Abstract: A chain drive, especially for the control drive of internal combustion engines with a tensioning member engaging at a non-loaded chain section. In addition to this tensioning member, a further tensioning member is provided which engages at another chain section and whose tensioning movement is derived from the first tensioning member.

Abstract: A fuel injection pump for compressed air injected internal combustion engines with a pump piston and with a control slide valve member coaxially arranged to each other in a given pump cylinder, of which the pump piston controls a fuel control bore in the pump working space and actuates the control slide valve member which is under the force of a spring; the control slide valve member which rests continuously on the pump piston and possibly may be made in one piece therewith includes in its lower half facing the pump piston a recess, preferably rounded-off, that extends in the direction of movement of the control slide valve member and that terminates at a slight inclination in the direction of the outer circumference of the control slide valve member; a bore arrangement is provided in the housing part in which the control slide valve member is longitudinally displaceably guided by means of which the pump pressure space is connected with the pump working space alternately by way of a bore arrangement in the co

Abstract: A triggering system for a passenger protective installation in a motor vehicle with a sensor-controlled device which, in the presence of predetermined criteria, supplies a pulse for triggering a primer operating preferably on pyrotechnical basis; the primer is thereby accommodated shielded, preferably inside a housing surrounding the sensor-controlled device, while at least one fuse cord, adapted to burn at high velocity, leads from the primer to an energy source, such as a pyrotechnical charge, instantaneously transferring the passenger protective installation into its effective operating position.

Abstract: A water drainage spout, especially for hollow spaces in motor vehicle structures, which is so arranged that any water present in the hollow spaces is able to flow off by gravity when the vehicle stands still or drives, and in which the area serving the water drainage is surrounded on its side facing the atmosphere by a circumferential apron; the area serving the water drainage is constructed funnel-shaped and is closed off by a bottom adapted to be pushed through while water discharge openings are provided in the wall of the funnel distributed over the circumference thereof, which extend to this bottom.

Abstract: A contactless switch element for electric currents, which is constructed as a hydrogen-diffusion-impervious but electrically non-conductive, encapsulated metal adapted to be reversibly hydrogenated or dehydrogenated.

Abstract: An anti-skid protective cap for actuating pedals, such as brake pedals and the like, of a motor vehicle with a single downwardly projecting deflecting surface constructed so as to provide good sliding characteristics. This deflecting surface accomodates the sliding of the operator's shoe sole edge therealong during a pedal change. The deflecting surface is provided on the side of the protective cap facing a gas pedal, whereby the operator's shoe is prevented from getting stuck under the actuating pedal. The shoe-engaging portion of the cap may be artificially aged by applying a coating of an aqueous solution of sodium hypochlorite, or it may be provided with a coating of an elastic lacquer.

Abstract: A spline shaft connection between a shaft and a hub with a large number of axially extending teeth and tooth gaps respectively counter-teeth and counter-tooth gaps which form-lockingly engage with one another, whereby a tooth flank clearance is provided between the flanks of mutually contacting teeth and counter-teeth that becomes larger in the direction of the axial extent; the teeth and counter-teeth engage into one another at least approximately uniformly without clearance at least over a small fraction of the axial extent of the spline shaft connection while the remaining part of the axial extent is constructed with a tooth flank clearance that becomes larger in the direction toward the end opposite the flow of forces; the enlargement of the tooth flank clearance thereby follows a law, pursuant to which the tooth flank clearance is a function of the axial coordinate whose first derivative is equal to zero along the axial coordinate at the location of the beginning of the clearance enlargement.

Abstract: An installation for feeding the lock-tongue and/or the belt-band of a safety belt system, especially of a three-point safety belt with belt roller, into a position favorable for the fastening of the belt in a preferably two-door passenger motor vehicle, in which after boarding of the vehicle, the lock-tongue and/or the belt-band is transferred by a servo-mechanism from a rearward position not impairing the free access to the rear seats in the course of a rectilinear feed movement into a forward position coordinated to the driver or co-driver; the servo-mechanism together with the lock-tongue and/or belt-band returns into the starting position immediately after the termination of the belt-engaging operation and after a predetermined or freely selectable time interval in case the lock-tongue and/or the belt-band is not picked up.

Abstract: A hydrodynamic retarder for vehicles, especially for motor vehicles, with an internal working circulation within a working space having at least one rotating blade wheel and at least one stationary blade wheel, with an external cooling circulation that can be filled by way of a filling and discharge line out of a pressure-medium-actuated filling cylinder and which includes a by-pass or control valve, and with a lubricating line which connects the sealing spaces of the retarder shaft both with the center of the working space as also with a control member of the control valve and with a reservoir tank that is arranged at a higher level than the retarder and is additionally connected with the filling and discharge line by way of a closure valve.

Abstract: A radial turbine wheel for a gas turbine which consists of two parts and more particularly of a first part adjoining the turbine inlet which includes the outer sections of the blades and of a second part leading to the turbine outlet which includes the inner essentially curved section of the blades whereby the two parts are made of materials having different properties.

Abstract: An air-guide installation for motor vehicles, especially station wagons, which is constructed as profile bar that projects from the vehicle outer body panel within the transition area between roof and rear part, extends in the vehicle transverse direction and is effective as spoiler; the profile bar is thereby adapted to be extended away from the outer body panel so that an air-guide channel results between the outer body panel and the bottom side of the profile bar.

Abstract: The wheel comprises a hub having a periphery provided with peripherally spaced, radially projecting lugs. An integral wheel body comprises a central ring which surrounds the hub and is secured to the lugs, and spokes radiating from the ring. The hub and ring define air flow passages disposed radially between the hub and ring.

Abstract: An installation for the height adjustment of the upper anchoring or deflection point for the shoulder belt of a belt system in a vehicle, with individual seats adjustable in the horizontal and/or vertical direction; a transmission installation is thereby interconnected between each seat and the coordinated anchoring or deflection point which during an adjustment of the seat so displaces the anchoring or deflection point that a height position of the anchoring or deflection point is achieved which is favorable for the belt user in relation to the adjusted seat position.

Abstract: A mixture-compressing internal combustion engine with a combustion space arranged either in the piston or in the cylinder head and with an ignition source located in the cylinder head; the main volume of the combustion space is thereby delimited by circular arcs, as viewed in plan view, of which the circular arc located closest to the ignition source is arranged at least approximately concentrically about the ignition source; a part of the piston which is matched within this area of the cylinder head adjoins the ignition source so closely that at first a smaller portion of the charge is ignited in the gap which is formed between the cylinder head and this piston part shortly prior to the end of the compression stroke while the main portion of the charge is combusted, at the earliest, beginning with the upper dead-center position of the piston.

Abstract: A bumper for a motor vehicle having a support member that extends over the vehicle width and is supported at fixed vehicle parts; a preferably surface-finished cover is provided in the upper area of the support member which is adjoined by a covering member that covers off at least the remaining visible area of the support member; the cover is thereby drawn forwardly up to the end face of the support member and its end-face end area is supported at the support member and is covered off by the covering member.

Abstract: An ignition device for a passive retention system, especially in motor vehicles, in which an ignition unit arranged in a housing includes two plug pins which freely project on one side with their free end out of a casing and which are intended for slidingly receiving thereon a plug coupling, while the two plug pins are connected at the other end with an incandescent bridge and are surrounded by an ignition or primer mixture disposed inside of a casing; protective contact means are provided which protect the plug pins against electrostatic charges by short-circuiting the same prior to the emplacement of the plug coupling on the plug pins; the protective contact means consist of an essentially U-shaped elastic clamp which electrically conductively connects with each other the plug pins, when the plug coupling is not inserted, and which is automatically opened, when the plug coupling is inserted, in such a manner that the clamp interrupts the contact between the plug pins only when the regular ignition circuit h

Abstract: A by-pass valve for servo-steering systems to turn off the working pressure in a cylinder chamber of a pressure medium cylinder, whose valve housing includes a valve connection adapted to be connected with the cylinder chamber, a valve connection adapted to be essentially pressure-relieved, and a valve seat for a check valve operatively connected between the two valve connections; the valve housing is thereby adjustable relative to the axis of a steering shaft for purposes of changing the position of its valve seat while the closure member of the check valve is thereby retained by springy means in its normal position closing-off the valve connections with respect to one another and is actuatable into its by-pass position connecting the valve connections with each other by way of a stem movable in unison with the closure member by way of a cam surface fixed for movement in unison with the steering shaft; the valve housing is thereby exclusively rotatable in relation to its valve housing axis but is immovably s

Abstract: A motor vehicle, especially a passenger motor vehicle which includes a windshield frame and a rigid section of the vehicle body upper part that can be displaced rearwardly in the vehicle longitudinal direction and is guided inside of the fixed side walls of the vehicle body lower part; the guide means for the displaceable section of the vehicle body upper part are thereby arranged laterally to the rear of the side doors while the displaceable section is adapted to be placed sealingly against the windshield frame when pushed forwardly into its closed position.

Abstract: An internal combustion engine with applied ignition, preferably with a warm-up controller for a continuously operating fuel injection, in which the control pressure of the fuel injection is discontinuously controllable in dependence on different parameters with one or several jumps in the characteristic curve.

Abstract: An installation for the height adjustment of an upper deflection fitting for the shoulder belt of a belt system, which is accommodated in a hollow bearer of a vehicle, whereby the installation is steplessly displaceably guided in guidances of the hollow bearer while a hollow bearer wall is provided with at least one row of teeth or recesses into which engage the coordinated teeth or recesses of a detent member connected with the deflection fitting, against the effect of at least one spring force retaining the detent member in the normal position.