Abstract: An apparatus for determining the filling quantity of lubricating oils in drive installations comprising a timing member which activates a filling level pickup only after a predetermined time of several minutes following the shutoff of the drive installation, this pickup yielding an output signal only if two superimposed sensing elements transmit different responses. This provides a precise information regarding the actual quantity of lubricating oil. The output signal may be dependent upon an operating temperature cyclic filling may be effected at appropriate timed periods.

Abstract: A tire pressure control system having a pressure switch installed in a rim, which pressure switch, as part of a tuned circuit, damps, across an air gap, an HF transmitter, installed in a wheel web and having downstream analysis electronics, the pressure switch having a diaphragm pressure cell with a reference pressure, the diaphragm of which reference cell is subjected on one side to the reference pressure and on the other side to the tire pressure. A valve installed in the pressure switch makes it possible to adjust the reference pressure so that, when filling the tire, the desired tire pressure is simultaneously retained as the new reference pressure in the diaphragm pressure cell for the tire pressure control system.

Abstract: A fuel feed system of an internal combustion engine, in which for damping fuel oscillations which are excited by the closing of injection valves and which occur amplified in a predetermined rotational speed range, a damper is attached to the distributor pipe opposite to a regulator. The damper is of the same type of construction and size as the regulator and forms together with the same a resonator-antiresonator system, whereby the fuel column oscillates to and fro with low flow losses between the regulator and damper.

Abstract: A non-contacting sealing arrangement for sealing two counter-rotating shafts with the aid of a housing having a tire-casing-like shape which surrounds at least one centrifugal disk connected for rotation in unison with one rotatable shaft and laterally surrounded by the casing-like part with a narrow gap; the casing-like part is arranged eccentrically to the axis of the shaft on which the centrifugal disk is mounted in order to thus assure a return feed for the liquid sealing medium, such as oil, to bearing places. The invention enables alternate pressure loads and is particularly suited in applications between at least two bearing chambers of aircraft propulsion units.

Abstract: A liquid cooling system for a super-charged internal combustion engine in which the turbocharger is connected to the forced circulatory cooling system effective during the operation of the engine. In order to prevent an overheating of the turbocharger after the internal combustion engine is turned off, the turbocharger is equipped with a further cooling circulatory system maintained by thermo-syphoning action. A volume expansion tank present in the cooling circulatory system of the internal combustion engine is thereby used as heat exchanger for cooling off the cooling liquid, which is constructively matched for this particular application.

Abstract: A cylinder block for an internal combustion engine which includes dry liners each having a flange, and in which cooling slots are provided between two cylinders that start from the separating plane facing the cylinder head and are in communication with the cooling water circulation; the wall thickness of the cylinder block between two cylinders is thereby so dimensioned that the circumferential surfaces of the flanges at the liners are either tangential with a cooling slot; or with larger flanges in the radial direction, the flanges abut at one another above the cooling slot.

Abstract: A sealing arrangement of the cylinder head with respect to the cylinder block by means of a flat seal which is constructed as intermediate plate and extends from the edge of the cylinder bore also up to its cylinder axis; essentially only circular openings for disk valves are provided in the intermediate plate so that the latter represents a thermal insulation of the combustion space with respect to the cylinder head.

Abstract: A motor vehicle transmission which consists of a change-speed transmission and of an axle gear, is made usable by a special configuration and arrangement of the gear-shifting mechanism without modification for front engine and rear engine drive. For that purpose, the shifting rods disposed horizontally one above the other of the individual transmission speeds are operable by way of the shifting fingers of a vertically arranged shifting lever which is pivotally connected with the also horizontally disposed shifting shaft which is inserted into the change-speed transmission housing either at the bottom or at the top.

Abstract: A safety installation for single track vehicles, especially motorcycles, which enables the driver of the motorcycle to be thrown over an obstacle, particularly in case of lateral impact against a passenger motor vehicle; a support element with a deflection surface is provided for that purpose ahead of the driver; the support element, which can be constructed as tank-mounted carrier, is rotatably supported to the motorcycle frame about an axis of rotation which extends as a cross axis which is disposed ahead of and below the deflection surface.

Abstract: A non-contacting seal between a rotating part to be sealed and a stationary part, in which the rotating part includes a coaxial disk which is surrounded by a stationary collecting channel axially closely adjoining the disk but without contacting it. The collecting channel forms a spirally shaped hollow space in the circumferential direction of the rotating part, with a sealing medium return line connected to the hollow space within the area of enlargement of the hollow space. A seal, however, may also be installed between the rotating part and the fixed part.

Abstract: In a heating and/or air-conditioning system for motor vehicles with a temperature sensor in the head space and a temperature sensor in the leg space as component parts of an interior space temperature regulating installation, the temperature sensors are so connected to the regulating installation in dependence on the outside temperature that at low, respectively, high outside temperatures, the influence of the leg space, respectively, of the head space temperature sensor on the regulating installation dominates.

Abstract: For accommodating belt buckle parts coordinated to a motor vehicle back seat, recesses are provided in a foldable armrest and in particular in the side surfaces thereof. Each recess includes a bottom area constructed as a deflection surface so that when folding out the armrest, the belt buckle parts constructed as belt buckles are deflected laterally and thereby assume a readiness position, in which the coordinated belt buckle latch can be readily inserted. The belt buckle parts are pulled by means of elastic means in the direction toward the bottom area of the recesses so that when the armrest is folded back, the belt buckle parts are again automatically transferred into the recesses.

Abstract: A connecting line between the compressor of an exhaust gas turbocharger and a suction pipe of an internal combustion engine. For the compensation of tolerances and for the installation simplification, the connecting line includes at least two nested pipe sections disposed one within the other and cooperating by way of sealing means; the pipe sections are connected with each other by means of a disengageable device including a bridge.

Abstract: A high pressure transducer, particularly for ballistic pressure measurements, with a sensor part, with a sealing part formed thereon and with a hollow mounting screw surrounding the sensor part with a clearance. The sensor part can be inserted together with the sealing part into a threaded mounting aperture in the component to be examined, whereby the sealing surface of the sealing part comes into sealing contact with a seating surface of the mounting aperture. The hollow mounting screw presses on the sealing part and produces the force necessary for sealing. The sealing surface of the sealing part is located somewhat ahead of a membrane portion while the sealing part is connected relatively elastically with the sensor part by means of a narrow web.

Abstract: A crossed-bellows controller which includes four bellows arranged in cruciform. The bellows are surrounded by a movable baffle ring which serves as a baffle plate for a nozzle. A frame-shaped cage is provided within the baffle ring, with the cage being connected through one pair of bellows with a central member. The baffle ring is connected with the cage through the other pair of bellows.

Abstract: An especially air-flow-cooled two-cylinder, four-stroke-cycle, double-piston engine (1) for the preferred use in motorcycles has for each cylinder (32) a camshaft (14) disposed horizontally on top in the cylinder heads (33) for the drive of valves (37 and 38) disposed in vertical V-positions. An intermediate shaft (4) is connected in the drive of the camshafts (14) which is driven by the crankshaft (3) with 1:2 down-gearing, with said intermediate shaft (4) being arranged parallel below the crank shaft (3), being driven at its front end--in driving direction--, carrying a pump wheel (12') of a lubricating-oil pump (12) and having two 1:1 drives (13) leading from its rear end in one tunnel each (36) of the cylinders (32) and cylinder heads (33) to the camshafts (14). The camshafts (14) are arranged in the V-space of the valves (37 and 38) and are in driving connection with the valves (37 and 38) by means of rocking levers (39).

Abstract: In a gear-type change-speed transmission with synchronized reverse speed, the corresponding pair of gears consists of a loose gear which is adapted to be clutched with the driving shaft and of a fixed gear of the output shaft; an intermediate gear is adapted to be engaged between the loose gear and the fixed gear by means of a pivot lever; the intermediate gear meshes constantly with the loose gear, is brought in a first shifting phase into engagement with the fixed gear over a small partial area of its tooth width load-free and during the further engagement of the reverse speed is engaged into the fixed gear over its full tooth width. Only thereafter the loose gear is coupled torque-transmittingly with the input shaft.

Abstract: A control system for the engagement and disengagement of exhaust gas turbochargers, in which the charging air pressure acts as control magnitude on a first control end face of a slide valve member against the force of a spring; in order to prevent the effects of the strong pressure fluctuation of the charging air pressure, which occur during engagement and disengagement of an exhaust gas turbocharger, on the shifting behavior of the control device, the slide valve member includes a second control end face, on which a second control pressure acts temporarily; the second control pressure and the first control pressure and the working medium for the control system may be formed by the charging air pressure so that no additional pressure sources are required; however, by the use of a spring biased valve the second control pressure may additionally be used for the filling limitation during starting and in the range of lower outputs of the piston driven internal combustion engine.