Abstract: A modular fluid control system which comprises a plurality of fluid distribution modules each formed of a parallelepiped-shaped module block of similar shape and size and having fluid channels therein is provided. Each module block has at least two porting faces on opposite sides, selected ones of the channels opening on an associated one of the porting faces to form port openings. The module blocks are arranged in an aligned abutting relationship so that selected port openings communicate with each other at abutting porting faces of adjacent module blocks. The modular fluid control system further comprises a frame which surrounds the module blocks and has connector through ports therein aligned with selected ones of the port openings.

Abstract: A dispensing system for petrol pumps, comprising a pump, a dispensing valve in a petrol pump nozzle and an electrically controllable solenoid valve (10), characterized in that the solenoid valve (10) includes a directly acting principal valve (18) and a bypass valve (30) arranged so as to bypass the principal valve (18), and a solenoid drive (34) by which in case of a differential pressure present above the sealing seat (24) of the principal valve (18) at first only the bypass valve (30) is able to be switched to the open position, and only after a pressure compensation has, occurred at the sealing seat (24) of the principal valve (18) by the opening of the bypass valve (30) is the principal valve (18) also able to be switched to the open position.

Abstract: The solenoid valve has two fluidic connections (3, 4), a solenoid (5) and a core (8) guided in a cylinder (7) within the solenoid body (6). The solenoid valve (1) is opened as a result of the movement of the core (8) when the solenoid (5) becomes magnetized. After disconnection of the solenoid (5), it is closed due to the force of a spring (27). Both the core and the closing device of the valve (1) are pressure-relieved, in that the end face of the core (8) has an effective surface which corresponds to an effective surface (18) at the valve body (14). The elastic main seat seal (20) is contained in the housing (2). The taper-ended main valve seat (13) and the compensation diameter (12) are housed in combination within a movable seat bushing (11).

Abstract: A fluid control element comprises a housing, a control chamber (12) which is formed in the housing and into which at least two flow channels (16, 16′) open, at least one sealing seat (14, 14′) located in the control chamber (12) and associated with the flow channels, and a sealing and actuation element (13) arranged in the control chamber (12) and surrounded by elastic material, which element is pivotally mounted on the housing and can be moved between a closed position, in which it covers a sealing seat (14) with one of its ends as well as an open position, in which it opens the sealing seat (14). The sealing and actuation element (13) forms a two-armed lever (23) whose pivot mount (22) is formed by a covering (18) which is made of elastic material, tightly surrounds the lever (23) and is clamped between two flat parts (10, 11) of the housing (10, 11).

Abstract: A miniaturized valve mechanism which has a valve containing a channel with at least one inlet and one outlet opening, as well as a device for closing the channel. In order to provide a valve arrangement which can be produced in the smallest possible size, the valve is controlled by a very small linear motor, the driver of which moves the device for closing and opening the channel by the application of a control voltage to a piezoelectric tube.

Abstract: A module comprises a pilot valve and four switching valves, in particular for driving actuators, the pilot valve being a 4/3-way valve.

Abstract: A fluid control element comprises a housing in which two control chambers are formed, which are isolated from each other and comprise a working port each as well as two pressure ports. Two of these ports are provided with a sealing seat each. The fluid control element further comprises a switching element movably mounted in said housing and comprising a sealing part in each control chamber. The sealing part cooperates with the sealing seats such that these are opened or closed. The fluid control element further comprises an actuating member for the switching element, the actuating member being able to bring the switching element into three positions.

Abstract: An electrofluidic modular system (1) is made up of modules which are secured to a bar (5) and may be mounted one after the other, in particular fluidic modules (9) having collecting channels (10, 11, 12) for actuator ports (26, 27, 28), electric modules (7) including bus terminals (8) and electric terminals (44) for actuators (15), and function modules (30). Two interface modules (18, 19) each have on one connecting side (23) a first connecting configuration with electric (8) and fluidic (10, 11, 12) terminals and with a contour (24) which are adapted to the modules (7, 9) of the modular system (1), and have on the opposite connecting side (22) a second connecting configuration which is different from the first and has electric (25) terminals and a contour (20) which are adapted to modules (2, 3) of a modular system of a different provider secured to the same bar (5).

Abstract: A miniaturized solenoid valve is provided which is suitable for integration in an electric or electronic control circuit by it being built up on a printed circuit board. The valve has a narrow elongated housing (10) with a fluidic space (26) at one longitudinal end, and a solenoid drive (12, 14) at the opposite longitudinal end. Soldering pins protrude from the base surface of the housing, which are electrically connected to the solenoid (12) of the solenoid drive. The fluidic connections are easily accessible from the top side of the housing (10).

Abstract: A direct-acting pressure-balanced linear valve (1) is provided with a hollow, displaceable sealing tube (19) which has a valve seat (20) and a valve body (49) having a valve seat seal (21). A drive unit (7) is arranged outside the media flow on one side and next to the sealing tube (19). A toothed segment (15) at an extension lever (14) of the drive unit (7) engages with a toothed segment (18) at the sealing tube (19). The drive unit (7) may be detached from the fluidic housing (2) without interruption of the media flow.

Abstract: A miniaturized valve mechanism which has a valve containing a channel with at least one inlet and one outlet opening, as well as a device for closing the channel. In order to provide a valve arrangement which can be produced in the smallest possible size, the valve is controlled by a very small linear motor, the driver of which moves the device for closing and opening the channel by the application of a control voltage to a piezoelectric tube.

Abstract: A gas flow valve comprises at least one gas inlet, at least one gas outlet, a flow path between said gas inlet and said gas outlet, a magnetic fluid in the valve arranged in the flow path and means for application of a magnetic field to the magnetic fluid. The magnetic fluid solidifies upon application of the magnetic field, interrupts the flow path from at least one gas inlet to at least one gas outlet gas-tight and permits gas flow when no magnetic field is applied.

Abstract: A valve combination is proposed for use in plumbing applications which is suitable as a replacement for conventional solenoid valves with a plunger armature. The valve combination consists of a main valve (10), embodied as a diaphragm valve, a servo valve (14) integrated into a cable connector head (12), and a fluidic coupling (16) between the cable connector head (12) and the main valve (10). The cable connector head (12) is provided with an electrical quick connector (18).

Abstract: A modular valve structure comprising a fluid conducting valve part and a drive part is characterized in that the fluid conducting valve part comprises a main body (10) with an inlet (10a) and an outlet (10b) and furthermore a uniform connection interface (12), at which both an inlet duct (10a') extending from the inlet (10a) and also an outlet duct (10b') leading to the outlet (10b) and separated from the inlet (10a) by a rib (24) terminate, and in that one of several valve components (36, 50, 709 76, 76'), which are different but however possess a corresponding, uniformly designed connection side (120), may be freely selectively connected with the connection interface (12).

Abstract: A modular electric arrangement for central power supply and control of valves in a valve block including at least one base module having a housing with tow opposed open ends, at least one connection module, and at least one termination module; the base, connection and termination modules having an identical cross-sectional configuration and being releasably connected in-line; the base module accommodating a circuit board and having a side wall with at least one opening therein for access to a connector on the circuit board; the connection module providing a central electric power supply for other modules in the arrangement; and the termination module closing an open end of an adjacent module in the arrangement.

Abstract: A valve having a housing (1) and at least one sealing seat (2, 3) formed therein and one piezoelectric lamina (6) self-supportingly mounted at its first end on the housing (1) and with its second end closing or opening the sealing seat (2, 3) depending on the control voltage supplied to the lamina (6). The first end of the lamina (6) is embedded in a sealing compound (7) which, in turn is at least partially incorporated in the housing (1). The lamina (6) is thereby rigidly connected to the housing (1). While the first end of the lamina (6) is being sealed, it is fixedly held in relation to the housing (1). Consequently, the lamina (6) cannot be displaced even during a long period of operation. Subsequent adjustment is therefore unnecessary.

Abstract: A modular valve for fluids comprises a valve housing (16) having a plurality of fluid ports, a spring-loaded switching rocker (18) which is adapted to be inserted into the valve housing (16), and an electromagnetic valve drive (20). Between the valve housing (16) and the electromagnetic valve drive (20) a generally magnetically non-conductive plate (30) is inserted having locally limited magnetically conductive regions (32, 34) for the electromagnetic valve drive (20) to act through on one of two limbs of the switching rocker (18), whereas the other limb is not able to be acted upon magnetically. Valve members provided at the opposite ends of the switching rocker (18) and poles (44, 46, 48) of the electromagnetic valve drive (20) are arranged symmetrically with respect to a plane containing the rocker axis (50) and perpendicular to the intermediate plate (30).

Abstract: For the production of a metallic valve member a tube section (10) is introduced into a pressing mold (14) and deformed by means of a stamp (15). The ends of the tube section remain as tubular port connections. The center section intermediate these ends is thrust inwardly on the side of the tube section, which corresponds to the bottom of the valve member, whereas on the opposite side of the tube section a flat opposite surface (14a) of the pressing mold forms a flat in the wall of the tube section so that opposite to the flat two fluid guide surfaces are formed, which starting from the axial direction as defined by the port connections are directed axially inward and simultaneously toward the flat and merge together in a common rib opposite the flat.

Abstract: A fluid control element has a housing (10), a fluid control space (12) formed in the housing and into which at least two flow ducts (16) open, at least one sealing seat (14) arranged in the fluid control space (12) and associated with one of the flow ducts and a movable lug (30) extending into the fluid control space (12), the lug (30) being encased in an elastic material and being able to cover the sealing seat and constituting one arm of a reed. Furthermore, two rotary joints are provided for the reed which are formed by a tightly surrounding casing which is fashioned of the elastic material and is held in the housing. The second arm of the reed extends out from the control space (12) as an actuating arm (22). The two rotary joints arranged opposite to one another transversely in relation to a longitudinal direction of the lug (30) in opposite housing walls with the result that the control element may be moved independently from the pressure in the fluid control space (12).

Abstract: The solenoid valve, which can be used as a single valve to control small flow quantities, or also as a pilot valve for valves controlling larger flow quantities of a medium, has a narrow, oblong cuboid valve housing (10), in which two seal seats (38, 40) and an oblong chamber (26) are formed. In this chamber (26) a bar-shaped armature (28) is movably accommodated and pivotally located on a blunt edge (30). The armature (28) has two recesses (42, 44) each opposite the seal seats (38, 40). A seal (46, 48) is located in each recess. The armature (28) is retained in its functional position by means of a return spring (50) stabilised in position on the floor of the chamber (26), the spring engaging in one recess (44) of the armature (28).