Abstract: A brake system for combinations of vehicles in which a truck tractor and/or trailer (semi-trailer) is or are equipped with a supplementary electrical brake system. By the particular embodiment of the brake system, it is possible to couple a truck tractor, with or without an electrical brake system, to a trailer, with or without an electrical brake system, without infringing safety regulations.

Abstract: An electromagnetically actuatable valve is proposed, which serves in particular as a fuel injection valve for fuel injection systems of internal combustion engines. The valve includes pole pieces supported in a valve housing, which are joined by a yoke on which a magnetic coil is disposed. Remote from the yoke, the first pole piece has a first pole and the second pole piece has a second pole, the pole pieces are arranged to extend toward one another and define therebetween a gap in which a nonmagnetic stop may be disposed. The pole pieces have a continuously extending, concave surface which confront a ball which serves as both the armature and the movable valve element. The ball is urged toward a valve seat by a guide diaphragm supportedly attached to the housing at its circumference.

Abstract: An emergency operation device for a microcomputer-control system, in particular an idling charge regulating means in a motor vehicle, has a microcomputer which has both a signal output for emitting control signals generated by the microcomputer and a further output for emitting regular failsafe pulses. A failsafe circuit monitors the regular occurrence of the failsafe pulses. Upon the occurrence of a failsafe signal from the failsafe circuit, a reset input of the microcomputer is actuated, and at the same time the system is supplied via a logic block with an emergency operation signal from an emergency operation function generator.

Abstract: A central dehumidification system that will work in tandem with a furnace and a central air conditioner or as a single unit. The aforementioned central dehumidification tandem system is separate and independent of the air conditioner. The controls for operation of the central dehumidifier include a control unit which operates in conjunction with the air conditioner such that the central dehumidifier will not operate during operation of theair conditioner.

Abstract: An electromagnetically actuatable valve which serves to control a flow of fluid. The valve includes a valve housing and a core of ferromagnetic material as well as an armature, which actuates a valve element cooperating with a fixed valve seat. When a magnetic coil is excited, the armature is attracted toward a stop face on the end face of the valve housing. The stop face is defined on one side by an inner bore of the valve housing and on the other by the rim of a groove which is embodied in the end face. The circumference of the armature partially overlaps the groove.

Abstract: In a disclosed displacement detecting apparatus, a nut member retains a plurality of balls to circulate therein while in engagement with a helical groove of a screw shaft. The nut member is unrotatable and linearly movable, and the screw shaft is rotatable and linearly immovable. A rotation detector and a brake are attached to the screw shaft. The nut member may act as a piston of a cylinder in which the nut member is mounted, or may be connected to a separately provided piston of the cylinder.

Abstract: There is proposed a speed governor for a fuel injection pump for internal combustion engines having a governor lever for setting the fuel injection quantity and a governor spring assembly arranged to engage the governor lever and counter to which an rpm-dependent force acts. To compensate for manufacturing tolerances of the governor spring assembly, it is also proposed that the effective length of a spring of the governor spring assembly be varied by realizing one of the supporting parts of the governor spring assembly as a multiple-part element. The supporting part is embodied such that it can be displaced by an adjusting lever in order to vary the pre-stressing of the governor spring, and that the first part is extended coaxially through it out of the interior of the fuel injection pump and can then be rotated in order to adjust the effective length of the governor spring and then fixed in an intended rotational position.

Abstract: A fuel injection nozzle having an outwardly opening valve needle to which a piston is connected and on which a cap is mounted. The cap encloses a damping chamber, which communicates in a throttled manner, via the play between the piston and the cap, with the flow course of the fuel. Oriented toward the cap is a blocking shoulder attached to the housing, which shoulder restrains the cap, after an undamped pre-stroke (h.sub.v), relative to the valve needle, which continues to move, its continued movement being damped thereby. A spring acts via a spacer body upon the cap, the spacer body keeping the cap at a distance from the blocking shoulder corresponding to the pre-stroke (h.sub.v) in the closing position of the valve needle. As a result, the prescribed set-point value of the pre-stroke (h.sub.v) can be adhered to very precisely.

Abstract: An electrically controlled fuel injection pump is proposed, in which a portion of the discharger from the pump work chamber is varible by means of an electrically adjustable throttle.

Abstract: A restoring device for an adjusting element, which serves in particular for restoring a throttle device of an internal combustion engine. The restoring device has a first spring subject to bending, which is disposed on a bushing that is rotatably supported about a throttle valve shaft and with one end engages a step of the bushing, while the other end of the spring is hooked onto the housing on the throttle valve fitting. A lever is connected with the shaft. The first spring subject to bending acts in the restoring direction of the throttle valve. A second spring subject to bending is disposed in the bushing, one end of this spring engaging the bushing and the other end being supported on the lever. The spring force of the second spring subject to bending is less than that of the first such spring, so that the bushing, with a stop step, is rotated so far that the second spring has not influence in the restoring direction upon the throttle valve.

Abstract: A failsafe emergency operation device for the idling operation of motor vehicles, in particular for a digital idling charge regulation having a final control element triggered by an end stage circuit, which final control element, as a two-coil rotary adjuster, controls the cross section of an air bypass parallel to the throttle valve. A central computer (microprocessor, microcomputer) prepares a digital trigger signal for the end stage having a duty cycle which is variable depending upon the final control element position required. At the same time, at at least one position of the final control element, an end stage monitoring signal which is to be fed back is prepared and fed back to the computer, which via a separate shutoff stage for the end stage makes this end stage current-free whenever agreement does not exist between the two signals in terms of the duty cycle.

Abstract: An apparatus for producing tubular-pouch packages is proposed, which has a pair of endless conveyor belts subjected to underpressure in order to intermittently advance the tube. In order to attain a simple structure and low wear on the part of the tube-advancing device, the conveyor belts advancing the tube are driven continuously, and the underpressure exerted through these belts and effecting frictional engagement between the conveyor belts and the tube is intermittently controlled. A brake for the packaging material, which also works by means of underpressure, is associated with the arriving web of packaging material and is alternatively exposed to underpressure or to atmospheric pressure with the suction devices of the conveyor belts.

Abstract: A chuck key storage attachment for use with an electric drill for conveniently storing a chuck key. The attachment is retained against the body of the drill itself by a chuck key retention means which in turn retains the chuck key in the attachment. The chuck key storage attachment provides for several sizes of aperture for accommodation of the various sizes of chuck keys available in the market place.

Abstract: An apparatus for shielding and protecting an air flow rate meter from air column fluctuations arising in an intake tube from the aspirating action of an internal combustion engine is proposed. The apparatus includes at least one elastic diaphragm disposed on the intake tube downstream in the vicinity of the air flow rate meter. The diaphragm divides a damping chamber communicating with the intake tube downstream of the air flow rate meter from the atmosphere and by its elasticity causes a virtually constant pressure to be maintained in the damping chamber.

Abstract: A fuel injection pump for internal combustion engines is disclosed, in which a profiled governor rod of a supply quantity adjusting member, the latter controlled by a final control element, is extended at its end toward the final control element out of the pump housing and is supported in a displaceable manner at the point where it emerges. For the sake of sealing the support point, a cylindrical slide bearing sheath is secured in the pump housing at the location where the governor rod emerges from the pump housing. A cylindrical governor rod guide means which is joined to the profiled governor rod and closes it off or surrounds it in a sealing manner is guided displaceably, with the least possible play, in the slide bearing sheath.

Abstract: A multi-circuit pressure medium brake system in which a pressure control valve is used which can be triggered in a multi-circuit manner. One of the controls is effected electrically and generally advances ahead of a pressure-medium control, so that when the system is functioning properly, the pressure-medium control remains without effect. Various modifications for the pressure control valve have been set forth and a plurality of combinations of switching members for meeting various pressure regulating conditions have been set forth. The multi-circuit pressure medium brake system is preferably applicable to motor vehicles.

Abstract: A transmission for agricultural tractors in which a front wheel speed increasing transmission part (12) is disposed forwardly of a main transmission part (8). An input shaft (13) and an output shaft (15) of the speed increasing transmission part (12) are arranged coaxial with a front wheel drive output shaft (14a) of the main transmission part (8).

Abstract: The invention relates to a fuel injection nozzle for internal combustion engines, in which a damping piston is located on the end of the valve needle, which valve needle opens in the flow direction, remote from the injection side. The damping piston cooperates with a cap that is mounted on the damping piston and spring-loaded in the direction of opening, and the cap and the damping piston define a damping chamber. A support ring which is stressed in a positively engaged manner by the closing spring of the injection nozzle is disposed on the valve needle. In the spatial segment between the damping chamber and the support ring, an encapsulated induction coil attached to a tubular segment surrounds the valve needle, and the support ring serves as the armature of a transducer embodied by the injection coil and at least one part, serving as the yoke of the encapsulation.