Abstract: A coil spring for a motor vehicle wheel suspension system having two spring segments spaced apart in the axial direction along the central spring axis and a reinforced connecting piece extending parallel to the central spring axis for connecting the two spring segments. The two spring segments and the connecting piece form a unitary structure.

Abstract: An optically stable resonator producing a laser beam which by the use of a converging and of a diverging optical element is subdivided into an amplifier part with large beam diameter and small energy density and into a mode filter part with small beam cross section and correspondingly small Fresnel number all with a short structural length of the resonator. The advantage of the present invention resides in the high beam quality of the produced beam which contains predominantly only the fundamental mode, and in the small thermal load of the participating elements, especially of the decoupling window. The subdivision of the stable resonator according to this invention into an amplifier part and into a load filter part opens up to this resonator type power output ranges which were precluded heretofore by reason of a maximum permissive thermal load of the decoupling window.

Abstract: A device for detecting a trailer coupled onto a tractor vehicle which, incorporates the rear or brake or license plate illuminating lights of the trailer and by corresponding combination of the signals applied at a logic element, an output signal for triggering the indication "trailer coupled" is achieved.

Abstract: In a motor vehicle with an all-wheel drive, which is equipped with a thrust and anti-lock control device, each wheel brake has assigned to it a pressure modulator, within which a control-pressure space, into which the outlet pressure of a brake unit can be fed, and an outlet-pressure space, to which a particular wheel brake is connected, are limited by a control piston. This control piston ensures the hydraulic separation of the control circuit from the outlet circuit. Two drive pistons supported on the control piston limit, within the modulator housing, two drive-pressure spaces which, by being connected alternately to the outlet of an operating-pressure source, can control pressure build-up and pressure-reduction control movements of the control piston.

Abstract: A process for the ignition of a regenerative soot filter adapted to be ignited in which the temperature, respectively, heat quantity necessary for the ignition of the filter is produced by charging a storage container located ahead of the soot filter or in connection with the soot filter which contains a hydride-forming alloy or a hydride-forming material. The necessary hydrogen is taken from a second storage container with a different alloy storing hydrogen, which is brought to a temperature by the exhaust gases so that a sufficient hydrogen pressure results therefrom. After the ignition, the second storage container is cooled off and the hydrogen is again conducted from the first storage container heated by the exhaust gases back into the second storage container so that the ignition operation can be repeated with renewed heating of the second storage container.

Abstract: In a windshield wiper installation for vehicles, the windshield wipers are lowered into a rest position behind an engine hood after the wiper motor is turned off in that a support arm which supports the wiper motor, the wiper gear and the wiper arm is displaced changing in height along at least one toothed rack guidance by an adjusting motor acting on a pinion.

Abstract: The proposed safety-belt arrangement in a vehicle has a three-point belt, for which an upper deflecting fitting, together with a guide part of a belt feeder arm, is retained on the vehicle center column so as to be vertically adjustable on a common support. The belt lug of the feeder arm can consequently be made as small as possible, while still accommodating passengers of varying sizes.

Abstract: A defroster air vent arrangement is provided for uniformly distributing the air flow discharged from a defroster onto motor vehicle windshields which defroster air vent arrangement allows for adequate defrosting of the entire windshield in an open and in a partially closed positioning of the defrosting device. The vent arrangement is formed with a defroster nozzle connected to an air distributor housing. A defroster nozzle is provided with a wall web dividing the defroster nozzle into air guiding ducts of unequal cross-sectional areas and the air distributor housing is provided with an adjustable covering device providing for a selectively independent regulation of the flow of the defroster air into the air distributor housing and through to the windshield.

Abstract: A firearm (1) comprises a housing (2), a barrel (3), means defining a chamber (5), and a firing mechanism including a trigger (10). The chamber (5) is defined by a chamber member (4), which is separate from the barrel (3) and is mounted in the housing (2) for reciprocation between a firing position and a loading position transversely to the axis of the barrel. In the firing position, a forward end of the chamber (5) coaxially adjoins and is open to the barrel bore and the rear end of the chamber (5) is closed by a closing wall (7) of the housing (2). In the loading position, both ends of the chamber (5) are exposed on the outside of the housing and spaced from the barrel and the closing wall.

Abstract: A process is provided for optimizing the storage capacity, based on weight, of a hydrogen storage device containing a hydride-forming alloy. A corresponding hydrogen storage device is also provided wherein the storage device is designed to operate under a pressure of 100 to 300 bars, and the weight of hydride-forming alloy contained within the device is about 0.8 to 2 kg of hydride-forming alloy per liter of internal volume. As an added benefit attendant this process and device, the hydrogen gas stored in the device is purified thereby.

Abstract: A force responsive, variable length push rod for connecting the motor and windshield blade of a windshield wiper unit. The variable response push rod includes a pair of members connected at one end to the motor and windshield blades respectfully and overlapped at the other end. Each member includes a plurality of lobes extending to the area between the opposed members and an elastomer adheres to the lobes and fills space between the plurality of lobes to form push rod. Interdigitized lobes and elastomer define the force characteristics of the push rod.

Abstract: An ignition coil (1) for internal combustion engines comprises a magnetic core (4) of the core- of sleeve type, around the main core of which the primary and secondary winding being insulatingly enveloped with a cast material is arranged, the end regions of the main core being connected with each other via a magnetic path located outside the two windings, and having mounting members attached to the magnetic core (4) for mounting the ignition coil (1) to an automobile body. In order to bring the heating of the windings to an equal level and to reduce the heating of the windings, the mounting members are formed of a mounting plate (8) with mounting surface (9) and of at least one frame member (10, 11) integrally formed with the mounting plate (8) which envelopes the magnetic core (4) in a form-locking manner. The frame members (10, 11) can be expediently placed for mounting angularly on the ignition coil (1) and are pivotable in abutment with the surface of the magnetic core (4).

Abstract: A fuel-injection pump with a rotational speed governor for an internal combustion engine which for purposes of lubrication is connected to the lubricating oil circulatory system of the internal combustion engine. The lubricating oil which is thereby removed from the lubricating oil circulation is conducted by way of a pressure oil line and an inlet bore in the pump housing to a plunger cylinder of the injection pump and is controlled by the plunger sliding within the plunger cylinder by way of an aperture into a discharge bore terminating in the governor housing. From the governor housing, the lubricating oil flows over into the cam shaft space and is returned from the same by way of a return opening to the lubricating oil circulation of the internal combustion engine.

Abstract: A shifting arrangement for the shifting between a single-axle standard drive and an all-wheel drive, having a first clutch for the locking of a central differential gear and a second clutch for the connecting and disconnecting of one vehicle axle, actuated by first and second pressure medium control elements against the force of a spring and having a shift valve controlled by an electronic control unit, to either supply working pressure or relieve from pressure the control element. The shift valve can be controlled by the control unit in such a way that, when there is a shifting into the shifting step for the standard drive, the clutch torque of the clutch of the differential gear at least approximately increases only to the extent to which the clutch torque of the other clutch decreases. As a result, a sudden rise of torque is avoided at the vehicle axle that is driven in a standard drive.

Abstract: A self-optimizing control method for optimizing the fuel/air ratio under non-steady conditions in an internal combustion engine is described; in this method, a probe is provided both before and after the catalyst. Control quantities and the time during which the post catalyst probe shows an undesirable fuel/air ratio are stored for certain specified engine-operating conditions in the non-steady range. When the same engine operating condition is repeated, reference is made to the stored control quantities and time and the control quantity is varied in the direction of the correct fuel/air ratio. The time now obtained is compared with the stored time and, if the time has decreased, the new control quantity and the new time are stored. The control values are iteratively corrected by repeating these procedures, when the same engine operating condition reappears, until the time reaches a minimum.

Abstract: A process is described for producing a diesel fuel/water emulsion for a diesel engine in which, as a function of the operating condition of the engine, water and diesel fuel are mixed at different quantitative proportions and supplied to the engine. The water and the diesel fuel separately are led practically to the intake side of the injection pump and are mixed only in the pump cylinder. The non-injected highly pressurized excess quantity of fuel is stored temporarily in an accumulator and is again supplied to the injection pump during the next intake stroke. The process makes it possible to produce a very fine water/fuel mixture and in addition to keep the volume of the fnished water/fuel mixture low, so that when the quantitative proportion is changed because of the inertia of the system, the new fuel/water mixture is available at the point of consumption (injection nozzle).

Abstract: A control device of a component vehicle route guidance system, the system comprising an on-board section having a navigation computer, and a vehicle-installed display for indicating the driver information data of the system. The control device is constructed as a portable hand-operated unit including a route computer, operating means and its own display, allowing the preselection of the route functions to be performed outside the vehicle. The device interfaces with the guidance system by plugging it into the on-board section in the vehicle. Various functions are enabled depending on which position the control device occupies in the on-board section.

Abstract: A receiving arrangement for a steering column that can be adjusted in its height and inclination comprises two receiving plates fixed at the vehicle, one locking plate respectively having an oblong hole being assigned to each receiving plate via a plane toothing, a bearing shaft supporting the steering column being guided through said oblong hole into one of two directions that extend vertically with respect to one another, while the opposite locking plate is slid along its receiving plate and by means of its toothing, is locked by means of a clamping arrangement.

Abstract: The application relates to a lock having a closing cylinder for a drop door of a motor vehicle, with the free end of the rotor being provided with a locking projection. To enable the drop door to be slammed shut even when the lock is closed, a ring is provided which can be turned through a certain angle about the rotor longitudinal axis against spring force and is mounted on the end of the rotor remote from the insertion opening for the key. A rotary latch body which is acted upon by a spring is coupled to the ring in hinged manner. The rotary latch body, in a base area, has a central passage opening for the free end of the rotor and a recess for the passage of the locking projection at a certain angular position. The rotary latch body has a projection with a bevelled side face which interacts as a mating piece with an inclined plane fixed to the vehicle to be movable against spring force when the door is slammed shut, to then be returned by the spring force to the locked position.

Abstract: In a one-piece seat shell which consists of at least two individual seats and which, on every outer seating edge, has a closed channel which runs from the front side of the seat up to the upper side of the seat back and is set back from the rear side of the seat shell and which is provided on the channel base side with reinforcing portions for accommodating fastening means, a further channel, formed like the outer lying channel, is also located in the transition area between the two individual seats and is likewise closed on the front side.