Abstract: Faller bar for chain drafting systems The claim is for a faller bar (1) with a support bar (2) and a casing (4) surrounding the same, and also for a number of pins (3) arranged adjacent to each other, wherein the support bar (2) has a diameter (d) of 5.9 mm to 6.1 mm and the casing (4) has a thin-walled zone (4a) having a wall thickness (b) of 1.4 mm to 1.8 mm.

Abstract: A piezoelectric actuator includes a piezoelectric bending transducer, the first end of the bending transducer may be pivoted, while its second end, which is opposite to the first end, may be movably supported in a longitudinal transducer direction. Given a simultaneously large deflection path or bending lift, the actuator may attain a high restoring or working force. Thus, in the case of a valve piezoelectrically actuated by such an actuator, the sealing effect of a valve channel, which is closed or to be closed, may be significantly increased.

Abstract: A piezoelectric actuator includes a piezoelectric bending transducer, the first end of the bending transducer may be pivoted, while its second end, which is opposite to the first end, may be movably supported in a longitudinal transducer direction. Given a simultaneously large deflection path or bending lift, the actuator may attain a high restoring or working force. Thus, in the case of a valve piezoelectrically actuated by such an actuator, the sealing effect of a valve channel, which is closed or to be closed, may be significantly increased.