Abstract: A sealing element between the storage body and a gas channel of a regenerative heat-exchanger, which consists of a slide layer of graphite, of a metallic support bar and of a connecting layer disposed therebetween; the support bar includes a bottom portion and two side portions which laterally surround in part the slide layer whereas the connecting layer is applied to the inner sides of the bottom portion and the side portions with the slide layer embedded in the connecting layer.

Abstract: A motor vehicle driven by an internal combustion engine which includes an electrical accumulator arranged in the engine space and an air pump for blowing-in air during the after-treatment of the engine gases; the accumulator is encapsulated on all sides by a protective housing leaving an intermediate air space with respect to the accumulator housing while two line connections are provided at the protective housing which are as far away from one another as possible in the flow direction; one line connection is connected with the suction side of the air pump while the other line connection is operatively connected with a protected place in the vehicle which during operation is at least approximately at the outside temperature.

Abstract: A mounting support for exhaust gas systems of motor vehicles, in which one or more exhaust pipes are secured to a holding member, and this holding member is suspendingly retained in rings consisting of elastic materials, which in their turn, are suspended from mounting means fixed on the vehicle; the rings are provided with bumpers arranged on the inside of the ring-form, retained by webs and made in one piece with the rings; the bumpers limit the inward or upward spring deflection of the rings.

Abstract: A foldable top for a motor vehicle, especially for a passenger motor vehicle, which includes windows of elastic material within the transition area of the rear, downwardly sloping roof surface; the windows which are bordered, extend arcuately shaped toward the side surfaces; the lower border of the windows is provided with at least one reinforcement that leads when folding together the foldable top, to a fold configuration which remains always the same and lies outside of the reinforcement.

Abstract: An elastic pivotal bearing support of a structural part carrying out exclusively angular movements, particularly in individual wheel suspensions of motor vehicle wheels, which absorbs forces directed axially and/or radially to the pivot axis and which transmits the same into a frame; the pivot bearing support is thereby equipped with two coaxial sleeves, namely, an inner sleeve and an outer sleeve which are under radial prestress from the presence of a rubber-elastic material with a layer thickness sufficient to absorb shocks; one sleeve is connected with the frame and the other with the structural part, whereby the two sleeves immovably adhere at the contact surface of the rubber-elastic material during pivotal movements of the structural part; at least one axial collar is provided which is moved along with the structural part and at least one further corresponding axial collar is provided which is moved along with the frame; a layer of rubber-elastic material of shock-absorbing thickness is arranged between

Abstract: A reciprocating piston engine with at least one working space that is radially delimited by a cylinder liner retained in a cylinder block, and with at least one cylinder head which is sealingly clamped to the top side of the cylinder block and which contains liquid-cooled control parts axially delimiting the working space on one side and channels for the working medium and the cooling medium that are sealed off with respect to each other; the cylinder head thereby includes a bottom plate and side walls and possibly partition walls and the like which act reinforcingly on the bottom plate, whereby the elastic yieldingness of the bottom plate is constructed as uniformly hard as possible within the area of the circumferential configuration of the cylinder liner by weakening the reinforcing action of these walls within certain areas.

Abstract: An air deflection structure for sliding roofs of motor vehicles which is constituted by an air foil profile pivotally arranged underneath the sliding roof in the vehicle cross direction within the forward area of the sliding roof; the air foil profile extends in its pivoted-up operating position under a negative angle of attack of about 5.degree. to about 30.degree. and projects only slightly beyond the roof contour in its operating position.

Abstract: A vane-pump or motor which includes a rotor equipped with vanes slidable within at least approximately radial slots and with an endless cam surface which surrounds the rotor and together with the same forms a sickle-shaped working space; the cam surface is so shaped that it includes a radially outwardly directed inclination with respect to a circular cam concentric to the center of rotation of the rotor which forms the suction area and in other circumferential areas, it includes a radially inwardly directed inclination, forming the discharge area; two base plates are provided which axially sealingly enclose the rotor together with the vanes and the cam ring and which axially delimit the working space or spaces; internal channels connect the suction or inlet area of the working space with the feed line and the discharge area of the working space with the discharge channel; an unobstructed working medium supply is also provided out of the channel subjected to the higher pressure level which leads to the slot bo

Abstract: A retention mechanism for the passengers of motor vehicles which is able to deflect in the load direction when reaching a predetermined load, preferably under energy absorption; the deflection movement of the retention mechanism is thereby transmitted to the seat backrest in the sense that the coordinated seat backrest yields in the backward direction.

Abstract: A safety steering for motor vehicles with a plastically deformable deformation member arranged between the steering wheel and the upper end of the steering spindle and with an automatically inflatable gas cushion arranged on the inside of the deformation member which is automatically inflated when the deceleration of the vehicle exceeds a predetermined value.

Abstract: A rotary piston internal combustion engine of trochoidal construction which includes a housing casing with hollow spaces for a cooling media disposed between housing inner and housing outer walls, whose outer wall is provided with a cooling medium channel; a polygonal piston rotates within the housing casing and slides along its inner wall, and at least one cooling medium bore constructed as nozzle is provided which branches off from the cooling medium channel, is arranged in the housing outer wall and is directed toward the hottest area of the housing inner wall.

Abstract: A sign, for example, in the form of the company's trademark which is constructed as radiator figure adapted to be recessed and tilted by a force of predetermined magnitude; the radiator figure thereby normally projects above the body of the motor vehicle, particularly above the radiator or engine hood and is so constructed that the base of the radiator figure is mounted in a recess provided in the engine hood and carries a joint which permits a tilting over of the radiator figure into the recess so that neither parts of the radiator figure nor of the base thereof project beyond the edges of the recess.

Abstract: A window lifter of a motor vehicle actuated by an auxiliary force whose drive is adapted to be engaged electrically; the actuating member for engaging or closing the electric switches for the up and down movement of the window is thereby constructed at the same time as crank arm for the mechanical manual actuation of the window lifter in case of emergency.

Abstract: An installation for securing pivotal hoods or flaps, particularly engine hoods for motor vehicles, which are unlatched from the interior space of the vehicle and can be released externally from a locked or stop position by a lever secured at a safety hook which itself is pivotally mounted spring-loaded at the hood and cooperates with a fixed counter-member; after the release of the interior latching mechanism, the safety hook is pivoted into a locking or stop position by an upwardly directed movement of the hood, in the course of which the lever pivotally mounted at the safety hook is displaced out of a normal, covered-off position into an externally accessible position for the disengagement out of the stop position.

Abstract: A bearing support for a rotatable regenerative heat-exchanger in disk form which is supported centrally on a support shaft by way of a roller bearing that includes drum-shaped roller bodies; the drum-shaped roller bodies are thereby several times longer than they are thick while the inner bearing surface of each roller body is formed by a concave surface portion, preferably constituted by a section of the bearing shaft itself, which has a smaller curvature as compared to the curvature of the drum-shaped roller bodies.

Abstract: A door for vehicles which includes an outer door panel and an inner door panel and is equipped with a lowerable window; the inner door panel thereby extends through the plane formed by the lowered window in such a manner that above the area where it passes through this plane, the inner door panel extends on the side of this plane facing the interior space of the vehicle and below this area, it extends on the side of this plane facing the outer door panel; within the area where it passes through the plane of the lowered window, the inner door panel is provided with an aperture for the passage of the lowerable windowpane.

Abstract: A load-dependent two-circuit brake for vehicles, especially for trucks, busses or the like which includes a load-dependent control valve arranged in the first brake circuit containing the rear-wheel brakes while another control valve is coordinated to the second brake circuit containing the front wheel brakes which has a predetermined transmission ratio and which is adapted to be acted upon by the control pressure in the first brake circuit in such a manner that the transmission ratio is adapted to be changed in the same sense as the control pressure in the first brake circuit.

Abstract: An installation for preheating the combustion air for the multi-fuel operation of air-compressing and auto-igniting injection-type internal combustion engines with poorly ignitable fuels, for example, gasoline, during idling and partial loads, which essentially consists of an injection nozzle for fuel and of a spark plug arranged in the suction pipe. The spark plug and injection nozzle are thereby combined into a structural unit as an insert body which includes a cover structure partially covering the spark plug and the injection nozzle while a protective plate member is provided in the path of the combustion air within the suction pipe for shielding the flame.

Abstract: A regenerative heat-exchanger of a gas turbine whose ceramic heat-exchanger disk is coaxially surrounded by a metallic toothed rim under formation of an annular space in which are arranged springs; the springs are constituted by spring packets of cup springs which are guided on both sides in concave recesses in two webs arranged in the circumferential direction on entrainment plates which surround the lateral surfaces of the toothed rim and are non-rotatably connected therewith.

Abstract: An engine exhaust brake for a motor vehicle operated with an Otto-engine, which upon its engagement causes the closing of the exhaust gas line by means of a throttle device and the opening of the throttle valve controlling the mixture supply; a gas-air mixer is thereby arranged upstream of the throttle valve whose gas supply is controlled by the output stage of a membrane-controlled gas-regulator whose vented side is connected with the atmosphere by way of an air line and preferably also by way of a filter protection; a control valve is also arranged in the air line which is controlled by the engine-brake engaging mechanism and which upon engagement of the engine brake connects the vented side of the output stage of the gas regulator with the engine suction pipe, whose vacuum causes the closing of the gas supply to the gas-air mixer.