Abstract: Meander-shaped exhaust gas ducts pass through a soot burn-off filter made of porous ceramic filter material. Catalytically coated blind ducts branch from each of the outer bends to receive and combust solid combustion residues from the exhaust gases. The residual gases produced in the blind ducts by the oxidation of the combustion residues pass through the filter material into adjacent discharge ducts and are transported from there to the outside of the filter. In this way the exhaust gas ducts remain largely free of solid combustion residues, display no clogging phenomena and therefore keep the exhaust gas backpressure low. This improves the starting behavior of an engine, achieves more favorable warm-up behavior and has a positive influence upon the response behavior of an exhaust gas turbocharger.

Abstract: A low pressure fuel system with fuel preheating for an air-compressing, injection internal combustion engine, in which system, a heat exchanger effective at low fuel temperature with a down-stream fine filter is provided in a supply main leading to the high pressure injection pump and a shut-off valve controlled as a function of the fuel temperature is provided in a return main leading away from the high pressure injection pump.

Abstract: A control unit for manually controlling six reversible electromechanical adjusting devices utilizing a single joy stick actuator which is rotatable to two positions from a neutral position tiltable in a first direction to two other positions from the neutral position and tiltable at right angles to the first direction to two further positions from the neutral position. At each of the six positions various switches are either opened or closed to provide a binary code output which is fed to a decoding and control circuit which operates selected one(s) of the six adjusting devices. In this manner three rear-view mirrors on a vehicle can be properly positioned by two adjusting devices rotating the mirrors along a right angled axis.

Abstract: An antilocking system for a road vehicle with static brake circuits operates on the principle of pressure modulation when brake pressure changes demanded by the control system remain small by changing the volume of a pressure modulator modulation chamber, which can be connected and disconnected to the wheel brake via an inlet valve. If larger brake pressure changes are necessary, the antilocking system operates on the pump-back principle, according to which brake fluid is pumped back via an outlet non-return valve from the modulation chamber into an output pressure space of the brake unit of the brake installation and before a further brake pressure reduction takes place in response to a renewed increase in volume of the modulation chamber. To permit switching from the pressure modulation to pump-back operation, the inlet valve is designed as a spool valve mechanically controlled by a hydraulically driven step piston, which forms the movable boundary of the modulation chamber.

Abstract: A hand-held automatic firearm comprises a trigger mechanism, which includes a hammer, arranged to be cocked as the breechblock recoils, a sustained-fire lever, controlled by the breechblock and locks the hammer as the breechblock advances, a trigger slider, movable by the trigger against spring force from an initial position to a single-shot position and further to a sustained-fire position, and a pair of mutually cooperating levers, which respectively constitute a release member and a disconnector member and are adapted each to enter the path of movement of a hammer extension and to assume a position that depends on the position of the trigger slider. The release lever and the disconnector lever are pivoted on a common upright pivot and have respective confronting camming side edges, which define between them a cam slot. A camming member is movable by the trigger slider and extends into said cam slot.

Abstract: An antilock brake system includes a pressure modulator having a step piston. The smaller step defines a primary chamber connected to the wheel brake and the larger piston step defines a driving pressure space that is alternatively connected to the high pressure output of an auxiliary pressure source or to its unpressurized storage reservoir by a control valve. By the admission of pressure to the driving pressure space, the modulator piston, against the restoring force of a strong restoring spring, is forced into its initial position corresponding to the minimum volume of the primary chamber. For a pressure reduction phase, the driving pressure space is connected with the storage reservoir of the auxiliary pressure source, so that, under the combined effect of the brake pressure in the primary chamber and of the restoring spring, the piston moves to expand the volume of the primary chamber.

Abstract: The invention relates to a crankshaft drive for an internal-combustion engine of V-type having a crankshaft with two mutually offset crank pins per throw, the pins being inter-connected via a narrow intermediate element. In order to ensure an optimum axial guidance of two connecting rods mounted rotatably on the crank pins, even without an intermediate web, the intermediate element has a cross-sectional area which largely corresponds to the overlapping sectional areas of the two crank pins. Moreover, each connecting rod is guided by means of an axial stop surface arranged on the large connecting rod eye of the adjacent connecting rod.

Abstract: An adjusting device for automatically compensating for cable strand elongation in a vehicle parking brake utilizes a rotatable disc cam having a circumferential edge which spirals radially out to effect a displacement of a cable yoke in a cable tensioning direction as slack develops in a cable strand of the parking brake. The disc cam is tensioned by a torsion spring, the entire device having a small number of parts and high operational reliability even when dirty.

Abstract: The invention relates to a ground-level multipole current supply system for track-guidable, rubber-tired, electrically propulsive vehicles, wherein extruded aluminum profiles are provided within an electrically insulating duct-like shielding for each pole. To permit the current supply system to be kept small and easily installable the shielding is constructed as a self-supporting extruded profile which is fastened, suspended with ducts open downwards, on support arms. The substantially triangular live rails are retained screwlessly by sliding axially behind beads in the shielding. A vee-shaped arrangement of the contact tracks of the two live rails and of the two contact pieces on the current collector side exerts a self-centering influence upon the current collector head, so that the latter can be of simple construction and only little play need be provided for relative movements between current collector head and live rails.

Abstract: In a motor car seat with a variable-angle backrest and having an arm support retained on the frame of the backrest which is foldable down from an essentially vertical erect non-use position in line with the backrest into a lower substantially horizontal use position. While in the use position of the arm support, the backrest maintains its alignment at least during the changing of the backrest during normal driver seat back inclination adjustment, in order to prevent the arm support from striking operating parts of the vehicle; and wherein, when the backrest is folded forwards such as to allow a passenger to exit from a rear seat, the arm support is guided to maintain its position substantially horizontal and above the shift lever arranged on the central console.

Abstract: In a tandem master cylinder, the primary and secondary outlet-pressure spaces of which are respectively limited in the axial direction by the push-rod or primary piston and a secondary piston designed as a floating piston or by the latter and an end wall fixed relative to the housing. A restoring spring urging the secondary piston into its basic position is arranged in a central cavity located in the secondary piston which is limited by a blind bore of the latter. The restoring spring is supported on the piston side on the inner face of the bottom of a pot-shaped supporting projection facing toward the primary piston and belonging to the secondary piston and, on the housing side, on a radial stop pin passing through a longitudinal slot of an intermediate part of the secondary piston extending between the two piston flanges which form the respective pressure-tight displaceable limitation of the secondary outlet-pressure space on the one hand and of the primary outlet-pressure space on the other hand.

Abstract: A coupling arrangement for two axially aligned shaft sections is obtained through two splined profiles, one attached to each shaft through a tensioning arrangement that eliminates relative rotation between the two shaft sections while permitting longitudinal movement therebetween. One shaft section connected to one end of the tensioning device and the other shaft section connected to another end of the tensioning device and wherein the other end of the tensioning device operates to cause one of the splined profiles which is slotted to grasp the other splined section to provide for the relative non-rotational drive and the axial longitudinal shifting of the shaft sections.

Abstract: A control arrangement for a combined central locking and burglar alarm system for motor vehicles is constructed in such a manner that an accidentally tripped false alarm can be deactivated in a single manner by a designated key and a key detection switch associated with a door locking cylinder, so that the activation state of the burglar alarm system is automatically adapted to the existing locking state of the central locking system.

Abstract: A device for controlling at least one variable influencing the drive torque of a motor vehicle uses the difference between acceleration of a driven wheel and the vehicle longitudinal acceleration as a control variable. The exceeding of a slip threshold within specific time windows after the driven wheel speed has fallen below the threshold or after increasing the drive torque is used as a check for the correct dosage of drive torque and the slip threshold itself is adjusted depending on the vehicle longitudinal acceleration. This permits an optimum propulsive acceleration and the control device to adapt to changing road conditions.

Abstract: An exhaust-gas turbocharger for an internal-combustion engine is described, its turbine having a double flow housing with two channels for supplying the exhaust gases to the turbine wheel, of which on channel can be closed off as a function of a variable operating parameter by means of a sliding sleeve which is mounted in the housing so as to be axially displaceable by means of a control device. To ensure a clearly defined relationship between the adjustment of the sliding sleeve and the input variables and to create a heat-resistant control device, the sliding sleeve is connected to an axially fixed and circumferentially rotable driving ring via a positive sliding fit driving the sliding sleeve in the circumferential direction, a slot pin fixed to the housing engaging into an oblique helical groove in the sliding sleeve, and a shaft engaging on the driving ring via a positive connection and being guided radially out of the housing via a bearing in the latter.

Abstract: An air filter casing of an internal combustion engine is described, having an unfiltered air chamber which receives the uncleaned intake air and is separated from a clean air chamber for receiving the cleaned intake air by way of a filter element. To prevent possible intake of larger quantitites of water in the event of heavy rainfall, there is provided in the clean air chamber a device for swirling water which settles at the bottom of the casing, the bottom end of which device has a minimum spacing from the bottom of the casing.

Abstract: The invention relates to a hydraulically damping rubber bearing engine mount for motor vehicles, having two end walls lying opposite one another in the axial direction and two chambers which are designed as a pressure and an auxiliary chamber and which contain a damping fluid and are connected to one another by a restricted orifice. An annular, rubber-elastic spring element adjoins the pressure chamber and is secured on an end wall. A compensating chamber adjoins the auxiliary chamber and is separated from the latter by a bellows. The damping characteristics of the rubber bearing are alterable by intervention from outside. In order to be able to alter the damping effect of the rubber bearing continuously right up to complete cancellation, a diaphragm is clamped fluid-tightly in the pressure chamber and is loaded on the one side by the damping fluid and on the other side by compressed air which can be fed in from outside.

Abstract: In a dashpot for fuel tanks the cover of the intake chamber of the dashpot is dome-shaped and the suction filter is arranged at an interval below the cover. This arrangement prevents gas bubbles also being drawn off via the suction filter together with fuel.

Abstract: A hydraulically damping rubber bearing, usable as an engine mount in a motor vehicle has two end walls, between which are arranged two working chambers, both of which are filled with damping fluid and which are separated by a dividing wall in which is arranged a channel inter-connecting the working chambers with one another. The length of the channel is at least equal to the diameter of the dividing wall and its cross-section is small relative to its length. In order to make possible efficient damping of vibrations of various frequencies and amplitudes acting on the rubber bearing, the damping characteristics of the rubber bearing can be matched to the vibrations to be damped by either changing the size of the wall area or volume of the channel by intervention control from outside the bearing.

Abstract: A glove box, for motor vehicles is arranged beneath the instrument panel, and is provided with a lid pivotably mounted on it about a horizontal axis. A closing device secures the lid to the glove box. To reduce the risk of injury to vehicle occupants which results from the closing device, a lock part of the closing device is arranged on the underside of the instrument panel with a latchbolt fastened inside a cavity on the inside of the lid and a latch which can be activated through a traction cable from a remote location is provided.