Woco Franz-josef Wolf & Co. Gmbh

Other

Bayerische Motoren Werke Aktiengesellschaft

Volkswagen Ag

Mercedes-benz Aktiengesellschaft

Alcatel Sel Aktiengesellschaft

Franz Josef Wolf

Hubert Pletsch

Anton Wolf

Hansjorg Lauer

Rudolf Klaschka

Martin Mohr

Udo Gartner

Peter Kaminski

Stefan Nix

Peter Koczar

Josef Hohmann

Udo G&auml;rtner

Martin Lindmayer

Dieter Feichtiger

Dieter Heinle

Axel Temmesfeld

Otto Weber

Kurt Fiedler

Waldemar Hermann

Manfred Schatz

Hans J Kunze

Walter Decker

Andrew Ogrissek

Frank Demling

Joachim Schneider

Nicole Schrieber

Manfred Thesenvitz

Volkamr Keck

Eric Portal

Alexander Korn

Dieter Baum

Christian Fiedler

Waldemar Herrmann

Marc Ritzenthaler

Uwe Schleinitz

Laszlo Bezi

Ferenc Schmidt

Alfred Kluh

The invention relates to a silencer ( ) for noise-laden gas pipes, especially for a suction pipe and/or an exhaust pipe of an internal combustion engine, comprising an outer pipe ( ) with an inlet side ( ) and an outlet side ( ), a plurality of diaphragm rings ( ) each with an outer surface connected ( ) to the inner surface of the outer pipe ( ), at least one insert ( ) with an outer surface connected ( ) to the inner surface of the outer pipe ( ) and/or the diaphragm rings ( ) and with a plurality of openings ( ) which are closed on one side. Said insert ( ) forms sub-pipes for the gas flow in the silencer, and the openings ( ), 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. At least one perforated wall ( ), extends between at least two diaphragm rings ( ) whereby an outer surface is connected ( ) to at least one inner surface of the two diaphragm rings ( , wherein at least one resonance cell is fixed between the two diaphragm rings ( ) of the perforated wall ( ) and the outer pipe ( ).

Silencer or noise damper

The invention relates to a fastening support of which a solid spring, in particular an elastomer spring, is hooked into an annular flange and rests on the edge surfaces of this flange, whereas at least one, mostly two end faces of the spring will be connected to the second connection fitting(s). In general these connection fitting act as load fittingss, whereas the hookup flange serves as a support fitting. The invention improves the service life of these economical fastening supports by means of a configuration such that the radial force-transmitting surfaces, that is those surfaces through which the load and support force are introduced into the spring, are configured in extensively congruent manner coaxially and in coaxial projection.

Fastening support

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.

Bearing for a power unit

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&deg; C.

Torsion bar shoulder bearing

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.

Rubber radial bearing

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.

Sound absorber for sound waves

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).

Joint floor transmitting shifting forces from a gear shifting system of

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.

Screw with elastomer component to provide vibrational decoupling

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.

Pulse damper

Intake silencer for motor vehicle

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.

Bearing for damping oscillating/vibrating masses

A flexible shaft coupling in which the torque transmission takes place by way of elastomer shackles between the two shafts to be coupled. The coupling components in the form of separate anchoring plates are all arranged in a single radial plane of the coupling, whereas the radially outward-pointing elastomer shackles are mounted to enclose the coupling. For predetermined torques to be transmitted, this design allows minimal outside dimensions of the flexible shaft coupling, as a result of which these couplings are especially applicable to wheel driveshafts of motor vehicles.

Flexible shaft-coupling

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.

Transversely compliant body spring for a hydraulic bearing

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.

Electro-pneumatic bus

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.

Fluid containing coaxial tube for control systems

Growing community of inventors

Bad Soden-Salmunster, Germany

Franz Josef Wolf