Abstract: A method and an apparatus are proposed for control of gear changing under load in a transmission of a vehicle driven by an internal combustion engine. In all gear changing instances, the hydraulic pressure upon the frictionally engaged elements is established with a constant slippage time proportionally to the sum of the engine torque and the product of the engine speed and a constant factor. The constant factor depends on the slippage time and on the gear changing instance (FIG. 1).

Abstract: The invention is directed to an arrangement for a fuel metering system for an internal combustion engine. The arrangement includes a computer unit for generating a fuel metering signal in dependence on the operating parameters of the internal combustion engine. The arrangement includes an oxygen sensor and a filter to which the sensor signal is applied, and a subsequent evaluation circuit for additionally influencing the fuel metering signal, preferably in a multiplicative manner. The filter output quantity and engine speed information are utilized together for an additional additive speed-dependent and an additive speed-independent influencing of the fuel metering signal via at least one control function. This arrangement permits a nearly ideal anticipatory control of the fuel metering signal which has an advantageous effect on the engine operating behavior and the exhaust gas quality, in particular with the internal combustion engine in a state of transition and the lambda control circuit deactivated.

Abstract: An electro-magnetically operable valve serving especially as fuel injection valve for a fuel injection device of internal combustion engines. The valve is composed of a valve housing, in which a magnetic coil is disposed around a core. The core has a concavely formed stop face against which, during excitation of the magnetic coil, a ball rests. The ball serves as an armature and movable valve part and cooperates with a fixed valve seat. The radius (r.sub.1) of the concavely formed stop face of the core is larger by about 0.1 to 1 mm than the radius (r.sub.2) of the ball. This causes a sufficient hydraulic cushion between the end face of the core and the ball when the ball is attracted toward the core upon magnetic energization of the latter and thus prevents a bouncing movement of the ball or its sticking to the core, when the ball is biased toward the valve seat upon de-energization of the core.

Abstract: To provide for essentially instantaneous stable operation of an electrical circuit, including an internal R/C feedback circuit, upon connection to an interruptible power supply source (+U.sub.S, G), the circuit includes an additional or auxiliary input terminal (14) which is connected to a series-capacitor network, including a series capacitor (C1, 19) serially connected between the additional terminal (14) and a power terminal of the power supply, and a shunt capacitor (C2, 18) connected between the additional terminal (14) and ground or chassis of the power supply; and wherein the capacity value relationships of the series and shunt capacitors are so selected with respect to the voltage of the power supply that the additional terminal will have a voltage corresponding to at least approximately the operating point (U.sub.V) impressed thereon upon connection of the power supply means.

Abstract: An arrangement for cleaning fuel has a housing, a deflecting member in the housing and forming an annular gap extending between a fuel inlet and a fuel outlet and also a water storing chamber separated from the fuel inlet, and electrical water-level-indicating device including a rod-shaped impulse generator extending through the deflecting member into the interior of the water storing chamber and a one-piece float located in the water storing chamber and cooperating with the impulse generator, and a water discharge device provided with a throttle valve which includes a water discharge opening in the bottom of the housing and a throttle valve member cooperating with the water discharge opening, wherein the float forms the throttle member and has a guide opening and a closing surface cooperating with the water discharge opening, the guide opening goes completely through the float and the rod-shaped impulse generator extends into the throughgoing guide opening in condition of the closed throttle valve so as to g

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: A versatile system for preventing spinning of driving wheels, especially for commercial road vehicles, is provided by a braking control system in which a logic system responds not only to positive slip (overdriving) of each driven wheel, but also to negative slip (overbraking) thereof and, likewise, not only to over-acceleration, but also to excessive deceleration of the driven wheels. The cycle of control is started by an over-acceleration signal and terminates by the timing-out of a control phase in which hydraulic brake pressure is reduced. Within a control cycle, brake pressure builds up for a driven wheel in response to the simultaneous occurrence of any one of the following four pairs of conditions at that wheel: (a) presence of over-acceleration and of negative slip; (b) presence of over-acceleration and of positive slip; (c) presence of over-acceleration and absence of negative slip, and (d) presence of over-deceleration and of positive slip.

Abstract: To counteract the effects of centrifugal force on internal blades or vanes positioned in gaps (31) between adjacent claws (22, 23) of a claw-pole rotor (R) of a claw-pole alternator, a plastic sleeve (33) is fitted over the field winding (20) and has cooling fins or vanes or blades (32) projecting radially therefrom, at an inclination with respect to the axis of rotation of the rotor, and located between the inclined faces of the claw poles. The end portions (36, 37) projecting beyond the sleeve may be straight (FIG. 4) or the end portions (38, 39) may be curved (FIG. 5). Preferably, a curable casting compound is cast within the sleeve and secures the winding (20) in position, the sleeve being fitted in form of a circular bandage over the winding.

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: 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: A device for punching holes in a surveyor's chain and in metal pieces used for repairing the chain and for riveting together the punched chain and metal pieces comprising an elongated vertical housing having an elongated vertically oriented opening extending transversely therethrough, an upper vertical bore extending from the top of the housing into the vertical opening, a lower female die element received in the lower portion of the opening and having a flat horizontally extending recess therein whose width is equal to that of the chain to be repaired, the female die element also including a pair of spaced holes located on the flat recess, an upper male die member received in the upper portion of the opening and vertically slidable therein, the male die member having a pair of punching rods projecting downwardly, an arbor shaft having a threaded portion received in a threaded portion of the upper bore, a handle for rotating the arbor shaft, the arbor shaft having a lower portion adapted, upon rotation, to en

Abstract: In a tool change apparatus for a machine tool, a tool holder receiving means (3) is provided on the machine tool. A tool holder which is provided with a cylindrical portion for engagement of the change arm can be fitted into the tool holder receiving means (3), in the axial direction of the cylindrical portion. A radially extending screwthreaded bore (16) is provided in the cylindrical portion (4a). Provided at the free end of the change arm is a change head (17) which is movable radially with respect to the axis (S) of the cylindrical portion (4a) and which is provided at its outer end that is towards the tool holder (4) with a prism-shaped centering recess (18).

Abstract: A windshield-wiper assembly has a single base normally pivotal about a base axis generally perpendicular to a windshield and a generally one-piece inner arm support pivotal on the base about an inner axis offset from and transverse to the base axis and generally parallel to the windshield. This inner arm support has an outer end extending radially generally away from both axes and a single spring is engaged offset from the inner axis between the inner arm support and base and urges the inner arm support rotationally in one direction on the base. A pair of similar outer arm bars extend radially of the inner axis from the outer end and have relative to the inner axis respective inner ends fixed in the one-piece inner arm support and outer ends offset generally parallel to the inner axis from each other. Respective wiper blades carried on the outer ends of the arm bars are pivotal thereon about outer axes generally parallel to the inner axis. Normally the spring urges the blades against the windshield.

Abstract: A method and a device for controlling fuel injection in multi-cylinder internal combustion engines, includes means for computing a time shift of a common time point for ignition start in respective cylinders to a new value at which pressure differentials in respective intake pipes are approximately equal and consequently .lambda.-dispersion is minimized.

Abstract: Disclosed is an electronic system for computing control magnitudes for a control system of an internal combustion engine. The control magnitudes are derived by computation from measured auxiliary parameters. The control magnitude such as suction pipe pressure is computed from its relationship with the flow rate of air mass, or throttle valve position and rotary speed. Atmospheric pressure is computed from the air mass flow, rotary speed and throttle valve position or from the cross-section of the channel by-passing the throttle valve and from the supplied air mass. The computation arrangement can be either analog or digital.

Abstract: A household slicing machine wherein a rotary disc-shaped knife is mounted in a housing in a vertical plane to slice foodstuffs which abut against the front side of a stop. The front side of the stop is located in a second vertical plane which is parallel to the plane of the knife and the machine has an adjusting device which can move the stop relative to the knife so as to shift the plane of the front side of the stop nearer to or further away from the plane of the knife and to thereby select the thickness of the slices which are severed from the selected foodstuff. The adjusting device has a stationary component having a follower whose carrier is removably mounted in a working platform which forms part of the housing and is located in front of the stop. The carrier extends through a window of the stop into a helical path which is defined by two confronting cylindrical walls respectively forming part of an inner and an outer sleeve.

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.