Abstract: A passenger motor vehicle with a vehicle body means and with two axles carrying the body, and in which the body is supported with respect to at least one of the two axles by way of elastic axle guide elements and is rotatable at least with respect to this one axle about an axis of instantaneous rotation extending generally in the vehicle longitudinal direction and disposed at least approximately at the height of its center of gravity; the axle guide elements thereby form simultaneously spring elements for the vertical spring system of this one axle while the axle guide elements are of such construction that the vehicle body is transversely displaceable in a translatory manner with respect to this axle.

Abstract: An installation for the automatic shifting of change-speed transmissions, especially for motor vehicles, in which actuating devices are provided for the engagement and disengagement of the speeds, which are controllable by way of control means by at least two influencing magnitudes, particularly output rotational speed and torque; an electronic control unit having a programmed, constant-value memory device is provided, in which is stored at least one set of output rotational speed limit values coordinated to the individual speeds and torque steps, while at least the influencing magnitudes of torque and engaged speed are adapted to be applied to the electronic control unit by way of corresponding inputs; and output of the constant value memory device is operatively connected with a rotational speed comparison unit, in which the output rotational speed limit values given out by the constant-value memory device are adapted to be compared with the prevailing output rotational speed, whereby in this rotational spe

Abstract: A clutch disc for motor vehicle main clutches with a disc member carrying the friction linings and torsionally elastically arranged with respect to a hub member, whereby for a multi-stage torsional elasticity, several springs or spring sets with different characteristics are arranged in windows of a hub flange and of the disc member as well as of a side plate rigidly connected therewith; friction devices are thereby coordinated to the springs, whose starting point of operation is determined by a sheet metal control plate which with tabs, arms or the like engage into the corresponding windows and/or cooperate with the spring ends; at least one friction device coordinated to a harder spring stage is thereby moved up in its operation into the range of the preceding softer spring stage by a corresponding predetermined play of the respective control plate with respect to the corresponding windows or spring ends.

Abstract: A brake force control system for vehicles, especially an electronic brake force control system for motor vehicles and rail vehicles, with a back-control (1) reduction control (1) of the brake pressure of the pressure control medium causing a reduction of the brake pressure when a maximum wheel circumferential force acting at the wheel is exceeded; the back-control being disengaged when the wheel circumferential force again increases after re-exceeding the maximum value whereby the engagement and disengagement of the back-control of the brake pressure is controlled by signals which are formed, taking into consideration the hysteresis effect of the control operation, by the signs of the derivatives with respect to time of the circumferential force and of the brake pressure.

Abstract: A process for controlling the nitriding effect of a nitriding bath of a salt melt containing alkali cyanate for the nitridation of iron and iron alloys wherein the nitriding effect of the bath is maintained in a specific range by determining the voltage occurring at an electrode of a solid electrolyte which conducts oxygen ions immersed in the nitriding bath.

Abstract: A seat, particularly a co-driver seat in a motor vehicle with a seat-adjusting mechanism effective in the vehicle longitudinal direction in which the seat-adjusting mechanism, when exceeding a predetermined load which is effective forwardly in the displacement direction, automatically initiates an adjusting movement of the seat in the same direction by a predetermined amount if the seat is occupied by a person whose safety belt is not fastened.

Abstract: A heat-exchanger disk of a regenerative heat-exchanger of a gas turbine, which is secured on a rotatable carrier under interposition of ring-shaped, series-connected leaf spring elements which are connected with each other at their overlapping ends and which are supported with outwardly curved arcuate portions at counter-surfaces in a central opening of the heat-exchanger disk and with inwardly curved arcuate portions at counter-surfaces of the carrier; one retaining disk substantially coaxial to the heat-exchanger disk thereby abuts at each end face of the heat-exchanger disk whereby the two retaining disks hold the leaf spring elements in the carrier within the central opening and are connected with each other by tie-pins which extend through the annular space between the central opening and the carrier.

Abstract: A rotary piston internal combustion engine of trochoidal construction in which an intermediate chamber equipped with an injection nozzle for the fuel enrichment of the lean mixture sucked-in out of the inlet channel and conducted into the intermediate chamber is provided between the ignition chamber and the overflow channel, whereby automatic check valves for the control of the gas-exchange operations are arranged in the inlet and in the overflow channel.

Abstract: An installation for controlling a measuring beam and/or a light beam in motor vehicles, in which at least one measuring and/or light beam transmitted from the vehicle serves for measuring the distance or illuminating objects which are located ahead of the vehicle in its own lane; measuring devices are thereby arranged in the motor vehicle which determine at least the vehicle velocity and the transverse acceleration as well as possibly the longitudinal acceleration or deceleration for correcting the assumed theoretical braking action and, under certain circumstances, still other relevant vehicle magnitudes; the beam transmitter is then controllable as regards the beam range and/or beam opening angle and/or angle deviation of the beam with respect to the vehicle longitudinal axis by a computer as a function of these measured values.

Abstract: A shell-shaped children's seat for motor vehicles which is equipped with a headrest terminating in a backrest and with an impact member extending over the width of the shell and resting on the associated shell edge portions within the area of the seating surface; the impact member thereby extends rearwardly up to the transitional area of the backrest and the headrest, is pivotally connected thereat and can be tilted up visor-like after the disengagement of a locking device to facilitate ingress and egress of the seat.

Abstract: A construction of the separating surfaces of a split bearing with bores for receiving the cover bolts, in which two adjacent separating surfaces of different bearing parts are inclined to one another when the bearing bolts are not yet tightened, in such a manner that these surfaces subtend an angle of relatively slight magnitude, as viewed in cross section.

Abstract: A belt roll-up mechanism for a safety belt in a motor vehicle, in which the pull-out force required to overcome the force produced by the pull-back device is controlled over the entire pull-out range of the safety belt by at least one shifting member so as to have an essentially constant value or a value decreasing with an increased pull-out length, which value in the maximum case corresponds to the pull-back force effective at the end of a roll-up operation.

Abstract: A commercial vehicle driven by an injection internal combustion engine with a transmission including a hydrodynamic coupling or hydrodynamic torque converter having a by-pass clutch and with an engine brake actuatable by way of a switch; an adjusting mechanism which is operatively connected with the controller of the injection pump includes an actuating cylinder containing an actuating piston adapted to be acted upon by a pressure medium and controllable in dependence on the engine brake; means which are provided for influencing the adjusting mechanism during the operation of the internal combustion engine, are interconnected between the engine brake switch and the adjusting mechanism and, upon disengagement of the by-pass clutch shortly prior to reaching the idling rotational speed of the internal combustion engine, effect an automatic adjustment of the controller of the injection pump from the zero fuel feed position to the idling position.

Abstract: A heat-exchanger for gases of greatly varying temperatures, especially for use in gas turbines, which essentially consists of a collective space, for example, of a pipe-shaped collective space for the cold gas and of a metal recuperator which is formed by a large number of preferably U-shaped pipes which are welded or brazed into the collective chamber, whereby the hotter gases flow through between the pipes of the recuperator to give off some of their heat to the compressor air flowing through these pipes; one or several protective sheet metal members are arranged within the area of the connecting places between the pipes of the recuperator and the collective chamber which protect the welded or brazed joints against the hot gases.

Abstract: An installation for the automatic control of the light projection distance of motor vehicle headlights in dependence on the positional change of the vehicle body, in which in case of a positional change of the vehicle body toward one side when driving through a curve, an analogous control of the light projection distance of the headlight takes place in such a manner that, for example, with right-hand traffic and when driving through a right-hand curve, the light projection distance is decreased and vice versa is increased in a left-hand curve.

Abstract: A clutch disk for motor vehicle main clutches which is equipped with a disk member carrying the friction linings and torsionally elastically arranged with respect to a hub member, whereby for a multistage torsional elasticity, several springs or spring sets with different characteristics are arranged in windows of one of a hub flange or of the disk member and of a lateral sheet metal member rigidly connected thereto, which cooperate with correspondingly larger windows in the respective other part; friction damping devices are thereby coordinated to the springs, whereby one of the friction damping devices is operable in the idling range and the others are operable in the operating range and the start of operation thereof are determined by control means engaging in the corresponding windows or cooperating with the corresponding spring ends; at least three spring stages of continuously harder characteristics, one friction device for the idling range and two separate main friction devices with control members for

Abstract: A filter housing for accommodating at least one filter insert to filter lubricating oil, which is provided in the installed position with a geodetically upper assembly opening for inserting and interchanging the filter insert and with a geodetically lower base; the housing interior space is connected by way of two separate housing channels extending in the base, with one housing connection each for the inlet of dirty oil and for the outlet of clean oil; the housing interior space can also be connected with a housing connection separate from the housing connection for the inlet of dirty oil by way of a drainage connection adapted to be closed off by means of a closure device which can be opened at will.

Abstract: An installation for producing an air/fuel mixture for a mixture-aspirating internal combustion engine, which includes a fuel atomizer equipped with at least one fuel nozzle terminating in the air guide channel and traversed by the sucked-in air; certain surfaces arranged in the flow path of the mixture are thereby at different electric potentials whereby an electrode electrically insulated with respect to the fuel nozzle or nozzles is arranged in front of each of the nozzles with the potential difference applied between the electrode, on the one hand, and the fuel nozzle on the other.

Abstract: A safety belt system in a motor vehicle in which the belt band, when reaching a predetermined deceleration value, is tightened against the user with an initial load precluding injury by the use of a tensioning device actuated by an auxiliary force; the tensioning device is thereby constructed as a structural part which is adapted to be set into rotary movement and at least partly surrounds the belt band whereby the belt band runs through the structural part during normal operation in a substantially frictionless manner.

Abstract: An internal combustion engine with a return line for exhaust gases which connects the exhaust system with an inlet line provided with a throttle valve; the orifice of the return line in the inlet line is thereby located within the control cross section of the inlet line so that with a closed and substantially closed throttle valve, the orifice is upstream of the throttle valve whereas with an opened or substantially opened throttle valve, it is disposed downstream thereof.