Abstract: An installation for venting fuel tanks, in which a flow-interrupting chamber is provided in the upper part of the tank, to which are connected two vent lines; each vent line thereby extends from its connection with the flow-interrupting chamber at first toward the respective tank end and then back toward the opposite tank end; a vent line in communication with the atmosphere is also connected with the flow-interrupting chamber within the center area thereof.

Abstract: A method and apparatus for manufacturing a twisted ceramic turbine wheel from an electrically conductive or electrically non-conductive ceramic mass with the aid of spark erosion or of ultrasonic machining and with the aid of profiling tools used therewith which are correspondingly matched to the desired profile shape, by means of which the pressure side and the suction side are to be worked; the two profile surfaces, i.e.

Abstract: A self-locking differential gear for motor vehicles with a rotating differential gear housing which accommodates the differential gears which in turn engage with driven gears arranged on the axle shafts; means for locking the differential gear which are coordinated to each driven gear and which are operatively connected with the driven gear are in the form of an inertia member that is rotatable and axially movable by means of a thread with respect to the driven gear against the action of return means while the inertia member is operatively connected with double-acting locking means.

Abstract: A shifting mechanism for a motor vehicle transmission comprises first and second stationary pivots transversely spaced apart. A range shifting fork is pivotally movable about said first pivot to a plurality of range control positions, which include a slow range position, a fast range position, and a no-load position. An axle shifting fork is pivotally movable about said second pivot to a plurality of clutch control positions, which include a clutch-engaging position and a clutch-disengaging position. A bridge extends transversely to the shifting paths and has one end portion connected to the range shifting fork and a second end portion connected to the axle shifting fork. A first pivotal joint is spaced from said first pivot and pivotally connects said first end portion of said bridge to said range shifting fork. A second pivotal joint is spaced from said second pivot and pivotally connects said second end portion of said bridge to said clutch control fork.

Abstract: A method and apparatus for the control of the safety distance of a vehicle with respect to preceding objects wherein various measurements and controls are effected so as to provide control magnitudes for enabling prevention of a collision of the vehicle with an object.

Abstract: A door lock for motor vehicles, in which a lock cylinder is connected with a lock tumbler by way of an insertable entrainment rod, whereby the lock cylinder is inserted together with a door handle into an aperture provided in the outer body panel of the door; an anti-theft device which is connected with the lock cylinder, engages from behind a locking projection provided at the door.

Abstract: A drive aggregate for electric vehicles, especially for trackless street vehicles, which is equipped with an electric shunt motor provided with field current control and with a change-speed transmission having at least two forward speeds connected behind the electric shunt motor; the electric shunt-wound motor thereby has a relatively high rated rotational speed in relation to its maximum rotational speed and a relatively reduced field-weakening range whereby the change-speed transmission is an automatic transmission connected with the electric shunt motor by way of a speed-reducing gear while the oil pump of the automatic transmission is driven by an electric motor coordinated thereto which operates at substantially constant rotational speed.

Abstract: A lateral body panel covering for a passenger motor vehicle which covers the framework within the area between the front and/or rear vehicle ends and a lateral door opening; the area between a wheel casing and the door opening is thereby covered off by an independently detachable covering member which preferably consists of a non-metallic material.

Abstract: An aggregate space for the battery, wiper motor, relays and similar vehicle aggregates arranged within the area of the engine space of a motor vehicle, which is subdivided from the engine space, properly speaking, by at least one partition wall and is constructed as a space that is closed but readily accessible; the space is also adapted to be vented by inlet and discharge openings which are arranged at special locations to utilize a high pressure drop.

Abstract: A longitudinal bearer constructed as hollow profile of a motor vehicle frame, which is equipped with introduction places for introducing chassis forces into the frame and into the longitudinal bearer and with a longitudinal deformable bearer section arranged outside of the introduction places and dissipating impact energy; the longitudinal bearer section which by reason of different wall thicknesses has a resistance to buckling that increases in the direction toward the vehicle center, is transversely subdivided over its length at least into two bearer pieces connected with each other by circumferential seams; the wall thickness of a respective bearer piece becomes greater and/or the wall quality thereof becomes better in the direction toward the vehicle center from bearer piece to bearer piece than the wall thickness and/or the wall quality of the bearer piece disposed in front thereof.

Abstract: A split gas generator, especially for an air-compressing internal combustion engine of a motor vehicle, in which a catalyst supporting the split gas reaction is arranged in a container; the components of the split gas production flow through the catalyst in the longitudinal direction, while air-guide channels embedded in the catalyst are traversed by the exhaust gases and by the fresh air in a direction opposite to the direction of the split gas flow in the catalyst; the air-guide channels are in heat-transferring connection with the catalyst.

Abstract: An automatic change-speed transmission for vehicles with a drive connection between a transmission output shaft adapted to be coupled with vehicle wheels and a secondary servo-force generator for the emergency supply of aggregates of the transmission control and shifting system operating with a servo-pressure, which drive connection is adapted to be disconnected by a disengaging mechanism, and with a permanent drive connection between a transmission input shaft adapted to be driven by a driving engine and a primary servo-force generator for the normal supply of the aggregates; a servo-motor for the disengaging mechanism which is adapted to be displaced into a disengaging position disconnecting the secondary servo-force generator from the transmission output shaft is brought into its working position by a control device operating in dependence on the servo-force of the primary servo-force generator when the actual value of the servo-force lies below a necessary operating value.

Abstract: A method and apparatus for determining the upper dead-center position in piston engines, in which the crankshaft angle corresponding to the maximum compression pressure is determined by a pressure measurement and by the addition of a correcting factor that corresponds to the thermodynamic loss angle conditioned by heat-transfer and leakage losses.

Abstract: A liquid-cooled internal combustion engine with a control of the cooling medium temperature of its cooling medium circulation by a thermostatically operating mixing valve which includes a mixing chamber in open communication with the suction connection of a circulating pump interconnected in the cooling medium circulation, a return chamber connected by way of a radiator return line with the cooling medium outlet of a radiator and adapted to be closed off with respect to the mixing chamber by way of a return control valve, and a by-pass channel connected with the cooling medium outlet of the internal combustion engine and adapted to be closed off with respect to the mixing chamber by a by-pass control valve; the cooling medium outlet of the mixing valve is connected by way of a radiator inlet line with the cooling medium inlet of the radiator while the return chamber is connected by way of a vent connection with an auxiliary chamber fed with cooling medium by the circulating pump for the formation of a liquid

Abstract: An independent wheel suspension for motor vehicles, especially for passenger motor vehicles, which, with respect to a vehicle axle, includes at least one triangular guide-like wheel guide member retained on the side of the body in two elastic pivotal connections and an approximately U-shaped stabilizer which is elastically pivotally connected on the side of the body within the area of its web disposed between its arms extending generally in the vehicle longitudinal direction; the wheel guide members which belong to the two sides of the vehicle are thereby secured on the side of the body at the web of the stabilizer by way of one of their mutually corresponding pivotal connections.

Abstract: A monolithic catalyst structure for purifying exhaust gases particularly in motor vehicles in which the monolithic catalyst is connected with tubularly shaped metallic support members by way of a sintered intermediate layer and in which the support members carry the monolithic catalyst inside of a tubularly shaped catalyst housing through which flow the exhaust gases.

Abstract: A motor vehicle bumper-covering for bridging the upper gap between the vehicle body and the bumper structure is supported at the vehicle body, and consists of an upper covering strip combined with two lateral or side parts forming pocket-shaped members for covering or enclosing the ends of the bumper. The covering strip and the lateral pocket-shaped parts are a soft elastic material which is securely connected with the vehicle body by fasteners, such as threaded screws or bolts, acting in conjunction with fastening plates of a hard material. A preferably construction of the pocket-shaped lateral portions of the bumper covering includes a generally C-shaped cross-sectional profiled configuration with the opened side of the configuration facing the vehicle body; the C-shaped profiled lateral pocket member being attached to the vehicle body by a holding plate clamping the edges of the pocket-like member to the wall of the vehicle body in conjunction with a fastening member.

Abstract: Lateral bottoms for headrests, for seat cushions in motor vehicles or the like, in which the lateral bottoms consist of textile material or plastic material and are enclosed on the outside by a cording; the cording itself is made as an endless plastic injection-molded ring provided along the outside with weldable tabs or flaps which are welded together with the bottom with the aid of a correspondingly constructed high-frequency welding machine.

Abstract: A passenger-space ventilation system for motor vehicles, especially for passenger motor vehicles, in which the used-up passenger-space exhaust air, after its discharge out of the passenger space but prior to its discharge into the outside air stream flowing about the vehicle, is conducted past heated-up vehicle parts for purposes of cooling the same.

Abstract: A liquid-cooled internal combustion engine with a control of the cooling medium temperature of its cooling medium circulation by a thermostatically operating mixing valve which includes a mixing chamber in open communication with the suction connection of a circulating pump interconnected into the cooling medium circulation, a return chamber adapted to be closed off with respect to the mixing chamber by a return control valve and connected with the cooling medium outlet of a radiator by way of a radiator return line, and a by-pass channel connected with the cooling medium outlet of the internal combustion engine and adapted to be closed off with respect to the mixing chamber by a by-pass control valve; the cooling medium outlet line of the mixing valve is connected by way of a radiator inlet line with the radiator inlet of the radiator while the return chamber is connected by way of a vent connection with an auxiliary chamber fed with cooling medium by the circulating pump by way of the radiator inlet line fo