Abstract: A wiper arm in motor vehicle windshield wiper installations having, attached on a wiper shaft to be driven, a bearing part, the contact force of which directed towards an associated windshield in an operational position is generated by the action of a traction spring, while the wiper arm is positionable out of the operational position into a raised position in which it is anchored wherein an additional bracing member is arranged between an extension of the bearing part and the wiper arm for secure anchorage, particularly in the case of a raised position oriented at an acute angle to the operational position of the wiper arm.

Abstract: In the case of a headrest provided with an arrangement for securing the end position of a support rod, where the catch effect for the removal of the headrest with both hands can be temporarily cancelled, and the catch, when the support rod is pushed in, is automatically brought back into the position where it is ready to catch, a two-armed lever is disposed at the lower end of an operating rod which takes up two defined end positions. In one end position, the free end of the lever is swivelled out of the path of motion of the support rod and the catch is in effect whereas in the other end position, the catch effect is cancelled and the free end is swivelled into the path of motion of the support rod.

Abstract: In a drive system for automobiles having two driven axles, a differential gearing between the axles serves at the same time as distributor gearing. A fluid friction clutch is associated with the differential gearing as an optional differential lock thereof. In order to guarantee that the distribution of the driving torques to the two axles can be changed either arbitrarily by hand or automatically on the basis of various operational data, each of the two parts of the fluid friction clutch, adapted for being coupled with each other, is driven from one of two output members of the differential gearing. A preferably continuously adjustable change-speed gearing is associated with one of the two output members. At least one piston drive for acting upon the change-speed gearing and a control unit lodged in an actuating line for the piston drive, as well as a governor for processing operational data of the vehicle or the engine thereof can also be provided.

Abstract: A windshield wiper for motor cars with a wiper arm which terminates at its free end in a U-shaped hook, while a connecting piece articulated to a wiper blade and preferably consisting of plastics is slidable and anchorable between the members of the U. In order to ensure a play-free connection even in the longitudinal direction of the wiper arm and/or wiper blade, a fastening yoke, which is articulated to the connecting piece at a pivot axis thereof, in its closed position, engages externally and clamps around the U-shaped hook and tensions the connecting piece towards the wiper arm.

Abstract: An injection system for an internal-combustion engine has a plurality of separate inlet ports provided for each cylinder of the engine, and an intake pipe encompassing the inlet ports for each cylinder. The intake pipe has a subdividing web wall in the region of the cylinder head having a mixing chamber into which fuel is injected by an injection nozzle. The subdividing web wall subdivides the intake pipe into separate intake pipe sections and includes shot channels for communicating fuel from the mixing chamber to each of the separate intake pipe sections. By this arrangement, a constant, thorough mixing of the fuel/air mixture is achieved even at lower load and upper speed ranges of the engine.

Abstract: A lock assembly is disclosed for locking pivotable hoods, flaps or the like of motor vehicles, which lock assembly has a displaceable closing cylinder, a handle key, a detent pawl and a rotary latch. To ensure that a closure of this type is adjusted quickly and accurately during assembly, the closing cylinder and handle key on the one hand and the detent pawl and rotary latch on the other hand are arranged in separate housings, and the two housings have guides in which they are displaceable relative to one another on overcoming a frictional force.

Abstract: An exhaust gas filter for Diesel engines that consists of a filter block made of a porous ceramic material, and a plurality of ducts extending through said filter block that extend in the flow direction of the exhaust gases. The ducts in each case are alternately closed at their upstream or their downstream end, whereby the exhaust gases are forced to penetrate a filtering separating wall between two ducts. The closing means at the downstream end, are arranged so that they are staggered with respect to one another in the flow direction; in particular they are staggered by about 5 to 150 mm. The staggered arrangement of the closing means reduces the danger of a thermal damage to the filter block during the burning-off of the deposited soot.

Abstract: In order to be able to cover a large tolerance range with a sliding cover for a motor vehicle, which is sealed by way of a circumferential hollow chamber seal, the hollow chamber seal is provided with a bead which is supported only locally at the end face of a rail retaining the hollow chamber seal under a roof area. During the occurrence of excessively large, oversize tolerances, the hollow chamber seal can then enter into interstices formed between local raised portions of the end face when the deformation capability of the hollow chamber is exhausted.

Abstract: An improved control apparatus provides a feedback control system for engaging selectively a clutch of a vehicle. The vehicle includes an engine, an engine shaft, and a drive train comprising a clutch assembly including clutch input and output members, a drive shaft, and a wheel assembly. The apparatus includes a servo-motor for engaging and disengaging the clutch members, a first sensor for detecting an angular velocity of the clutch input member, a second sensor for detecting an angular velocity of the drive shaft, and a third sensor for detecting the instantaneous torsional moment transmitted by the drive shaft to the wheel assembly. The apparatus further includes a feedback control unit for attenuating vibration in the vehicle drive train.

Abstract: An elastic support system is disclosed for a fuel system of motor vehicles of the type equipped with a mixture-compressing internal-combustion engine and an electrically driven fuel pump, a fuel filter and an accumulator, in which case at least the fuel pump is to be arranged in proximity of the tank at the underbody. A roller vane pump is used as the fuel pump which operates with heavy pulsations and therefore, in addition to its mechanically caused operating noises, also generates pulsation noises. It therefore must be disconnected or isolated from the underbody with respect to vibrations. For this purpose, it is suggested by the invention to provide, between the fuel pump and a suspension member fastened at the underbody of the motor vehicle, a connecting element that is held at the fuel pump and can be suspended at the suspension member.

Abstract: Sliding and lifting roof for vehicles, having a rigid cover which in its closed position covers a roof opening in a fixed roof surface. The cover is mounted on guide rails extending in a direction parallel to the side edges of the roof opening, and can be selectively tilted so as to lift its rear edge above the fixed roof surface, or rearwardly slidably displaced below the fixed roof surface, after lowering of its rear end below the fixed roof surface. A vertically adjustable rain gutter is provided which is elevated when the cover is in its tilted and close positions, which rain gutter underlies the rear edge of the roof opening and, upon lowering, can be rearwardly displaced together with the cover. The rain gutter is connected with a tilting device which, when the cover is raised, causes the rain gutter to assume an inclined position such that the forward edge of the rain gutter forms a splashboard which projects upwardly above the rear edge of the roof opening.

Abstract: In an auxiliary planet-wheel gear for a motor vehicle, a drive drum fixed in terms of rotation relative to an outer central wheel, a shift sleeve connecting an inner central wheel to a brake located outside the drive drum, and an intermediate drive shaft fixed in terms of rotation relative to a planet carrier are arranged concentrically relative to one another. With reference to the main gear axis, the radially outer drive drum and the shift sleeve are each supported by a roller bearing relative to the centrally arranged intermediate drive shaft. The roller bearing of the shift sleeve is arranged offset axially in the direction of the brake in relation to the central wheels. Finally, the planet carrier is connected to an annular bearing extension for supporting the roller bearing of the drive drum. To obtain a construction which is short in the direction of the main gear axis, the drive drum has only a single roller bearing.

Abstract: In a four-stroke internal combustion engine for driving a motor vehicle, a throttle flap holding back the exhaust gases during vehicle braking is arranged in the outlet channel. Each of the outlet valves controlled by a cam shaft via rockers has assigned to it a limiting device by means of which the stroke of the outlet valves is limited during braking to an amount which prevents the outlet valves from closing. To increase the engine braking power in an internal combustion engine of this type, the stroke of the outlet valves is limited to an amount at which the opened outlet valves achieve a braking effect, and there is a directional valve which is adjustable as a function of the brake-pedal travel and by means of which the throttle flap and the limiting devices can be actuated.

Abstract: This invention relates to a cooler shroud detachably mounted to a heat exchanger of a liquid-cooled internal-combustion engine which includes a fan ring surrounding a fan driven by the internal-combustion engine. In order to be able to remove a cooler shroud that is arranged in narrow space conditions easily and without dismantling other components, the fan ring is detachably fastened to the cooler shroud.

Abstract: A divided flywheel for reducing vibrations transmitted from an engine to a power transmission line has an input and output part connected, respectively, to the engine and the transmission line. The input and output parts are coupled by coupling spring arrangement which allows for a degree of relative rotation of the parts. A plurality of attenuators (e.g., stop springs, friction linings, etc.) are arranged to take effect following selected predetermined angular displacements of the input and output parts. A preferred arrangement includes a connecting part, which is frictionally attached to one of the input and output parts and which engages the other of the parts following relative rotation by a first predetermined angular displacement, and a stop spring arrangement which is engaged following relative displacement of the parts by a second predetermined angular displacement.

Abstract: A mechanical injection pump governor is provided having a first adapting device which acts in the lower speed range up to the full-load characteristic curve of a supercharged diesel engine for adapting the delivery quantity of the injection pump to the fuel requirement of the diesel engine. The adapting device contains a spring-loaded diaphragm which is acted upon by a supercharge and is connected to the control rod of the injection pump. The lift of the diaphragm, when supercharge pressure is applied, is limited by a full load stop which determines the adapting end point. To improve the torque profile of the diesel engine, a second adapting device is provided which adjusts the full load stop. By means of this second adapting device, the full load stop can be displaced against an additional spring force when supercharge pressure is progressively applied so that the delivery quantity of the injection pump increases between the adapting end point and the rated speed of the diesel engine.

Abstract: A liquid-cooled cylinder head is provided for an internal-combustion engine having a water space reaching from the cylinder head bottom to a cylinder head ceiling and having a control space located above it. Supporting walls extend in the cooling water space transversely between sections of the cylinder head bottom on the side of the combustion chamber. For reinforcement of the cylinder head housing, a longitudinal rib is provided in the water space within the cylinder head ceiling. In the planes of the supporting walls, rib webs are provided that overlap into sections of the cooling water space that are adjacent the combustion chamber. In the control space, a crossconnection is provided consisting of longitudinally and transversely extending ribs. The resultant cylinder head exhibits a reinforced structure having superior resistance to applied force.

Abstract: An arrangement for the ignition of ignitable mixtures, especially a spark plug for producing sparks in otto-engines, which is constructed according to high-frequency standpoints and in which at least one condenser arranged in the spark plug is adapted to be charged to a high voltage and is adapted to be discharged as much as possible exclusively in the breakdown phase of the starting phase of the ignition spark by way of a booster gap also arranged in the spark plug and a main gap formed by an ignition electrode with respect to a ground electrode, whereby the breakdown voltage of the booster is higher than the breakdown voltage at the main gap. In particular, for achieving a compact constructive form, satisfactory from a manufacturing point of view, and for optimizing the ignition and flame development, the condenser and the main gap are connected in a series circuit in a preferred embodiment of the invention, with respect to which the booster gap is connected in parallel.

Abstract: A cylinder lining is inserted into a cylinder block of an internal-combustion engine with an upper collar of the disposed in a recess in the cylinder block. To hold the lining in place, a ring is prestressingly inserted from above into an opening in the collar between the liner and the cylinder block recess wall. In order to prevent radial movements between the collar of the lining and the cylinder block, the ring that is formed as a clamping ring and the interior surface of which is developed as a conical surface with the same slope is pressed in between the conically formed outer wall of the collar of the lining and the recess.

Abstract: The mass of a vehicle is determined by recognizing that the natural oscillations in the transmission line of a motor vehicle and the mass of the motor vehicle are in a one-to-one relationship if the instantaneous transmission ratio remains unchanged. To determine the natural oscillations, i.e., the rate of fluctuations, a computer records engine speed signals of a speed transducer and calculates therefrom the actual vehicle mass, taking into account the instantaneous transmission ratio, which can be determined for example by comparing the engine speed to the vehicle speed or sensing the engaged gear of the gear box.