Abstract: An apparatus for the burning of solid particles, especially soot particles, separated from the exhaust gas from internal combustion engines has a rotationally symmetrical combustion chamber which coaxially adjoins an ignition burner connected with it by a flame transfer orifice. Fuel and air are metered to the ignition burner through an additional-air line and a fuel line and, as a prepared mixture, they are ignited in the ignition burner and enter the combustion chamber through a flame transfer orifice. In the combustion chamber an exhaust gas partial stream enriched with the solid particles is introduced, and, after the solid particles have been consumed together with the additional air put into the combustion chamber, the exhaust gas is then discharged again as cleaned exhaust together with the remaining combustion products through an outlet tube.

Abstract: A slidable toe piece has rearward extensions which are cam locked in place in tunnels in the fixed heel piece.

Abstract: A hand tool machine, in particular a drill machine, has a feeler device for determining the diameter of a tool element to be used with the hand tool machine. For measuring the tool elements prior to insertion into the clamping element of the hand tool machine, a feeler device is provided which is arranged separately from the clamping element and is connected with an indicator. The diameter determined by the feeler device is administered to a control unit which is controlling the driving motor. The control unit can also receive in addition further information concerning the material to be treated by means of an input device. In view of the measuring value with regard to the diameter of the tool element and the administered information concerning the material, the optimum rotary speed for the tool element and consequently for the driving motor is determined and adjusted.

Abstract: A valve control arrangement for internal combustion engines with reciprocating pistons, comprises a housing having a housing opening, a valve piston axially displaceable in the housing opening, a valve closing spring, a valve plunger on which the valve piston acts against the valve closing spring, a cam piston axially displaceable in the housing opening, a valve control cam, a pressing spring which presses the cam piston against the valve control cam, a working chamber formed between the valve piston and the cam piston and arranged to be filled with pressure medium which transmits a lifting movement of the cam piston to the valve piston, the pressing spring which acts on the cam piston being arranged outside of the working chamber and supported at the side of the housing.

Abstract: Successive groups of television lines of a first field of a television frame have the luminance information recorded on a first oblique track and the chrominance information recorded on the next, whereas in the second field of the frame, the chrominance information is recorded on the first and the luminance information on the next track of each successive pair of tracks. Audio information is recorded in four segments of each of two channels, with two segments (one from each channel) preceding the video information and two more following it on each track with spacing by recording-free gaps (G). This arrangement maximizes the effect of covering or correcting transient or longer duration failures resulting from defects in the tape or irregular incidence or blockage of a magnetic head.

Abstract: The invention is directed to a mixture metering arrangement for an internal combustion engine and includes an exhaust-gas sensor which is exposed to the exhaust gas of the internal combustion engine. The exhaust-gas sensor indicates the air ratio lambda and preferably has a two-level characteristic. The sensor output signals are acted upon by a follow-on controller which is preferably a PI-controller. The controller output quantity acts upon the mixture composition in a corrective fashion. In this arrangement, the control oscillation of the controller output quantity is adjusted to a predetermined amplitude by means of a superposed control. In particular, the integral component of the control oscillation is influenced in a manner causing it to have the same amplitude as the proportional component while in the steady operating condition. Thus, it is possible to maintain the maximum control frequency in any operating range of the internal combustion engine so that the controller always operates at its optimum.

Abstract: A locking-type differential (5; I, II) is automatically engaged to locked position upon sensing of certain vehicle operating conditions, and unlocked upon sensing other vehicle operating conditions. If the steering wheel is deflected, or transverse acceleration is sensed, the differential is inhibited from locking; likewise, if the brakes are applied, or the engine is operating under idle condition, the locking-type differential is either unlocked or prevented from locking. On the other hand, if a kick-down signal from the accelerator is sensed, or if the difference in speed of driven and rolling wheels exceeds a predetermined amount, thus indicating slippage of the driven wheel, or if a brake applied to the driven wheel is then engaged, and the speed between the wheels coupled to the differential has become essentially uniform (FIG. 2, terminal 17), the differential is controlled to lock.

Abstract: A potentiometer chamber on the intake pipe wall of an internal combustion engine for containing an electrical potentiometer. The potentiometer chamber comprises a limiting wall, formed by the intake pipe wall, a sidewall extends thereto from which serves as lateral limits of the chamber. A partition made by injection molding from plastic, into which are embedded electrical contacts extends from the sidewall and a lid is placed on the partition. Therefore the limiting wall, the sidewall, the partition, and the lid form the chamber that encloses a potentiometer.

Abstract: To reduce the size of on-location editing apparatus, an editing console, capable of recording, re-recording, reproducing, editing, dubbing, duplicating and the like, of video signals recorded on magnetic tape is specifically arranged to receive television camera-type video tape handling units (12, 13), the camera-type handling units being plug-compatible with the console and arranged for plug-and-socket connection therewith to retain the tape handling units on the console and provide electrical connection for video, audio and control signals between the console and the camera-type video tape handling unit.

Abstract: A fuel injection system functioning with a reservoir, in which a quantity received by the reservoir is injected after the termination of pump supply for the purpose of prolonging the injection time.

Abstract: A throttle valve pipe is proposed, which is used for fuel mixture formation for mixture-compressing internal combustion engines with externally supplied ignition. The throttle valve pipe includes an intake conduit and a throttle valve is disposed therein and to control fuel flow. From upstream of the throttle valve fuel can be ejected by an injection valve in the direction toward the throttle valve. The throttle valve is made of ceramic and on its surface which faces the injection valve this valve is provided with an electric heating resistor film. In the pivoting region of the throttle valve, a liner of ceramic is inserted into the intake conduit and the additionally liner surface which forms part of the intake conduit is provided with an electric heating resistor film.

Abstract: A one piece, fiber reinforced, plastic radiator cooling fan for a truck. The fan is reinforced by: a hub extension which extends from the hub into each blade a substantial distance; by directly interconnecting the leading and trailing edges of adjacent blades to form a juncture therebetween in the form of a spiral located radially outwardly from the hub; by having the leading and trailing edges of adjacent hub extensions interconnect in a smoothly curved line tangent to the hub; by strengthening locations of high stress in each blade; and by avoiding sudden changes in thickness and in direction of the various portions of the fan.

Abstract: A drawing machine having a frame for translatory movement upon a drawing surface. The frame defines an elongated, transverse interior opening. A plurality of template means are removably receivable within the interior opening. Each includes an aperture defining a shape which may be traced upon the drawing surface by the user. The template means may be repositioned along the transverse length of the elongated interior opening. Translatory movement of the drawing machine upon the drawing surface and guided movement of the template means along the interior opening permit the user to create varied patterns and pictures.

Abstract: An apparatus is proposed which serves to control the quantity of exhaust gas recirculated from the exhaust gas system of an internal combustion engine to its intake side. The apparatus includes a pneumatic control element having a diaphragm, which defines a work chamber and actuates a valve closing member of an exhaust gas recirculation valve. Via a control pressure line, the work chamber communicates with a flow line leading to the atmosphere and a connecting line leading to the intake tube downstream of a throttle valve. A check valve opening toward the intake tube, a reservoir and a throttle restriction are disposed in the connecting line. A bypass line having a bypass valve embodied as an electrofluid converter control of the nozzle/impact plate type bypasses the throttle restriction.

Abstract: The housing is essentially spherically shaped, formed with a flattened end wall (14), through which a sound receiving opening (42) extends in axial direction, located eccentrically with respect to the spherical housing. A volume control button (50) covers the sound receiving opening, the volume control button being maintained by a small distance (h) spaced from the spherical end wall to permit entry of sound to the sound receiving opening, while preventing masking of the sound receiving opening by the finger of a user, and free entry of contamination thereto. Preferably, the button is connected to the volume control element by an inwardly extending collar (52) which snaps over an adjustment rim (35) on a volume control positioned axially centrally on a printed circuit board (31) secured within the housing and passing through a central opening (47) formed therein.

Abstract: A method and apparatus are disclosed for measuring the flow rate of a medium flowing through a pipe. The invention is particularly for measuring the rate of air flow in the intake pipe of an internal combustion engine by means of a throughput sensor which is insensitive to the direction of flow. The throughput sensor can be a constant-temperature anemometer. The analog output signals of the sensor are converted into a sequence of discrete numerical values with an adjustable sampling rate, wherein the periodic output signal characteristic of the flow meter is weighted for determining the occurrence of changes in the direction of flow, and wherein the duration of time in which the direction of flow is changed is considered in the determination of the flow rate via corresponding correction factors.

Abstract: The unit fuel injector has a pump piston driven at a constant stroke length, which pumps fuel at injection pressure to an injection nozzle as long as an electrically actuated overflow valve blocks the flow of the fuel flowing from the pump work chamber to a low-pressure chamber via an overflow conduit. The overflow valve is inserted between a first section which communicates continuously with the pump work chamber and a second section leading to the low-pressure chamber of the overflow conduit and is secured to a housing part laterally projecting from the pump housing. The first section of the overflow conduit comprises a connecting bore leading away from the pump work chamber, a control conduit controlled by the overflow valve, and a transverse conduit connecting these two.

Abstract: Electrical energy being supplied to an electrical heater, typically a glow plug within an internal combustion engine (ICE), is easily and simply controlled by controlling the duty cycle or ON/OFF duration of a switch (10) serially connected between the glow plug (11) and a supply voltage source, for example a vehicular battery (U.sub.Batt). An operational amplifier (15) controls the duty cycle of the switch (10) by comparing a periodically varying voltage (37a) derived from a stabilized frequency or pulse generator (30) with battery voltage (U.sub.Batt) and, at the cross-over points, respectively changing the switching condition of the switch. Upon drop in battery voltage, the switch will be longer in an ON position than at a higher battery voltage, so that the average voltage, over a plurality of cycles, across the glow plug (11), will have a value (U.sub.KEM) which will result in a predetermined temperature thereof.

Abstract: A food processor wherein a shaft which extends into the interior of a bowl is driven by an electric motor employs a whipping tool having a hub which receives torque from the shaft, either directly or through the medium of an adapter, and a disc-shaped portion. The underside of the disc-shaped portion is immediately adjacent to the upper side of the bottom wall of the bowl and has ribs separating radially extending channels each having an inlet in the region of the hub and one or more outlets at the periphery of the tool. When the tool rotates, the inlets draw air or receive air from a system of passages, and the channels discharge the thus admitted air into the material (such as cream, egg whites or mayonnaise) which gathers at the periphery of the tool so that the material is thoroughly mixed and is also whipped by admission of finely atomized air. The tool can process large or very small quantities of foodstuffs without changing its RPM.