Abstract: A fluid operated position regulator comprises a servo means, arranged in a regulator housing and by which a supply connection, a venting connection and a power connection can be placed in circuit in an adjustable manner. To predetermine or set its position the servo means possesses two mutually oppositely orientated fluid actuating faces of equal size, which respectively delimit a control chamber. The two control chambers are connected by way of an intermediately placed choke means with a common control pressure connection. Downstream from the two choke means each control chamber is connected with a venting connection. A control valve means can control the two venting connections and in particular simultaneously close them.

Abstract: A fluid operated position regulator comprises a servo means, arranged in a regulator housing and by which a supply connection, a venting connection and a power connection can be placed in circuit in an adjustable manner. To predetermine or set its position the servo means possesses two mutually oppositely orientated fluid actuating faces of equal size, which respectively delimit a control chamber. The two control chambers are connected by way of an intermediately placed choke means with a common control pressure connection. Downstream from the two choke means each control chamber is connected with a venting connection. A control valve means can control the two venting connections and in particular simultaneously close them.

Abstract: A flexural actuator is fitted with an actuator means, the flexural actuator being fitted at its functional section with a sensor means for determination of the longitudinal stretch. This sensor means is placed at a position, and/or is placed in the longitudinal direction symmetrically on either side of such position, at which there is a constant longitudinal stretch independent from the setting force when the functional section is thrusting against a resistance.

Abstract: A method for the manufacture of a valve having at least one valve opening surrounded by at least one valve seat and an elongated valve member able to be brought into different positions by pivoting. In order to adjust the switching stroke of the valve member the valve member is, for instance using a laser, locally and briefly heated until superficial plastification occurs so that in the direction of the pivoting movement performed in operation it experiences a permanent flexural deformation.

Abstract: A piezoelectric valve whose housing defines a valve chamber wherein at least one piezoelectric flexural transducer is located. The piezoelectric flexural transducer possesses a contact face, which faces a first outer wall of the valve housing. This first outer wall is in the form of a wiring support which possesses a support body consisting of plastic material, which at the outer side opposite to the valve chamber bears a wiring arrangement. The wiring arrangement is in electrical contact by way of a via extending through a cutout in the support body with the piezoelectric flexural transducer, since the via consists of an electrically conductive elastic plug, against which the at least one contact face is thrust at the inner face of the support body.

Abstract: A flexural actuator is fitted with an actuator means, the flexural actuator being fitted at its functional section with a sensor means for determination of the longitudinal stretch. This sensor means is placed at a position, and/or is placed in the longitudinal direction symmetrically on either side of such position, at which there is a constant longitudinal stretch independent from the setting force when the functional section is thrusting against a resistance.

Abstract: A method for the manufacture of a valve having at least one valve opening surrounded by at least one valve seat and an elongated valve member able to be brought into different positions by pivoting. In order to adjust the switching stroke of the valve member the valve member is, for instance using a laser, locally and briefly heated until superficial plastification occurs so that in the direction of the pivoting movement performed in operation it experiences a permanent flexural deformation.

Abstract: A piezoelectric flexural transducer having an elongated support body (2) which on at least one longitudinal side is provided with a piezoelectric unit (5). The piezoelectric unit (5) has one or more piezoelectric material layers (12) and electrodes (13a and 13b) associated with same. Furthermore, the piezoelectric unit (5) includes an electrically insulating coating surrounding the body (8) right round it, the section (26) of the coatings lying between the piezoelectric body (8) and the support body (2) being provided with one or more electrically conductive vias (27a and 27b). The latter provide the necessary electrical connection between the electrodes (13a and 13b) and the support body (2).

Abstract: A piezoelectric flexural transducer having an elongated support body (2), that on at least one longitudinal side is provided with a piezoelectric multi-layer body (6). In the interior of the support body (2) and/or between the support body (2) and the piezoelectric multi-layer body (6) and/or between neighboring piezoelectric material layers of the piezoelectric multi-layer body (6) at least one component (24 and 32) of an electronic (23) and/or sensor (33) system is accommodated employed for the operation of the piezoelectric flexural transducer.

Abstract: A piezoelectric valve whose housing defines a valve chamber wherein at least one piezoelectric flexural transducer is located. The piezoelectric flexural transducer possesses a contact face, which faces a first outer wall of the valve housing. This first outer wall is in the form of a wiring support which possesses a support body consisting of plastic material, which at the outer side opposite to the valve chamber bears a wiring arrangement. The wiring arrangement is in electrical contact by way of a via extending through a cutout in the support body with the piezoelectric flexural transducer, since the via consists of an electrically conductive elastic plug, against which the at least one contact face is thrust at the inner face of the support body.

Abstract: A piezoelectric flexural transducer having an elongated support body (2) which on at least one longitudinal side is provided with a piezoelectric unit (5). The piezoelectric unit (5) has one or more piezoelectric material layers (12) and electrodes (13a and 13b) associated with same. Furthermore, the piezoelectric unit (5) includes an electrically insulating coating surrounding the body (8) right round it, the section (26) of the coatings lying between the piezoelectric body (8) and the support body (2) being provided with one or more electrically conductive vias (27a and 27b). The latter provide the necessary electrical connection between the electrodes (13a and 13b) and the support body (2).

Abstract: A piezoelectric flexural transducer having an elongated support body (2), that on at least one longitudinal side is provided with a piezoelectric multi-layer body (6). In the interior of the support body (2) and/or between the support body (2) and the piezoelectric multi-layer body (6) and/or between neighboring piezoelectric material layers of the piezoelectric multi-layer body (6) at least one component (24 and 32) of an electronic (23) and/or sensor (33) system is accommodated employed for the operation of the piezoelectric flexural transducer.

Abstract: A piezo valve having a flexural transducer unit which includes two flexural transducers adapted to be deflected in opposite directions. The flexural transducers are fixedly joined together at one terminal part of the flexural transducer unit with the formation of a common bearing section. The flexural transducer unit is pivotally mounted in relation to the housing. At least one flexural transducer serves for the control of a valve opening associated with it, the other flexural transducer being able to be biased by the application of a drive voltage toward a support face arranged in a deflection path in order to for instance to increase the displacement path of the other flexural transducer.

Abstract: A valve means which comprises a control chamber in a valve housing and into which several fluid duct open. In the control chamber there is at least one pivoting control rocker member serving for the control of at least one of the fluid duct openings and able to be moved between two terminal positions, one pivotal position of such control rocker member being influenced by an electrically activated flexible element. The flexible element may act within the control chamber on an actuating part of the control rocker member. The latter is biased by spring means into a first terminal position, the flexible element engaging the actuating portion of the control rocker member in the electrically non-excited state mechanically free of stress and without any spring bias.

Abstract: An electromagnetic drive device is proposed comprising an electromagnet (21) having a magnetizable core (22) with a plurality of limbs (23 and 24) and an energizable winding arrangement (35) surrounding at least one limb (23 and 24) of the core (22). Furthermore there is a magnetizable magnet armature (15) able to be moved in relation to the core ((22) by varying the winding arrangement current. The (22) core has at least one U arrangement and is formed essentially by a plurality of sheet metal elements (30) resting against each other and extending athwart the direction of the parallel limbs (23 and 24), the parallel limbs being respectively surrounded by one winding (33 and 34) of the winding arrangement (35).

Abstract: The invention provides a driving device comprising a tubular housing (2) and a moving unit (4) which is positioned on the housing (2) in such a way that it can be moved lengthwise therein. Said moving unit (4) comprises an internal part which is located in the housing (2) and an external part which is located outside the housing (2), both parts being magnetically coupled. The magnetic coupling creates a coupling device which produces at least one closed magnetic circuit (13) via the outer part (6) and which fully traverses the inner part (5) and the housing (2).

Abstract: A piezo valve having a flexural transducer unit which includes two flexural transducers adapted to be deflected in opposite directions. The flexural transducers are fixedly joined together at one terminal part of the flexural transducer unit with the formation of a common bearing section. The flexural transducer unit is pivotally mounted in relation to the housing. At least one flexural transducer serves for the control of a valve opening associated with it, the other flexural transducer being able to be biased by the application of a drive voltage toward a support face arranged in a deflection path in order to for instance to increase the displacement path of the other flexural transducer.

Abstract: A valve means which comprises a control chamber in a valve housing and into which several fluid duct open. In the control chamber there is at least one pivoting control rocker member serving for the control of at least one of the fluid duct openings and able to be moved between two terminal positions, one pivotal position of such control rocker member being influenced by an electrically activated flexible element. The flexible element may act within the control chamber on an actuating part of the control rocker member. The latter is biased by spring means into a first terminal position, the flexible element engaging the actuating portion of the control rocker member in the electrically non-excited state mechanically free of stress and without any spring bias.