walls of the slit can be connected to the inner peripheral surface of the cylinder tube forming a smooth curve.

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: 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.

Abstract: A valve range is suggested suitable for use in connection with the control of fluid operated equipment. It possesses a fluid manifold, which is able to be fitted with pneumatic valves, which are operated via a signal manifold electrically. The valve range is so designed that it is suitable for the combined operation or control both of pneumatic valves and also of hydraulic valves. For the control of hydraulic valves it is provided with at least one control connection, from which the respective control signals may be taken. It is in this manner that, starting with a central valve range both pneumatic and also hydraulic valves may be operated and controlled in a comparatively simple fashion.

Abstract: A spool valve possesses a longitudinally divided valve housing, in the case of which housing parts are assembled with longitudinal sides fitted together. In the wall of the valve housing valve ducts are provided. In order to enable simplification of the manufacture of such valve housings at least part of the length of a valve duct extends in the parting interface of the valve housing. In this respect the wall of the valve duct is made up of complementary peripheral wall portion, which are provided at the housing parts adjacent to each other in the parting interface.

Abstract: A choke valve, which comprises a housing wherein a choke duct extends. Two connection ports of the choke duct render possible the connection of means for the supply and removal of driving fluid. A choke member cooperates with the choke duct and is able to be set for the regulation of the flow rate. One of the connection ports is provided on the choke member, the adjoining portion of the choke duct extending through the choke member. It is in this manner that one connection side of the valve is also the adjustment side of the choke valve, something which reduces the amount of space for the fitting thereof.

Abstract: A linear-drive device with a housing (1) in which a drive element (3) is fitted in such a way that longitudinal motion is permitted. On the outside of the housing (1) is a longitudinal guide element (16) on which a guide rail (18) is mounted, also in such a way that longitudinal motion is permitted. A lug (14) projecting through a longitudinal slot (13) in the housing (1) connects the drive element (3) with the guide rail (18). In order to prevent the lug (14) being damaged if the drive element (3) strikes one of the end stops, a buffer device (30) acting in the direction of motion is located in the connection between the guide rail (18) and the drive element (3).

Abstract: This is an electro-pneumatic control device which includes a valve station (2) designed similar to a subassembly. The valve station (2) is provided with a fluid conductor (4) which is equipped with a plurality of valves (12) and a central electronic control unit which is formed by a control block (19). The control block (19) is a direct component of the valve station (2),so that a external central control unit is eliminated.

Abstract: An electropneumatic control device having a plurality of valves, each valve being associated with at least one electrically actuatable valve drive. Each valve drive has integrated therein its own bus communication unit and is coupled to a bus line for communication with a central control unit. Actuating control signals are supplied from the central control unit for controlling each of the plurality of valves integrated therein. The valve drives may also include electrical contacts for piercing an insulating sheath of the bus line to make electrical connection with control wires within the bus line. The electropneumatic control device described above reduces design complexity.