Abstract: A brake pedal path simulator, with a restoring device which exerts a restoring force with a progressive force-path characteristic curve on a pedal. The restoring device includes at least two permanent magnets, whose mutually repelling poles are oriented toward each other, one of which magnets is connected to the pedal and is guided in a direction of the resultant repelling magnetic force of the other magnet.

Abstract: In a throttle device for a pressure control apparatus, the return line inside a pressure control valve or in the line course outside it is provided with a cross-sectional constriction that throttles the flow. This cross-sectional constriction is variable automatically, as a function of the flow rate and hence of the prevailing pressure, in such a way that at a low flow rate a small flow cross section and at a high flow rate a large flow cross section results. It is thus possible to design the return line pressure as high as possible over a wide range of the flow rate and to keep the pressure difference between the inflow line and return line slight and thereby to minimize the noise production in the pressure control valve.

Abstract: The invention relates to a method and an apparatus for the production of a plate with depressions or apertures which is coated on at least one side. Plates of this kind are employed, for example, as passage-containing plates in hydraulic blocks for ABS/ASR/VDC systems, the depressions or apertures serving as passages or holes and the coating being a seal. In this invention the depressions or apertures are formed in an uncoated plate and then the plate is coated. As a result, the life of the machining tools is extended, the machining tolerances become smaller and the rate of machining can be increased.

Abstract: A unit comprising a drive motor and a radial piston pump is proposed, in which unit an armature of the drive motor and an eccentric of the radial piston pup are carried by a common unitary shaft which has three bearings. A three-bearing mounting, known from the prior art, for a shaft of this kind consists of three ball bearings, which are expensive. The invention proposes to replace the ball bearing situated at the greatest distance from the eccentric in the prior art by a slide bearing, and to design the latter as a sintered metal bearing and to impregnate it with a viscous lubricant. The unit according to the invention can be used as a component of an anti-lock device of a vehicle brake installation or of a drive-slip control device acting on driven wheels.

Abstract: An apparatus for governing the idling rpm of an internal combustion engine, in order to control a quantity of operating fluid to be delivered to at least two flow lines of the engine. According to the invention, the first valve closing member and the second valve closing member are disposed axially displaceably relative to one another and coupled via a slaving device in such a way that in the closing position of the first valve closing member, the second valve closing member is likewise closed, and the second valve closing member is adjustable in the valve opening direction only after attainment of a predetermined opening position of the first valve closing member. The closing properties of the apparatus can be adapted as required by means of the selection of the disposition and design of the springs that act upon the valve closing members.

Abstract: Overpressure valves for packaging containers are supplied in a roll, transported in this form to a packaging machine, separated here and attached to packaging containers by means of an adhesive coated surface. For this purpose the overpressure valves have a layer of emulsion bonding on their underside. To prevent individual layers of the roll from sticking together, the overpressure valves have an adhesive-repelling layer on their top side. The overpressure valves are connected to one another in one piece and in a row, and are separated consecutively in a packaging machine.

Abstract: A measuring element for determining the flow rate of the aspirated air of an internal combustion engine comprising a substrate, which is divided by two parallel separating slits of equal length into three prongs on which temperature-dependent resistor tracks are disposed. The measuring element has separating slits of optimized shape. To lessen the notch action and reduce tension peaks at the ends of the slits, one separating slit has a segment with a curved course, and another separating slit has a slit end embodied as an enlargement. The novel measuring element is especially suitable for determining the flow rate of the aspirated air in internal combustion engines.

Abstract: Bottles are closed with capsules whose free end segment is crimped over the top of the bottles. To avoid abrasion and turbulence, the end segment of the cap is deformed by a simultaneous, uniform upsetting of its entire circumference in a female die. An apparatus for carrying out the invention has a female die that is split into two parts, with cylindrical bores and with a constricting rib on a bottom portion which fits around the neck of the bottles. The rib has a concavely rounded side upon which the end segment of the cap, is thrust against and is deflected toward the bottle. The female die is split into two jaws that can be pivoted toward one another and whose opening and closing motion is coupled to the motion of an axially displacable male dies that displace the capsules in the female die for sealing the capsules onto the bottle.

Abstract: An electromagnetically operated injection valve including a return spring having upper and lower ends, the upper and lower spring ends are bent to extend axially and parallel with a valve's longitudinal axis. The upper end of the spring engages a recess of a fixed setting bushing, and the lower end engage in a recess of a needle sleeve so as to prevent twisting. Due to the position of a valve seat body relative to the valve closing member the same angle is maintained throughout the life of the assembly, the adaptation process of both components is reduced to a single running-in phase. The new injection valve is particularly suitable as an injection valve for fuel injection units of mixture compressing spark ignited internal combustion engines.

Abstract: A pressure regulating device is proposed which regulates the fuel pressure in a fuel injection system for internal combustion engines. The pressure regulating device includes a pressure regulating valve which has a valve diaphragm fastened in a valve housing and arranged to define a fuel chamber which communicates via inlet pipes with a fuel distributor line. Protruding into the fuel chamber is a valve seat body joined to the valve housing, on one end of which body a valve seat is formed and the other end of which engages an outlet conduit which protrudes through the wall of the fuel distributor line remote from the pressure regulating valve and is tightly joined to this wall.

Abstract: An air flow meter that includes a filter or flow rectifier disposed in a retaining aperture of a collar in a bypass channel such that a second end face of the filter rests against one end of a slide-in member in which a resistance element is held in position without any edges that disturb the air flow in the remainder of the bypass channel. The air metering device is designed to be used to measure the air sucked into an air intake tube of an internal combustion engine.

Abstract: The invention refers to a length measuring device, with which a working length of a work piece may be determined for milling machines and sawing machines. The measuring device comprises one unit with a movable buffer which is laid out and secured parallel to the table on a level and vertical to the cutting tool of the machine. An electrical sensor device operable relative to an electrical ruler is synchronized to move with the buffer and the sensor device is electrically connected with an indicator to provide a read out of the measurement.

Abstract: A method and apparatus for controlling the fuel supply of an internal combustion engine in which the primary fuel injection valve control pulses are derived on the basis of signals from sensors which monitor various engine variables, e.g. intake air flow rate, induction tube pressure, engine speed and/or engine and air temperatures and in which the fuel supply is entirely interrupted during the condition of engine overrunning (negative output torque). After the termination of engine overrunning, the normal fuel quantity which would be supplied on the basis of prevailing sensor signals is intentionally increased for a predetermined length of time to compensate for engine cooling during overrunning. This is done by increasing the pulse length of the injection control pulses. The apparatus includes transducers and circuits for recognizing the condition of overrunning and circuitry for supplying temporarily lengthened fuel control pulses.

Abstract: A light retro-reflective responser and data modulator arrangement which, in particular, allows expected incident radiation to be reflected back with no contour field within the operating field and which enables an optical modulator of very small size to be used. It comprises a retro-reflective system formed by an optical objective and in the corresponding focal zone, a lens, an electronically controlled optical modulator, and a reflective mirror, the two latter items being produced as layers deposited on at least one face of the lens and preferably on the plane face of a plano-convex lens.