Abstract: A valve-actuating lever for internal combustion engines with a slide member disposed in a rectangular groove which is form-lockingly retained at the lever member by at least two strips within the area of the forward and rear edge in relation to the direction of rotation of the cam shaft, whereby the lever member is provided with undercuts within the area of the rectangular groove; the strips thereby consist of fiber-reinforced plastic material with a temperature resistance of at least 150.degree. C. and form-lockingly surround the undercuts of the lever member as well as the forward and rear edge of the slide body in relation to the direction of rotation. It is preferred if the strips are constructed as closed frame.

Abstract: A display for displaying the velocity of a vehicle and the rotational speed of the vehicle engine is proposed, the velocity being represented in an annular segment and the speed being represented within a sector-shaped electronic indicator as quasi-analog luminous display band.

Abstract: A coupling device for rods required to be connected together is proposed, with a connecting element having bores on both sides, into which the ends of the rods can be inserted. One bore ends in an internal ring-shaped groove coaxial to it, in which an angled end of the rod is accommodated. The other bore is constructed as a screw-threaded bore, into which the rod is engageable by a screw-threaded shoulder. In order to insert the angled end, the connecting element is provided on its housing part with a releasable cover part, which can be closed and caught afterwards. A precise length adjustment of the rods is possible by rotating the connecting element.

Abstract: In a tilt-adjustable seat cushion for a vehicle seat having an underframe receiving the upholstered seat part, two lateral frame parts for the pivotable bearing of the underframe and a tilt-adjusting mechanism operating between the underframe and the frame parts for the individual adjusting of the front edge of the seat, the manually operated adjusting shaft of the tilt-adjusting mechanism, in order to facilitate the assembly, is disposed in a separate bearing block that, after pre-assembly with the frame parts and the adjusting shaft, is connected with the underframe by screws or clips.

Abstract: A tilting ashtray for motor vehicles, the facing part of which is milled out of a facing plate covering the surroundings, has a burning-ash protection strip which is integrally formed closely beneath an upper-lying milled-through transverse gap onto the facing part.

Abstract: The invention relates to a direct fuel injection method for a diesel engine in which a preset quantity of fuel is introduced into a combustion space via a fuel injection nozzle in a preinjection and in a main injection which is separate from the preinjection. To achieve a short ignition delay with lowest possible specific fuel consumption during this process, the beginning of the preinjection occurs within the range of 10.degree.-16.degree. or of 20.degree.-30.degree. crank angle before top dead center, depending on speed, and the beginning of the main injection occurs within the range of 2.degree. after top dead center to 15.degree. before top dead center, the interval between the end of the preinjection and the beginning of the main injection being within the range of 3.degree. to 14.degree. or of 3.degree. to 26.degree. crank angle before top dead center and the preinjection quantity is 10% to 20% or 1% to 5% of the quantity of fuel preset in each case, depending on load.

Abstract: An internal combustion engine is provided with a sound-insulating enclosure (2), which defines a sealed passage extending through the enclosure. A passage which extends through the enclosure is sealed by a sealing ring (9), which consists of a rubber-elastic material and is disposed between an inner flanged ring (7), which is secured to the engine, and an outer flanged ring (8), which is secured to the enclosure (2). In order to provide sealing means which are satisfactory for a passage for the exhaust manifold (3), the inner flanged ring (7) carries a protective shield (10), which shields the inside surface of the sealing ring (9) and which defines with the sealing ring (9) a clearance (12), which contains a heat-resisting and sound-absorbing insulating material (11).

Abstract: The invention relates to bracing of vehicle body structures that are deformed with absorption of energy upon collision wherein a resiliently front mounted engine of a motor vehicle has connected thereto a longitudinally extending tension band fastened to the vehicle body structure laterally adjacent to the engine which tension band is extended upon collision and wherein the bracing function of the front engine is largely independent of the course of deformation of the car front in the case of a frontal collision, and wherein the tension band is constructed as a flexible traction cable at least along a part of its length and wherein along its length it is provided with a stress absorbing means for the absorption of forces after an intended partial deformation of the vehicle body structure associated with it.

Abstract: The invention relates to a safety system on track guidance lines for optionally track-guidable or road-going vehicles with pivotable feeler rollers. To avoid accidents which may be caused by travelling on track guidance lines with feeler rollers not extended or only incompletely extended, the invention provides for there to be a switch, which can be operated by the feeler rollers, to be arranged on each of the two transverse guide barriers, approximately opposite each other on the same level as the feeler rollers of the vehicle, at the beginning of the track guidance line. These switches, if operated together, switch via a control unit an optical display device, located downstream of the switches in the direction of travel of the vehicle, and normally indicating a block signal, to "clear line".

Abstract: In an antilocking ABS and propulsion ASR control system for a road vehicle, there is a brake pressure regulating member used for both antilocking ABS and for propulsion ASR control in which a hydraulic cylinder having a piston driven under valve controls defines an ABS control space, increasing when a drive pressure space of the cylinder is subjected to pressure, and an ASR outlet pressure space, decreasing when the drive pressure space of the hydraulic cylinder is subjected to pressure; and wherein, in normal braking, not subjected to ABS or ASR control, both spaces are connected to the brake circuit of the driven vehicle wheels. The control system is activated as a result of the valve control connection of an auxiliary pressure source to the drive pressure space of the hydraulic cylinder.

Abstract: A reciprocating internal combustion engine which is enclosed by a sound-insulating sheath comprises a crankshaft. A coupling which insulates against structure-borne sound is provided for coupling the crankshaft to an auxiliary drive shaft for driving auxiliary devices disposed outside said sheath. Said coupling comprises a resilient ring and axially parallel connecting screws, which are peripherally spaced apart and are secured in alternation to the crankshaft and to the drive shaft and extend through tubular spacers mounted in the ring. The drive shaft is rotatably mounted in a mounting plate, which is fixed to a crossbeam. The internal combustion engine is supported on the crossbeam by an annular member which insulates against structure-borne sound.

Abstract: The application relates to a fastening means for a gas cushion unit associated with a passenger seat in a motor car, where the gas cushion unit exhibits a housing which is slidable into a frame formed by fixed parts of the vehicle and is anchorable there by the cooperation of a central screw ehich penetrates frame and housing at their upper side and lower side. In order to achieve absolutely reliable anchorage for a minimum assembly outlay, it is provided according to the invention that a channel closed radially at least in sections and serving for the passage of the central screw is provided on the rear side of the housing at least on a part of its vertical extension.

Abstract: A component group of electromagnetically shiftable directional control valves which can be installed in a simple manner includes 2/2- and 3/2-directional control valves preassembled on an electrical printed circuit board and secured in common with the printed circuit board by plugging-in the directional control valves into plug-in receptacles of a base element and by fastening a cover at the base element in the housing formed by the base element and the cover; a pneumatic main channel extends between the base element and the cover which is in fluidic communication with several directional control valves and which is tightly closed off by fastening the cover at the base element.

Abstract: A method and system for determining optimum ignition times with regard to engine operation in which the engine is commanded, at regular, short-time intervals, to operate under conditions which cause knocking in order to be able to sense the knock limit. This is achieved, following the occurrence of a characteristic operating parameter in conjunction with a knock signal, at a frequency which is preferably significant, by storing an appropriately-corrected ignition-time value in a set of correction data, this ignition-time value lying somewhat beneath the knock limit. If the same characteristic operating parameter recurs, an optimum ignition time is accordingly indicated, which lies slightly beneath the knock limit. This procedure enables the engine to be operated under conditions which are optimum with regard to fuel consumption, without entering the knocking range with excessive frequency.

Abstract: A four-wheel drive of a motor vehicle is arranged to effect automatic changes between a two-wheel drive mode and a four-wheel drive mode in dependence on the slip of two wheels (5) which are permanently driven. A frequent change from the four-wheel drive mode to the two-wheel drive mode for a speed comparison is to be avoided in a four-wheel drive which has a relatively simple structure. Two sensors (12) are associated with the two permanently driven wheels (5) and the output signals of said sensors are delivered to a computer (11), which determines for consecutive units of time the occurrences of the speed difference between said two wheels in excess of a predetermined threshold value and generates a distribution curve of said occurrences in consecutive units of time. That distribution curve is compared in the computer with a corresponding stored limiting curve, which is applicable to a minimum coefficient of road friction.

Abstract: A method for the regulation of the mixture composition in a mixture-compressing internal combustion engine with an electronically controlled fuel injection system. In order to be able to dispense with a lambda probe, the mixture is initially enriched or leaned for each cylinder unit directly after the start of the internal combustion engine, the change between two successive firings of the energy pulse introduced into the crankshaft by an ignition is continuously determined thereafter and the mixture is enriched in the case that the amount of the respectively determined energy pulse change lies above a predetermined shifting-comparison value dependent on operating parameters, and otherwise is leaned down.

Abstract: A spare wheel suitable for storage in a trough in a motor vehicle includes a wheel rim which is formed to include a container-receiving cavity. A pot-shaped container is inserted therein. Fastening mechanisms are provided to secure both the spare wheel and the container in a position within the motor vehicle trough.

Abstract: To economize weight, an arcuate support tube of a roll-over yoke is produced from high-tensile heat-treated material and received by both members and by part of the adjacent median region in bracing structures which mount it on the motor car body and which consist respectively of two mutually connected half-shells which positively enclose and thereby retain the support tube.

Abstract: In a vacuum distributor box with a suction connection and several vacuum connections, all the vacuum connections are equipped with non-return valves open only when vacuum lines are inserted, both the seals of the box housing itself and the those of the vacuum lines relative to the box housing and the valve sealing seats of the non-return valves being incorporated in a diaphragm seal clamped on all sides between two housing parts.