Abstract: A drive arrangement for a motor vehicle having a four-wheel drive establishable by connecting one wheel axle with another drivable wheel axle, wherein one wheel axle can be driven via an auxiliary drive shaft and a gear shift transmission, arranged in parallel with respect to its input shaft from an engine.This auxiliary drive shaft can be used for forming at least one gear transmission when the input shaft and the auxiliary drive shaft are brought into direct driving connection with one another by means of an auxiliary transmission. At least one of these two shafts can be clutched into driving connection with the auxiliary transmission. The clutch can be engaged only when the torque transmission in the gear shift transmission is interrupted or an interaxle differential is in effect that is connected between the two wheel axles.

Abstract: A central locking system for motor vehicles is provided in which, in addition to the key-actuated central function for the locking or unlocking of door locks, an automatic central locking takes place when the vehicle engine is started and on. However, the automatic central locking of the vehicle can be overridden when the engine is running so that entry and exit are possible. After the entry or exit while the engine is running, the doors of the vehicle are again automatically centrally locked.

Abstract: The invention concerns a device for changing the flow direction of an airflow entering the suction-side opening of a compressor of an exhaust gas turbo-charger of an internal combustion engine. The airflow is deflected into the rotational direction of the compressor impeller by means of a guide device located in the induction duct upstream of the inlet opening. In order to achieve required flow through a mechanically simply producible guide device, a bypass duct which has an annular space branches off from the induction duct upstream of the compressor to the guide device. The annular space surrounds the induction duct in the region of the suction-side opening of the compressor. Nozzle-shaped openings are provided in a common partition between the annular space and the induction duct and a shut-off valve is located in the induction duct between these openings and the point where the bypass duct branches off.

Abstract: A control arrangement for a fuel-injected supercharged internal engine and, in particular, a diesel engine, with the control arrangement including a fuel injection pump. A control unit is provided for adjusting a fuel output of the fuel injection pump in dependence upon the combustion air delivered to the supercharger. To optimize the measurement of combustion air, the control unit is adapted to be influenced by instantaneous operating parameters such as the rotational speed of the internal combustion engine and rotational speed of the supercharger.

Abstract: This invention relates to a ball-type chucking mandrel having several chucking balls that are arranged in an evenly distributed manner in the chucking area. These chucking balls are held in a uniform axial position by means of a contact shoulder. In addition, the chucking balls rest against a chucking body that can be shifted with respect to the contact body axially, but is secured with respect to rotation, said chucking body having a uniform cone surface or conical surface. In the case of an axial shifting of the chucking body, the chucking balls move radially to the outside or the inside. In order to also be able to exercise certain torques on the chucked body, the chucking balls are rigidly connected with one other in pairs so that the chucking balls cannot roll off at the chucked workpiece. The balls are connected with one another in pairs by means of pins, and these types of ball pairs are connected with one another to form a uniform set by means of a wire loop.

Abstract: A convertible top for vehicles with a frame and a textile cover, in which two columns stretching the cover material are pivotal about an axis extending transversely to the vehicle and with a closed convertible top have a maximum distance from one another at the height of the upper edges of the side walls of an associated body; this maximum distance is adapted to be automatically reduced in the course of the folding-in operation by means of spring-loaded adjusting mechanisms as a function of the pivot angle of the columns stretching the cover material.

Abstract: In an epicyclic distributor gear-box for driving two vehicle axles of a motor vehicle, a main shaft concentric with one of two coaxial main shafts is connected to the sun wheel of an epicyclic gear-box. Each of the two other gear elements of the epicyclic gear-box are connected to one of the coaxial main shafts. A lock-up plate clutch connected to two of the gear elements is engaged by a spring and disengaged by an axial pressure piston. Each half-clutch has a plate carrier and one of the plate carriers has an abutment supporting all the plates. The abutment is both immovably fixed on the concentric main shaft by releasable fasteners and is provided with axial passage for a clutch disengagement assembly. The spring maintains the engaged end position and is located on the sun wheel side of the plate carrier having the abutment and the axial pressure piston is located on the other side.

Abstract: A motor vehicle having at least two live axles is driven by an engine having an output shaft which is transverse to the direction of travel of the vehicle. That engine is succeeded by a change-speed transmission having shafts which are parallel to the output shaft of the engine. The change-speed transmission drives one live axle via a spur gear train and drives the second live axle via a first angle drive that is operatively connected to the spur gear drive, a second angle drive that is operatively connected to the second live axle, and a universal-joint shaft interconnected between the first and second angle drives. To permit the input shaft of the first angle drive to be arranged as close as possible to the change-speed transmission without an increase of the driving pinion of the second angle drive in diameter, a planetary gear train is interconnected between the first angle drive and the universal-joint shaft.

Abstract: A method and device for automatically monitoring the state of steering and wheel suspension geometry and the state of balance of rotating parts connected to the steering linkage of a motor vehicle and for warning the vehicle driver when the state of the monitored parts is incorrect. Statistical methods are employed for analyzing the signals corresponding to the positions and motions of the steering linkage and generated by a single sensor on the steering linkage.

Abstract: A circuit arrangement for the electro-thermal measurement of the filling level in the tank of a motor vehicle which includes a resistance sensor adapted to be heated during a heating time of a sampling period. In order to assure that the resistance sensor can cool off again within the sampling period even after several starting attempts of the engine, the sequence control of the circuit arrangement connected with the voltage supply is connected with a further voltage source from which, after turning off the voltage supply, the sequence control is continued to be supplied with voltage by a switching circuit over a time interval which corresponds to the termination of the sampling period.

Abstract: The use of an alloy of the formulaTi(V.sub.l-a-b Fe.sub.a Al.sub.b).sub.x Cr.sub.y Mn.sub.zwherex=greater than 1. to 2y=0 to 0.2x+y=at most 2a=0 to 0.4b=0 to 0.2a+b=at most 0.5(l-a-b).x=at least 1Z=0 to (2-x-y)as a getter material. The alloy is distinguished by a low activation temperature, favorable mechanical properties and inexpensiveness.

Abstract: A fuel injection nozzle for internal combustion engines comprises a nozzle body (1) and a nozzle needle (5) guided therein. The nozzle body (1) terminates in a nozzle cap (3) in which ejection bores (4) are provided and which forms at the inside a conical valve seat (6) against which the nozzle needle (5) is pressed. The nozzle needle (5) lifts under the pressure of the fuel supplied in a first lifting phase against the force of a spring (8) off the valve seat (6) and bears on a stop (19). This stop (19) is limitedly displaceable in a second lifting phase against the force of a further spring (9). To reduce the hydrocarbon emissions in the exhaust gases of the internal combustion engine and diminish ignition noise, the generated surface (M) of the imaginary cylinder formed in extension of the ejection bore (4) between the inner edge (R) thereof and the surface of the nozzle needle (5) lifted off the valve seat in the first lifting phase is made smaller than the cross-section of the ejection bore (4).

Abstract: A fuel injection nozzle for internal combustion engines comprises a nozzle needle (2) guided in a nozzle body (1) and loaded by a helical pressure spring (4). The nozzle needle (2) moves under the pressure of the fuel out of its closure position onto a stop (6) which in turn is loaded by a further but stronger helical pressure spring (7) and limitedly displaceable against the force thereof. The stronger helical pressure spring (7) surrounds the weaker helical pressure spring (4) and the fuel flows through a bore (5) parallel to the spring axis. To achieve a reduction of the external diameter of the injection nozzle in the region of the two springs (4, 7) the latter arranged eccentrically rather than coaxially. Furthermore, between them a preferably likewise eccentric bush (8) is provided through which in the region of its greatest wall thickness the bore (5) for the inflowing fuel extends.

Abstract: A device for actuating a safety device, in particular a roll bar in a motor vehicle. The device includes a first sensor which is actuated when a vehicle acceleration exceeding a predetermined limiting value occurs and which generates a switch signal for a release device to activate the roll bar. The device also includes second and third sensors which control switches when both at least one wheel suspension is fully extended and the vehicle is tilted about either a longitudinal or transverse axis, so as to actuate the safety device during even relatively slow overturns.

Abstract: A ending bar is designed as a bumper and composed of a front and a rear shell, the rear shell of which is under tensile prestress by means of an appropriate connection to the front shell.

Abstract: An apparatus for reducing the transmission of vibrations from an engine to a transmission line having a divided flywheel with first and second flywheel elements is provided by the in which the two flywheels are connected to the engine and transmission line, and are respectively connected by a spring mounting and at least two frictional clutches positioned between the two flywheels. The second frictional clutch has frictional contact smaller than the maximum torque of the engine and relative movements between the flywheel elements are effectively damped when the forces acting between the flywheel elements in these relative movements are weaker than the maximum engine torque, but stronger than a predetermined threshold value.

Abstract: A drive mechanism for motor vehicles having two drive axles is disclosed. The drive mechanism includes a transmission drive followed by a differential gear unit. The differential gear unit includes first and second driven members. The first driven member is drivingly connected to the first drive axle and, via a spur gear drive system, to a first set of friction plates in a fluid friction clutch unit. The second driven member is drivingly connected to the second drive axle and, also via a spur gear drive system, to a second set of friction plates in a fluid friction clutch unit. The first set of plates and the second set of plates of the clutch unit are frictionally coupled to each other and thus act to equalize the rotational speeds of the two drive axles.To enhance the operation of the drive mechanism, the spur gear drive system connecting the driven members to the clutch unit provides a gear ratio greater than one.

Abstract: According to the present invention, the improved apparatus provides a feedback control system for regulating an explosive-mixture forming device of a vehicle having an engine, accelerator pedal means for controlling the speed of the engine, a drive train including a drive shaft, a flywheel on the drive shaft, a gearbox having a plurality of gear stages, and a wheel assembly including at least one driven wheel. The apparatus includes first sensor means for detecting deflection of the accelerator pedal means, second sensor means for detecting the angular velocity of the drive shaft flywheel, third sensor means for detecting the torque of the drive shaft, fourth sensor means for detecting the angular velocity of the at least one driven wheel of the wheel assembly, and fifth sensor means for detecting the identity of the gear stage in use in the gearbox.

Abstract: A heat exchanger for the independent heating of the driver and front-seat passenger side of a passenger space, having flow pipes located at the ends of the heat exchanger at the transition between the upper and lower water compartment. These flow pipes are connected to the central flow connection via a flow channel transverse to the central flow connection and corresponding juncture channel. The transverse channel is located above a collecting chamber which is located at the lower side of the upper water compartment. The flow pipes guide the flow from the upper water compartment to the lower water compartment. Return pipes are positioned to guide the flow from the lower water compartment into the collecting chamber in the upper water compartment. From the collecting chamber the flow travels out of the upper water compartment through return connections.

Abstract: This invention relates to a hydraulic adjustment arrangement for the control of the injection start for a motor vehicle internal combustion engine, consisting of a primary part on the side of the internal-combustion engine and a secondary part on the side of the injection pump as well as radial pistons operating as a function of the admission of hydraulic oil, said radial pistons operating as a function of the admission of hydraulic oil, said radial pistons being guided in cylinders contained in the secondary part and interacting with levers extending in a circumferential direction and being pivoted on the secondary side, flexible connectors resting on said levers in one portion and fixed to the primary part on another portion, such that a radial movement of the pistons and as corresponding outward swivel movement of the levers and the flexible connectors causes a rotation of the secondary part relative to the primary part.