Abstract: A longitudinal housing wall for an internal combustion engine is formed with an elongate channel defined by two confronting parallel surfaces. A rod extends in said channel over at least two-thirds of the length of said channel and is coupled to said wall so as to be resiliently movable relative to said wall and capable of absorbing energy of flexural vibration at a predetermined frequency from said wall.

Abstract: A reciprocating internal combustion engine comprises an engine block, which includes cylinders, cylinder heads, pistons, connecting rods, a crankshaft and the mainshaft bearings for the crankshaft. That engine block is held in an outer pan by means of annular supporting elements, which are provided at both ends of the engine block and are coaxial to the crankshaft and insulate against a transmission of structure-borne noise. The engine block is sealed to the upper edge portion of the outer pan only by an oil seal. The outer pan consists of two parts, which are connected by screws. To prolong the service life of the annular supporting elements and to reduce the manufacturing costs, the outer pan has a parting plane which contains the axis of the crankshaft. The supporting elements are secured in the outer pan merely by being clamped between the two parts of the pan.

Abstract: An equipment for recognizing misfiring, which is particularly suitable for permanent installation in a motor vehicle. By means of high-pass filters coupled to the plug leads between the spark distributor and the spark plugs, the change to the voltage at the spark plugs associated with the initiation of the ignition spark is sensed. The high-pass filters are so arranged that they only send on a needle-shaped output pulse signal to an analysis circuit if it appears with the change in voltage associated with the spark front. The analysis circuit generates appropriate output signals with reference pulses generated in time with the ignition pulses. The high-pass filters are preferably arranged as simple RC filters whose capacities are coupled to the plug leads by means of peripheral electrodes, which at least partially surround the insulation coatings of the plug leads.

Abstract: A method and an apparatus for controlling the position of an actuator contemplates generating a signal indicative of actuator position, generating a signal indicative of desired actuator position, comparing the actuator position signal to the desired actuator position signal, and generating an error signal from the comparison. The error signal is provided to a control unit, and an adaptation signal is generated in an adaptive system. A control signal is provided by the control unit, and is combined with the adaptation signal to provide an adapted control signal. The adapted control signal is provided to the actuator to control it.

Abstract: A bearing support of a differential gear in an undivided axis housing with two substantially coaxial roller bearings arranged at approximately the same distance to and on different sides of the plane of the axes of rotation of differential bevel gears; each of the roller bearings supports a bearing neck of the differential gear housing within a bearing opening of the axle housing, whereby at least one of the roller bearings includes an outer race which is inserted directly into its bearing opening and is enlarged in its outer diameter, with respect to the corresponding standard diameter.

Abstract: A windshield for motor vehicles equipped with a windshield wiper system, which, for the improvement of the wiped field, includes in its lower area strip-shaped profile members whose side facing the bottom edge of the windshield form together with the windshield surface a water-collecting channel open in the downward direction. In order to prevent the rising of water from non-wiped areas in the lower part of the windshield onto wiped higher areas, provision is made according to the invention that the upper edge area of each profile member extends along the lower edge area of the associated wiper field.

Abstract: A bumper arrangement for an automotive vehicle is disclosed which includes a bending-resistant bumper support resting on parts affixed to the vehicle, an undulating leaf spring extending over the length of the bumper arranged in front of this bumper support, and a cover which can be locked to the bumper support and which serves to hide the leaf spring from view. The leaf spring is fashioned integrally with the bumper support, and is preferably made of a reinforced synthetic resin. The wavy windings of the leaf spring are aligned in the support zone extending transversely with respect to the automotive vehicle, in the longitudinal vehicle direction, and, in the laterally wrapped-around end zones of the support, approximately in the transverse vehicle direction. Energy absorbing elements and impact buffers are interposed between the undulations of the leaf spring and between the bearing support and the adjacent section of the leaf spring.

Abstract: An air guide ring arrangement is disclosed for guiding air flow around an axial fan of a liquid cooled internal combustion engine having a radiator through which air is drawn by the fan. To facilitate construction of a minimal sized air gap between the air guide ring and the fan blades, the air guide ring is supported by a gibbet or bracket arm fixed to the engine and by a spoked support wheel rotatably borne at the outer circumference of the fan hub.

Abstract: A water conduit for water accumulating in lateral areas of the windshield of a motor vehicle. The conduit includes a main water channel formed by a molding extending at a spacing in front of the windshield and by another residual water channel located farther towards an outside. The main water channel leads without substantial deflection in a transverse direction of the vehicle to a trough or interruption, with the channel extending in the roof approximately in parallel to a longitudinal axis of symmetry of the vehicle. The residual water channel lies within an envelope line of a contour of the motor vehicle and is continued above lateral door cutouts of the motor vehicle to a rear portion of the motor vehicle.

Abstract: The invention relates to the mounting of a radiator on the bodywork of a motor vehicle, in a manner such that, in its upper region, the radiator is suspended in a manner permitting pivoting about a transverse axis of the vehicle, while the lower region is held by means of a retaining clip. In the event of a frontal blow in the radiator, the fixing involving the retaining clip releases, and the radiator swings out, towards the rear.

Abstract: An exhaust duct system for a track-guided vehicle powered by an internal combustion engine having a fixed section extending through the interior of the vehicle and a section projecting above the roof of the vehicle for channeling exhaust gases into a force-vented exhaust channel. Transverse movements of the vehicle, with respect to the exhaust channel, are allowed for by providing for lateral movement of the transfer pipe on the roof-side section of the exhaust duct system. A connecting element forms a transition between the transfer pipe and the pipe ends of the fixed exhaust duct section. This connecting element is sealed with respect to the surroundings and is movable about a longitudinally extending pivot axis. The connecting element can be a pleated metal bellows or two pipe shells arranged concentrically to each other and to the pivot axis.

Abstract: Method of and apparatus for control of the heating capacity of a hydrodynamic brake which is associated with a liquid-cooled internal combustion engine, in the cooling medium circuit of which heat exchangers, a cooling medium circulating pump and the hydrodynamic brake acting as a heater are arranged. A regulation of the state of charge of the working chamber of the hydrodynamic brake occurs by a pressure regulator valve.In the case of a method and apparatus for controlling the heating capacity taking an available drive power into consideration, the pressure regulator valve which influences the heating capacity is controllable as a function of the load of the internal combustion engine.

Abstract: The invention relates to a motor vehicle with an internal-combustion engine, with a heatable payload space and with a pipe flowed by air and leading into the atmosphere, which is divided into two pipe branches. A first heat exchanger flowed by the waste gases of the internal combustion engine is arranged in one of these pipe branches, while a second heat exchanger is arranged in the pipe downstream of the conjunction of the two pipe branches. The latter heat exchanger is flowed on the secondary side by a liquid serving to cool the internal-combustion engine, so that waste gas heat can be transmitted to this liquid, or cooling heat can be discharged to the exterior, as a function of heat incidence and heat demand. In certain embodiments, two heat exchangers are arranged in series in the pipe leading to the atmosphere, one operatively interposed in the engine cooling water circuit, the other operatively interposed in the engine cooling oil circuit.

Abstract: In a multi-disc clutch or brake, several lamellae in the form of annular discs cannot only be fixed essentially non-rotatably, relative to a lamella carrier fixed in terms of rotation in relation to one of the two clutch or brake parts, by means of a releasable positive connection but can also each be supported radially exclusively at an individual point on the lamella carrier, each by means of its own resilient clamping means, the clamping means being retained on the lamella carrier. At least one central annular gap located, in the peripheral direction of the axis of rotation, between two engaging teeth of the positive connection and open in the two directions of the axis of rotation is limited radially in one directions by a cylindrical shell portion of a lamella and in the other direction by a cylindrical shell portion of the lamella carrier. The engagement surface of the clamping means, used for the purpose of support, is located in the annular gap and interacts with the shell portion of the lamella.

Abstract: A heating system for a dual-mode vehicle, such as a bus equipped with both electrical and internal combustion engine drive systems, is provided with an electrically powered heat exchanger and an auxiliary fuel heater serially connected in the engine cooling water flow line. The electric heat exchanger provides a non-polluting source of heat for the vehicle's interior within electrified portions of the drive route. The auxiliary heater supplies heat when the vehicle is standing (i.e., parked) with the engine shut off in non-electrified portions of the route. An electric water pump is also connected in series with the electric and fuel heaters. During periods of electric drive operation, the electric heater is activated when the engine cooling water temperature falls below a predetermined level even if no heat is required for the vehicle interior.

Abstract: Wheel for motor vehicles of the type which is cast or forged in one piece and composed of a light metal alloy and possessing a rim and a wheel disc with a radial clearance between the rim and the periphery of the wheel disc. Ventilation apertures are defined by the radial clearance and radially extending connecting webs bridging same. In order to provide an outer appearance which is aesthetically pleasing and to limit soiling of the wheel by brake friction material while facilitating a strong light weight construction the ventilation apertures extend radially so they are not visible as open windows from the front, a stiffening ring at the wheel disc forms a connection base for the connecting webs, which ring is severed at spaced locations during manufacture.

Abstract: A pressure operated control installation, especially for automotive vehicles, which includes a pressure source and a servo member controlled through a control block. The control block includes a logistor, a control element coupled with a control unit, and a bypass line with a throttling arrangement. The pressure conducting inlet of the logistor is connected through the bypass line to a control inlet of the logistor and the control unit controls a connection between the control inlet of the logistor and a return line. At least two control blocks are provided with a control outlet of the logistor of the first control block and a pressure conducting inlet of the logistor of the second control block being connected to the servo member.

Abstract: Apparatus for measuring or monitoring the diameter of rod-shaped workpieces comprises two driven and interdigitating pinion rollers for rotating the workpiece about its longitudinal axis and at least one pair of mutually opposite measuring gages adapted to be urged against the workpiece and connected to an electronic evaluating device. To permit a rapid measurement of the workpieces which is independent of the attention and carefulness of an operator, the workpiece is fed via an inclined trough to the pinion rollers so that the workpiece engages an axial stop. The workpiece is then urged against the pinion rolls by a pressure-applying roller, which is radially movable into and out of engagement with the workpiece. By spring force and/or a pressure fluid the measuring gages are jointly moved into and out of engagement with the workpiece when the latter lies on the pinion rolls and is axially located by the axial stop.

Abstract: A wheel cover for wheels of a passenger motor vehicle which includes a wire ring with outwardly bent lug-shaped members distributed along the circumference thereof, which are adapted to engage in an annular recess in the wheel rim for holding the wheel cover in place; the lug-shaped members are held in radial and axial directions within a guide structure at the wheel cover; each guide structure is provided with an internal radial abutment in such a manner that the wire ring, in the non-mounted condition of the wheel cover, is under prestress; covers elastically connected to the wheel cover are associated with the guide structures on the outside thereof whereby the covers extend over at least a portion of the radially outermost area of each lug-shaped member.

Abstract: A power steering system operates with a servo-valve, which responds to the wheel angle of a hand steering wheel, for the operating pressure of a steering system servo-motor and with a modulating valve operating as a function of at least one parameter, in particular the travelling speed. The modulating valve produces a reaction pressure dependent on the parameters by reducing an output pressure derived from the operating pressure.