Abstract: A magnetic valve has a coil, an armature, and a permanent magnet arranged coaxially with the coil, wherein the permanent magnet is formed as a plate with magnetic lines of force extending in the same direction or oppositely to the magnetic lines of force of the coil, and the armature is formed as a valve body opening in direction toward a lower pressure.

Abstract: In known fuel injection valves, perforated bodies are secured downstream of the valve sealing seat and are provided with injection openings the size of which meters the quantity of fuel injected. The novel perforated body is intended to enable simple adjustment of the size of these injection openings. The perforated body has a plurality of injection openings, which by their geometry meter the quantity of fuel flowing through them and aim the injected fuel stream. The provision of steps in the form of grooves, blind bores or wedge-shaped notches, in flat sides of the perforated body defines the length of individual injection openings. The perforated body is suitable for use in fuel injection valve of fuel injection systems of internal combustion engines.

Abstract: A pressure sensor includes a housing having a hollow space in the form of a longitudinal bore hole with a portion having a greater diameter on the end facing the pressure medium. A pressure-sensitive element is placed into this end portion of the longitudinal bore hole and a closing member is pressed into the bore hole and closes the hole so as to be tight. Accordingly, the remaining portion of the longitudinal bore hole need only have a small diameter corresponding to the electrical conductors which extend from the pressure-sensitive element. The strength of the housing is therefore considerably increased.

Abstract: A hydraulic control valve comprises a housing having a slider opening and at least two pressure medium chambers, a control member which is longitudinally movable in the opening so as to at least control a communication between the two pressure medium chambers, the control member having two opposite ends, a rotation preventing element provided on one of the ends of the control member, a coupling part which is arranged on the control member non-rotatably and longitudinally displaceably relative to the latter, and a structural member which is arranged radially to the control member so as to guide the coupling part longitudinally displaceably and non-rotatable relative to the housing.

Abstract: The proposed vehicle brake system includes a brake fluid pressure device embodied as a brake booster, front wheel brakes rear wheel brakes and an anti-skid apparatus having values for maintaining, reducing and increasing brake pressure. One of the brake pressure maintenance valves is associated with the rear wheel brakes and is further developed into a valve combination, which additionally includes a brake pressure regulating valve. The valve combination includes only one valve seat and one valve element, which serves both for keeping braking pressure constant in the anti-skid situation and to limit the rear wheel braking pressures during braking. The valve element is controlled on one side by a control piston acted upon by brake pressure and on the other by an electromagnet.

Abstract: The invention relates to a brake cylinder suitable for a hydraulic vehicle brake system, having at least one brake chamber and a brake booster, actuatable by a piston rod, with a brake valve assembly that has an inlet and an outlet for power brake fluid and communicates with a pressure chamber of the brake booster. The pressure chamber is located in a longitudinally bored housing section and is defined in the axial direction by one end of a sealed and displaceable sheath and of a rod that is sealed and displaceable within the sheath. The sheath and rod form two servo pistons for generating brake pressure in the brake chamber. The rod is displaceable in an emergency by means of the coaxially aligned piston rod. In a space-saving manner, the brake valve assembly is built into the rod and piston rod.

Abstract: For generating an electrostatic field, a coagulator for an exhaust gas scrubbing system for internal combustion engines has an electrode, which extends in an insulated manner within a housing. The electrode is braced on the housing via at least one insulator. To prevent the formation of a short-circuiting bridge between the electrode and the housing as a consequence of the deposition of so-called agglomerates on the insulator surface, the insulator is heated to a surface temperature of over 400.degree. C. In order to attain an extremely compact insulator and so that heating it will require little energy, the insulator is embodied in disk-like fashion and has a spiral heating conduit, through which hot gases flow, disposed in its interior. The hot gases are diverted from a partial flow of the engine exhaust gas, or are drawn from the exhaust gas of a soot burner.

Abstract: A fuel injection pump formed as a radial piston pump having an encompassing cam ring, which drives pump pistons and a feed piston, which feed piston is embodied as a feed pump and is urged by a spring in the direction of the cam race. This arrangement results in a small size for the pump, in which sealing problems are substantially reduced and only a small idle fuel volume must be moved. By means of this fuel injection pump, a relatively high fill pressure in a pump work chamber is attained.

Abstract: An electric coffee or tea maker wherein a supply of water softening agent is installed in the region of the outlet of a water tank so that the stream of water which is discharged by the tank when the maker is in use is acted upon by the softening agent before it enters the conduit or conduits which convey the stream through an electric heater and thereupon into a receptacle for comminuted coffee beans or tea leaves. This prevents gradual clogging of the conduits with boiler scale. The supply of softening agent can be replenished or replaced. This is determined by looking through an observation window so as to ascertain the color of the softening agent. The color is indicative of the condition of the softening agent, i.e., whether or not the softening agent is still capable of performing its water-softening function.

Abstract: A method for recognition of the power stroke of an internal combustion engine is proposed, in which recognition as to whether a cylinder is currently in the power stroke is possible by means of camparison of a signal that is synchronous with the crankshaft angle and a signal that is modulated by the combustion events of the engine.

Abstract: A master brake cylinder including a re-aspiration valve which is disposed as a central valve in pistons of the master brake cylinder. The re-aspiration valve has a porous body, comprising porous metal, which forms a flat valve seat at one end. The sealing body of the re-aspiration valve is raised gently from the valve seat even at high ambient pressure, which makes a re-aspiration valve embodied in this way particularly suitable for use in master brake cylinders of brake systems having slip control. Because the porous body comprises porous metal which differs in length from its wall surface at one end to its axis to form a conical void space. The porous body has an axial flow resistance that decreases from the outside wall inward to its axis.

Abstract: In a drilling tool for drilling in solid metal material, in particular for drilling in plate stacks (plate drill), two geometrically similar reversible carbide tips (2, 3) are arranged at different radial distances at the end of the shank (1) and offset from each other by 180.degree. in the circumferential direction, whose working ranges overlap, and each of which comprises several cutting edges (2a, 2b, 3a, 3b) of equal length. Of the cutting edges (2a, 2b, 3a, 3b), respectively two adjacent cutting edges at an obtuse angle (.alpha.) to each other are simultaneously in contact, wherein the radially inner, first reversible carbide tip (2) extends by its cutting edge (2b) which is in contact slightly beyond the drill axis (A), and the radially outer, second reversible carbide tip (3) is axially set back from the first reversible carbide tip (2), and its two operative cutting edges (3a, 3b) form acute angles (.beta.1, .beta.2) of different size with the drill axis (A).

Abstract: A hydraulic valve control device for internal combustion engines having a magnetic valve for controlling the opening and closing time of an inlet or outlet valve in which the fluid pressed out of the stroke transmission chamber by the engine valve springs is stored in a reservoir chamber integrated with the magnetic valve; the reservoir chamber, by displacing the valve member backward, functions as a reservoir piston in the opening direction. A spring acting upon the valve member in the closing direction of the magnetic valve presses the fluid back into the stroke transmission chamber, which now is expanding one again. The magnetic valve communicates with the stroke transmission chamber through the shortest possible fluid conduit.

Abstract: An air flow rate meter having a support body that protrudes into the air intake tube of an internal combustion engine and has an aperture in which a hot wire is deployed over support points. A support body protrudes vertically into a horizontally extending intake tube with two apertures, one above the other, and includes both a first hot wire in the first aperture and a second hot wire in the second aperture, each in the form of a V, with the required tension. Each hot wire is secured with each of its ends to a respective support point and is guided with a loop over a middle support point. It is particularly advantageous to dispose the ends of each hot wire with the support points on the upper end face of each aperture, because in that case the heat buildup ensuing during a burn-off procedure enables particularly good burnoff of the deposits on the ends of each hot wire and any solder at the intersections of the individual loops is protected from overheating which would destroy the solder.

Abstract: A coffee or tea making machine wherein the housing has a container for a supply of water and supports a holder for tea leaves or comminuted coffee beans. A conduit connects the outlet of the container with the holder, and a portion of such conduit is constituted by an electric heater which has one or more thick film conductors in series with an on-off switch and a relay which regulates the flow of current from an energy source to the thick film conductor or conductors. Such conductor or conductors can be applied directly to an insulating carrier which can be made of a ceramic or plastic material and defines a portion of the path for the flow of water from the container to the holder. Alternatively, the carrier can be made of a metallic material, such as aluminum, and then supports one or more insulating covers at least one of which carries a thick film conductor. The conductor or conductors are applied in the form of a paste which is caused to dry on the insulating carrier or on the cover or covers.

Abstract: A machine for making hot tea wherein a pressure-resistant container for the supply of water supports or embodies an insulating carrier for one or more thick film conductors. A riser, which can be caused to move up and down relative to the bottom wall of the container, serves to convey hot water into a steeping receptacle wherein the water comes in contact with tea leaves. The sealable outlet in the bottom of the steeping receptacle can discharge hot tea into a vessel resting on a warming plate. The warming plate is supported by a leg of the housing for the container and steeping receptacle and can be heated by a second heater having a carrier for one or more thick film conductors.

Abstract: A feed pump, preferably for anti-skid brake systems, having at least one shaft-driven pump piston and at least one compensation element. Some of the brake fluid fed by the pump piston into the brake system during the compression stroke is received in a compensation chamber of the compensation element. During the ensuing intake stroke of the pump piston, an eccentric shaft that also actuates the pump piston actuates a compensation piston of the compensation element, in order to feed the brake fluid that has been temporarily stored in the compensation chamber into the brake system.

Abstract: A machine for making coffee, soup or other hot beverages has a housing for a pressure-resistant container which can receive a supply of water or another liquid. The bottom wall of the container constitutes or supports an insulating carrier for one or more thick film conductors which can be connected by several relays so as to cause heated liquid to flow to the holder in pulsating fashion. One of the relays receives signals from a thermometer which monitors the temperature of heated liquid in the conduit. A second heater employing one or more thick film conductors is used to heat a warming plate for a vessel which can be placed onto a leg of the housing beneath the holder to receive hot beverage when the outlet of the holder is open. The conduit includes a riser with an inlet at its lower end, and a pipe connecting the upper end of the riser with an outlet for heated liquid.

Abstract: A system of navigation for vehicles is proposed, which is provided with a device (14) for representing a road map as well as with a composite navigation apparatus (10, 11, 12) for the continuous instantaneous determination of the location of the vehicle and with a location display (16) on the representation of the road map. Deviations of the location from the course of the roads on the road map are detected and corrected. In order to be able to input a desired trip route (21) into the navigation system without an additional representation of the road map, prior to the beginning of the trip the desired trip route is traced by hand, using an input device (17, 18) connected to a trip route memory, with a wand (19) on the existing representation (14) of the road map, and thereby stored in the trip route memory (13). (Fig. 1).