Abstract: A multi-speed transmission, especially an automatic transmission for vehicles with at least three speeds, utilizing fluid circulations and force-lockingly operable engageable units for the shifting of the transmissions, especially with the use of epicyclic gears, in which the fluid circulations and the engageable units are so coordinated to the epicyclic gears providing the different transmission ratios that the engagement of the speeds under tractional force takes place exclusively by filling and/or emptying of fluid circulations as well as by release of the force-locking engageable units whereas an engagement of the force-locking units takes place only when the latter are not under tractional force whereby at least a part of the fluid circulations serves for the engagement of several speeds and the number thereof is smaller than the number of speeds engaged thereby.

Abstract: A seal for the gas channels of a regenerative heat-exchanger which consists of a sealing bar that abuts at a rotatable disk-shaped storage body and of a sealing diaphragm which, assisted by leaf spring elements, extends over the gap between the sealing bar and the oppositely disposed housing wall; the sealing diaphragm which is V-shaped or U-shaped in cross section, is enclosed along one of its legs and pressed against the sealing bar by a clamping strip secured at its one edge along the sealing bar; with its back side, the sealing diaphragm is disposed opposite at least one abutment arranged at the sealing bar.

Abstract: A forward longitudinal bearer of a motor vehicle constructed as closed, hollow bearer with an impact-near energy-absorbing part which is so composed section-wise that three series-connected zones result, of which the center zone is located within the area of aggregate support points and exceeds the two adjoining zones as regards their rigidity by the use of materials of increased strength and/or greater wall thickness.

Abstract: A sliding roof for vehicles, especially for passenger motor vehicles, equipped with a sliding cover movable in the vehicle longitudinal direction within longitudinal guidances and with a locking mechanism for the sliding cover to prevent movement thereof relative to the longitudinal guidances; at least one pressure member movable along with the sliding cover is provided, which is guided and selectively actuatable transversely to the slide direction; the pressure members which preferably consist of suitable soft-elastic material, are adapted to engage with brake surfaces extending at least approximately vertically in the slide direction whereby the brake surfaces are provided with a roughening to increase the attainable brake forces.

Abstract: A traffic system in which the cross-guide device in the operating position thereof is arranged immovably in the transverse direction relative to the axle body of the vehicle axle having steerable wheels and is constructed so sturdily itself as also as regards its suspension that the vehicle can be form-lockingly track-guided and/or laterally displaced also without deflection of the steerable wheels by way of the cross-guide device without damage and in an operationally reliable manner; force-measuring devices for determining the lateral forces exerted on the cross-guide device are arranged in the suspension of the cross-guide device while the force- and movement-transmitters are so constructed that the steerable wheels are automatically deflected always so as to maintain a predetermined desired value of the lateral force at the cross-guide device.

Abstract: A method and apparatus for simulating dynamic loads in structural parts, especially in motor vehicle bodies, with an introduction of tensional compressive and torsional forces longitudinally, transversely, and vertically to the driving direction; at least for one introduced force, the low frequency component of the signal is separated off, is transformed sectionwise to higher frequencies and is then added, shifted with respect to time, to the structural part to be loaded.

Abstract: An elastic shaft coupling, especially a cardan shaft coupling for motor vehicles, which is equipped with a disk-shaped elastic base body, in which are arranged about the center axis of the base body an even number of connecting elements having parallel axes; of these connecting elements, successive ones are coordinated to opposite sides and are connected by way of at least one band loop that is supported on at least one of the respective connecting elements by way of an elastic intermediate member.

Abstract: A pneumatic system for a central locking installation of motor vehicles with lines that conduct pressures to pneumatic elements, of which one each is coordinated to the parts to be locked, such as doors, tank lid, rear lid and/or front hood and the like, whereby key actuation of the locking mechanism at a vehicle door opens, respectively, closes the associated part(s); the pneumatic elements are constructed as single-chamber elements, to which excess pressure and vacuum are alternately fed through the same line; the excess pressure and vacuum are produced by a pump driven by an electric motor that is set into operation by a pulse transmitter engaged during the actuation of the locking mechanism of the driver door, and that is again automatically turned off after the termination of the opening or locking operation.

Abstract: A method and apparatus is disclosed for cooling the interior of a motor vehicle which motor vehicle is powered at least in part by hydrogen liberated from a hydride. Cooling of the interior such as the passenger compartment or cargo area is achieved by using the heat of the interior to supply at least part of the heat necessary for heating the hydride to liberate hydrogen. The apparatus includes, in combination with the interior of a vehicle a hydride container and heat transfer mechanism for transferring the heat of the interior to the hydride container thus cooling the interior.

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 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: 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 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: 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.