Abstract: A fold bellows for rotating drive joints is proposed which, although it is equipped with a plurality of folds along its length, admits large bend angles without the flanks of its folds having mutual contract for a physical bellows dimensioning which corresponds approximately to a dimensioning of known fold bellows. For this purpose the fold bellows is equipped with a joint side fold of larger diameter, with a shaft side fold of smaller diameter and with at least one further fold which is provided at an axial interval from the two other folds and is smaller than the shaft side fold in diameter.

Abstract: A brake unit having a hydraulic brake booster and twin master cylinders in a common housing. The brake booster comprises a drive cylinder between the master cylinders which can be subjected to the outlet pressure of a brake valve of the brake booster which supplies an outlet pressure proportional to the pedal travel. A compensating cylinder, which jointly executes the strokes of the drive-cylinder piston and can likewise be subjected to the outlet pressure of the brake valve transmits the actuating forces generated by the drive cylinder to the pistons of the master cylinders via a rocker articulated pivotably on the compensating piston. The effective piston surface of the compensating cylinder is somewhat larger than that of the drive piston.

Abstract: A cover strip to cover over a lower edge of a bonded windscreen oriented in the transverse direction of the vehicle, which is located in the air suction region of a blower, is anchored to the windscreen so as to maintain an interval whereby a duct is formed through which a stream of water being discharged along the windscreen can flow into a water catching tank located beneath the engine hood.

Abstract: The invention relates to an omnibus track guidable vehicle for special roads which vehicle can also travel with free manual steering on normal roads. To make the trailing axle roll along the special road, which defines the track, with correct tracking and without contact, the trailing vehicle axle is provided with an elastokinematic self-steering system. Articulation of the axle body of this vehicle axle in the transverse direction is in fact made so that the axle body is transversely slidable out of the central position by approximately .+-.0.8 to 1.2% of the vehicle width with increasing force, limited as a function of the transverse force.

Abstract: A stabilizer, formed by a torsion bar and stabilizer bar member's arranged at the end of the torsion bar, is designed in such a way that it is possible to dispense with the use of appropriate connection linkages for the articulation of the bar members on a vehicle part, which can usually only be accomplished indirectly. For this purpose, the stabilizer bar members are in each case equipped with a member end piece which is bent off elastically compliantly and can be fitted moveably on the corresponding vehicle part.

Abstract: A device for trapping fuel vapors during the refuelling of a fuel tank having a vapor control valve and which during refuelling, is moved into an open position provided outside the tank filler pipe safety valve which closes under the influence of gravity due to certain inclined positions of the fuel tank is connected upstream of the control valve, so that no fuel can escape through the vapor vent line in the case of a crash, even if the control valve no longer closes.

Abstract: An anti-theft device for a car radio having a theft module, which renders the car radio inoperative when the radio is slid out of its installation recess in the vehicle, is provided by a joint housing for a power supply and anti-theft protection plug connection elements, as well as for a change-over switch controlling the theft module. The housing is fastened via the plug connection elements at the rear wall of the car radio such that the change-over switch is inevitably actuated by the frame of the installation recess during the sliding-out of the radio.

Abstract: A filter arrangement having an upright filter with a filter housing and a filter insert for cleaning lubricating oil of an internal combustion engine, in which the filter is fastened at a filter socket located in the lower part in the installed position of the filter; a first channel for feeding dirty oil, a second channel for discharging clean oil and a third channel for discharging oil from the interior of the filter are provided in the filter socket as well as a passage from the interior of the filter housing to the third channel which is necessarily opened during a change of the filter insert. In order to achieve a clear separation of the clean oil from the oil flowing off out of the filter during a change of the filter, the passage is arranged in a collar of the filter socket closely surrounding the lower part of the filter housing and is covered off by the filter housing in the installed position thereof.

Abstract: In a pressure modulator for an anti-lock vehicle wheel braking system, responsive to a change of volume of a modulation chamber, caused by a flange of a first central piston element cooperating with a piston step of a second piston element. The piston elements are located in a bore step of the pressure modulator housing which has a diameter which is larger than that of the modulation chamber. The two piston elements each have a displaceable piston flange for forming two sides of a control-pressure space, subject to outlet pressure of an auxiliary-pressure source, which causes the piston elements to be forces, counter to a pre-stress of a modulator spring engaging thereon, into a position which corresponds to a minimum volume of the modulation chamber and when subject to a valve-controlled relief of pressure in the control-pressure space, the piston elements assume the position corresponding to a maximum volume of the modulation chamber.

Abstract: A combustion chamber arrangement and a method for the same, having a piston with a combustion trough adjacent an end thereof and a fuel injection nozzle for injecting fuel through nozzle holes against boundary walls of the combustion trough. The number of nozzle holes is based on the specific characteristics of the combustion trough depth, diameter and a dimensionless constant representation of the spin number of the combustion air entering the combustion trough.

Abstract: A headlamp for motor vehicles exhibits a diffuser disc which serves to mask a light exit aperture of a reflector housing and which is retained on the latter by a fastening frame and which is braced toward the depth of the reflector housing only by the reflector housing. The reflector housing yields at least in a bracing region in case of a collision and clears the path for a yielding plunging of the diffuser disc into a reflector housing cavity without the fastening frame being prejudicially deformed.

Abstract: A system for controlling at least one variable influencing the drive torque of an internal combustion engine of a motor vehicle, with an electronic throttle control, an electronic ignition timing control and a control device which becomes active when there is a tendency to spin of at least one driven wheel. The instantaneous engine speed is stored and the drive torque reduced to a certain value, assigned to the engine speed, and subsequently increased again, at a rate of rise dependent on the engine speed, when the tendency of spin of the driven wheel subsides. Consequently, major excess torque are avoided and greater traction and lateral control force is achieved.

Abstract: An antiremoval device for a locking mechanism for a steering column lock for motor vehicles is disclosed. A fastening member extending through releasably connected housing parts, which prevent tampering with the locking parts, engages additionally into a displaceable catch of the locking parts when the catch is in a locking position with the steering column to thereby prevent the fastening member from being moved to a position releasing the housing parts.

Abstract: In the case of a shearing element that can be used as an engine mounting in a motor vehicle, an elastic damping body that is developed in the way of a rubber--metal mounting and a shearing unit are provided in a mechanical parallel connection for supporting the engine at the body. It is their purpose to avoid, in the natural-vibration range of the mounting--mass system, an excessive increase of the amplitudes in the case of a resonance.

Abstract: An arrangement for removing soot particles from the exhaust stream of a diesel internal combustion engine in such a manner that the soot particles are caught between conductor elements disposed at different potential, produce a short circuit and thereby burn off. In order to be able to realize a purification of the exhaust gas stream without a significant increase of the exhaust gas counterpressure, a centrifugal separator is connected to the exhaust gas line, which passes over into a soot particle collecting chamber constructed axially symmetrical to the longitudinal axis thereof; a predetermined number of electrodes is arranged in turn in the soot particle collecting chamber at a slight distance to the casing interior surface whereby the electrodes among one another or the electrodes and the soot particle collecting chamber itself are at a different potential.

Abstract: A repair method for repairing stone or gravel impact damages on windshields of mult-layer safety glass, in which the damaged place is covered with a transparent suction cup, a vacuum is produced underneath the suction cup and a liquid-clear hardening synthetic resinous material is applied onto the damaged place by means of an injection needle pierced through the suction cup. Compared to known repair methods, the method of this invention requires a lesser apparatus expenditure and can be carried out in a more simple manner.

Abstract: In a system for controlling the propulsion on motor vehicles, by a reduction of the drive torque by an intervention in ignition, carburator or fuel injection and/or brakes, includes a first device which reduces the drive torque when the maximum adhesion coefficient is exceeded, and a second device which reduces the drive torque to a value associated with the measured maximum value of the vehicle acceleration when the monitored wheel variable exceeds the threshold value, as a result of which too great an excess of torque is prevented and sufficient traction and cornering stability are retained without unnecessarily slowing down a propulsion of the motor vehicle.

Abstract: A process and processor for an air conditioning system in which, in addition to the values recorded for the interior temperature, the outside air temperature, the temperature after the evaporator and the ventilation temperature after the heating element, the value recorded by a further sensor of the relative humidity of the outside air for controlling the relative humidity of the interior air are supplied to an evaluation unit and correspondingly further processed.

Abstract: A propulsion control device for a motor vehicle which has a permanently balanced all-wheel drive, wherein the drive slip thresholds at which the control responds in the sense of a braking action, is increased as a function of the velocity and decreased as a function of the transverse acceleration. The acceleration thresholds, at which the control responds, are lowered as a function of the transverse acceleration. In the case of travel in a straight line, the lowest of the wheel peripheral velocities is taken as the reference velocity relative to which the drive slip thresholds are fixed. In the case of travel in a curve, the average of the wheel peripheral velocities of the left-hand side and right-hand side vehicle wheels is taken as the reference velocity for the vehicle wheels on the left-hand side and the right-hand side of the vehicle, respectively. From the time t.sub.