Abstract: The invention is directed to a solenoid plunger system for an electro-pneumatic pressure transducer comprising at least partially in a cladding, particularly an iron cladding, a solenoid plunger, a core such as an iron core or a magnetic core, at least a first recess in the solenoid plunger and/or a second recess in the core and an air gap between the cladding and the solenoid plunger and/or the core that is adjustable by means of a relative motion between the solenoid plunger and the core while the solenoid plunger is at least partially movable into or, respectively, out of the second recess in the core and/or the core is at least partially movable into or, respectively, out of the first recess in the solenoid plunger, as well as a first damping element in the first recess and/or a second damping element in the second recess.

Abstract: A valve block for at least two valves fixable in a housing having an electric cabling to electrical terminals for the valves and a pneumatic circuit to pneumatic terminals for the valves. The block has an electrical plug connected to the electrical cabling, which extends to the electrical terminals and has a pneumatic plug connected to the pneumatic circuit, which extends to the pneumatic terminals, and the pneumatic circuit proceeds at least partly in a replaceable insert of the housing that can be selected dependent on the valves and/or their function. The pneumatic plug has at least one pneumatic plug connector selectable dependent on the valves and/or their function.

Abstract: The invention relates to a silencer (1) for noise-laden gas pipes, especially for a suction pipe and/or an exhaust pipe of an internal combustion engine, comprising an outer pipe (2) with an inlet side (3) and an outlet side (4), a plurality of diaphragm rings (9, 9′, 9″, ′″, 9″″) each with an outer surface connected (5) to the inner surface of the outer pipe (2), at least one insert (6) with an outer surface connected (7) to the inner surface of the outer pipe (2) and/or the diaphragm rings (9, 9′, 9″, 9′″, 9″″) and with a plurality of openings (8) which are closed on one side. Said insert (6) forms sub-pipes for the gas flow in the silencer, and the openings (8), which are closed on one side, open into the sub-pipes, the depth thereof being /4 in relation to the wavelength of a frequency to be silenced.

Abstract: A pneumatically regulated classic bearing dampens hydraulically and decouples vibrations of a small amplitude using a freely displaceable element. The bearing can be engaged using a pneumatically activated control chamber, which has a miniature configuration and is located beneath the freely displaceable element, in such a way that the element forms a deformable or displaceable element for the control chamber. In place of a compensation regulation, in the control chamber, a shift to one of three possible, pneumatically determined control states preferably takes place. The states are VENTILATED, CLOSED and PRESSURIZED.

Abstract: A power unit bearing, in particular for motor vehicles, is characterized by mechanically integrally joining a conventional bearing, in particular a hydraulic bearing, to a connectable or disengageable hydraulic switching module for the purpose of matching the power unit characteristics to changing operational conditions of this power unit. The switching module is inserted between a chassis-side base plate of the conventional bearing body and a chassis-side adapter of the power unit bearing.

Abstract: The method for manufacturing a torsion bar shoulder bearing has four method steps: (1) the manufacture of a elastomeric spring as a not fully vulcanized molding for receiving a sleeve-shaped or bolt-shaped inner connecting part in a central bore and an outer sleeve-shaped connecting element; (2) the pretreatment of the surface regions, to be connected to the molding, of the connecting parts by means of an adhesive system; (3) the pushing of the molding onto the inner connecting part and the insertion of the molding thus reinforced into the outer connecting part (or in the opposite sequence), as a result of which the elastomeric molding is clamped under moderate prestress between the two connecting parts, and (4) the concluding full vulcanization of the elastomeric molding in the assembled bearing, using a tempering furnace, at temperatures of below 140 to 150° C.

Abstract: In a sleevelike hydraulically damping rubber bearing with at least two hydraulic working chambers, at least one throttle duct for the damping of vibrations of low amplitudes and one bypass duct for opening the bearing for shock amplitudes are provided. In order to improve the impermeability of the bearing to low disturbing noises, the natural resonance, typically located in the subacoustic range for such bearings, can be shifted into a frequency range around 200 Hz by the insertion of an uncoupling element.

Abstract: The broadband surface-like absorber of the invention is used, in particular, for absorbing troublesome airborne noise in the acoustic frequency range. The broadband surface-like absorber, which operates on the Helmholtz resonator principle, is distinguished by a checkerwork of irregular construction, the webs of which are aligned with their narrow sides perpendicular to the principal surface of the perforated plate and the side edges of which are connected in a sound-pressure-resistant and fluidtight manner on the sound side to the rear side of the perforated plate and, on the rear side, to an extended-area cavity boundary aligned with the same orientation as the perforated plate to form differently tuned chamber resonators.

Abstract: A joint for transmitting shifting forces from a gear-shifting system of a transmission to a transmission drive member includes a pair of joint parts (1, 2) frictionally locked to the transmission drive member and to the gear-shifting system, a coupling (3) mounted between the joint parts (1, 2) and an elastically deforming device. The elastic deforming device is a damper (4) substantially enclosing omnidirectionally the coupling (3) in such manner that when the joint is not transmitting shifting forces, the damper (4) keeps the coupling (3) spaced from the joint parts (1, 2).

Abstract: The screw of the invention is characterized by a threaded shank of which the foot segment is an elastomer and of which the head segment is a dimensionally stable material, preferably a plastic. The screw comprising an elastomer buffer integrated into it in this manner is used to decouple vibrations from two components to be connected without having to resort to any further accessory means. Preferably the screw is used as a locking screw and foremost is applicable to affix a motor vehicle water radiator to a base.

Abstract: The invention relates to a directly hydraulically damping broadband damper designed as a sequence of Helmholtz resonators with elastomer/gas springs to damp pressure pulses in pressurized liquids and in the audible range frequencies, in particular in hydraulic servo systems.

Abstract: An intake silencer is designed as a broadband silencer for noises causes by intake of combustion air into internal combustion engines. To achieve the broadband effect, an axial sequence of resonator chambers with different volumes is formed by partitions which extend transversely to the intake pipe in a resonator that surrounds the intake pipe Each resonator chamber communicates through openings in the wall of the intake pipe with the air sucked through the intake pipe. By matching the open surface area of the openings, the thickness of the wall of the intake pipe in the area of the openings and the volume of the resonator chambers, a continuous broadband silencing may be set even over a wide frequency range, the range of practical interest in the present application extending combustion from to 1 to 10 kHz.

Abstract: A bearing is provided to dampen oscillating/vibrating masses and which comprises a resilient support body (2), an adapter (3) to connect the bearing with the oscillating/vibrating mass and a housing (4) frictionally locking the bearing against a retaining means, the bearing being fitted with a spring system (6) to receive loads substantially applied in the vertical direction.

Abstract: A damper for acoustic waves propagating in particular in a gaseous medium comprises a plurality of vibrational bodies including a plurality of laminas mounted substantially parallel and adjacent to one another. The plurality of laminas are mounted in a housing to form a free space between the upper and/or lower sides of the housing. The laminas vibrate within the free space to dissipate the energy from the acoustic waves.

Abstract: The invention in directed to a bearing to damp oscillatory masses and includes a rubber-elastic support body, a receiving device mounted at and/or in the support device and connecting the bearing to the oscillatory mass, and a housing frictionally bracing the support body against a mount. The support body is fitted in such manner with at least one clearance extending substantially in the axial direction of the support body that when the bearing is loaded statically, the outer walls of the clearance are mutually apart.

Abstract: Apparatus for controlling and adjusting an arbitrary number of adjustment units for a motor vehicle includes an electro-pneumatic bus to which are connected in arbitrary sequence, both electrically and pneumatically, all the pertinent adjusting units. The electro-pneumatic bus is composed of at least one pneumatic adjustment pressure line and of at least one electric control signal line which may contain several conductors. While reference data from a central control electronics are applied through the electric control signal line of the electro-pneumatic bus, the individual adjusting units are connected through associated valves in the pneumatic system to the pneumatic adjustment pressure line of the electro-pneumatic bus. The adjusting units preferably are designed to be modular control loops. As a result the pneumatically driven adjusting members units not only two positions, but also they may be set and controlled in quasi-analogue manner.

Abstract: The invention concerns a dimensionally stable, elastically bending plastic coaxial tube for fluids, consisting of an outer tube and of at least one inner tube mounted in said outer tube in hermetically fluid-tight but separate manner, said inner tube being held in position in essentially coaxial manner relative to the said outer tube by means of spacers between, and integral with, the constituent tubes, each spacer being integral with only one of the constituent tubes and being so configured and arrayed that the outer tube and the inner tube are freely axially displaceable relative to each other at least to some limited extent.The coaxial tube is manufactured in that the inner tube is prefabricated, in particular by extrusion, and in that the outer tube is molded in-situ around the cooled inner tube, in particular by coaxial sheath extrusion.

Abstract: Absorbers for rotating shafts, particularly for universal-joint propeller shafts in motor vehicle construction, are formed with a segmented elastomer ring interconnecting an outer inertia ring and an inner hub ring. The inertia ring is connected to the hub ring with two to six connecting links made of elastic material which, in axial cross-section, primarily have the outer contour of a radially aligned and tangentially constricting "X". Surface complementary buffer webs are placed between the connecting links and form a comparatively close equidistant parting gap in relation to the neighboring connecting links and to the opposing surface of the hub ring.

Abstract: A rubber block is shaped as a segment of a circular washer wherein opposite ends of the segment are surfaces against which torsional forces are applied to the blocks. A plurality of hollow ducts extend through the block and all the ducts are parallel to each other and essentially perpendicular to a main plane of the block. The main plane is perpendicular to the load bearing surfaces. The hollow ducts are intersected by cavities having cross-sectional areas larger than the corresponding cross-sectional areas of the ducts intersecting these cavities.

Abstract: A compliant, acoustically insulating, torsionally elastic shaft coupling includes a shaft part and a driver part formed by support plates. At least one cage is defined by the support plates which house at least one rubber element of corresponding shape. To achieve an especially compliant torsionally spring characteristic line, the rubber element is formed with uniformly spaced cavities having a cross-section larger than that of hollow ducts centrally crossing a series of these cavities and extending at least essentially over the entire height of the rubber element.