Abstract: A method of calculating fuel injection quantities, as determined by the initiation and duration of fuel injection, in an internal combustion engine in response to repetitive engine operating parameters measured during engine operation. The quantity of fuel injected into a cylinder of a multicylinder engine may be determined through measurement of an operating characteristic of that cylinder immediately prior to injection. The timing of injection may also be responsive to the measurement of the engine operating characteristic which may not be uniformly repetitive.

Abstract: In a method and an apparatus for forage processing, in order to accelerate its drying process, mown stalk material is fed to rotating pressing elements (7, 7a, 7b), which consolidate the stalk material into a mat of stalk material. In order to produce an inherently stable mat of stalk material, the thickness and density of said mat are to be held constant, independent of the quantity of stalk material supplied by a mowing or collecting means (1), and the forage constituents within the mat are to be better mixed. To this end, the volume of stalk material fed to the pressing means (7) and a conveying speed of the pressing elements (7a and 7b) are continuously transmitted to a control means (20) as measured values, and on the basis of these parameters the conveying speed is reduced by means of the control means (20) in the case of a small quantity of stalk material accumulating (FIG. 1).

Abstract: In a known magnet system, specifically for magnetic separators, having homogeneously magnetized magnet blocks arranged in circular ring shape, the magnet blocks have their magnetization directions aligned differently from one to another and established in accordance with a predetermined mathematical formula. While a magnetic field running almost uniformly over the whole region of the magnet system is thus produced, the magnet blocks are made trapezoidal in cross section and, because of the many distinct magnetization directions, require separate fabrication. Both the fabrication and the assembly of these magnet blocks are therefore relatively complicated and time-consuming. In accordance with the invention, however, the fabrication and the assembly of the magnet blocks into a magnet system are quite substantially simplified and improved by virtue of the fact that the magnet blocks (1) are made square in cross section.

Abstract: In cement clinker production lines having calcinator connected upstream of the rotary kiln and equipped with a second firing, in order that the most complete possible burnup or residual burnup, favorable from the standpoint of thermal economy, of uncombusted fuel constituents such as, for example, CO and/or uncombusted residual carbon be enabled in the calcinator, and indeed in the case of calcinators without, but in particular with, a device for the reduction of the NO.sub.

Abstract: This invention relates to a compact heat exchanger-ventilation unit, for vehicles driven by internal-combustion engines which is compact and permits use of a narrow, low hood. The cooling air fan 1 has a diffuser and the resistance of the heat exchangers on the cooling air side is adapted to the delivery level of the cooling air fan 1. A refrigeration system condenser 7, charge air cooler 6, transmission oil cooler 4, motor coolant heat exchanger 3 and hydraulic oil cooler 5 are thus compactly arranged.

Abstract: An apparatus for smelting meltable substances, particularly ore concentrates. A transfer element joins the cyclone discharge to the furnace and is arranged between the melting cyclone and the furnace. In this way, the fitting, particularly the re-fitting of an open-hearth furnace with a melting cyclone can be significantly simplified; or, on the other hand, the melting cyclone can be very easily dismantled for the purpose of repair or can be replaced by another melting cyclone in a relatively short time, namely without a significant interruption of furnace operations.

Abstract: In a double roll machine such as roller presses for extremely high drive power requirements without having to employ heavy and bulky drive motors with intermediate gears operating under the principles of product bed pressing, both long ends of both rollers of a double roll machine are constructed as drive journals and all four drive journals each are driven by a separate drive motor, particularly by a slip-on gearing, i.e., that the two rollers of the double roll machine be driven with a total of four drive motors with resistant and shock torque shared equally at both ends of the rollers.

Abstract: Waste materials, potentially following their comminution and potentially following their dying or, respectively, preheating, are burned in a cyclone kiln (buring cyclone or, melting cyclone) at extremely high temperatures above 1500.degree. C. with formation of a molten slag low in noxious substances and a hot exhaust gas in which latter the valuable substances and/or noxious substances contained in the waste materials volatilize, whereby dusts enriched with valuable substances on the one hand and, on the other hand, dusts enriched with noxious substances are respectively separately separated out of the exhaust gas by partial condensation.

Abstract: A method and apparatus for separating mixtures of different densities into a lighter phase and a heavier phase including a rotary drum providing a cylindrical settling sump at the outer wall, a displacement member rotatably located within the drum forming a settling sump between the displacement member and the drum wall, a discharge element for lighter phase material spaced radially inwardly from the settling sump, a discharge conductor for heavier phase material leading from the settling sump at the deepest location at the outer circumference of the drum, and a compressed air conduit connected to the discharge for heavier phase material aiding in the removal thereof, and vanes on the displacement member aiding in movement of the material through the drum.

Abstract: An improved cone crusher with an eccentrically driven crushing cone, crushing jacket outside of the cone defining a crushing nip therebetween, the cone is driven in an oscillating manner tilting about its vertical axis and is connected to a driven through a universal joint having a one way clutch connected between the joint and a drive shaft with a support for the cone and a cap having a reduced portion which can shear in torsion, and means for holding the cone on a support with controllable force.

Abstract: A method and apparatus for the manufacture of cement from raw cement meal wherein the meal passes through a series of preheating cyclones, through a calcining zone, through a rotary sintering furnace and to a cooler with the flow of meal from a penultimate cyclone heat exchanger divided into subflows with one chamber receiving air from the cooler and also receiving burning fuels that are extremely difficult to burn and both calcining chambers delivering meal to the last heat exchanger for delivery to the furnace.

Abstract: Grate plate carriers are formed box-shaped having a planar cover plate that, extending in the product conveying direction, joins to the following cover plate and is provided with openings that are covered at a slight distance therefrom by the grate plate lying on top thereof and formed flat, so that slot-shaped air passage openings remain between the cover plate and the grate plate, said slot-shaped air passage openings discharging into correspondingly formed air passage slots of the grate plate; and in that every box-shaped grate plate carrier is independently connected to a cooling air delivery conduit.

Abstract: A method and apparatus for grinding brittle stock such as cement clinker to form finished cement, passing the grinding stock through a first roller press having pressure and nip capabilities to do product bed comminution which is unique in self particle destruction causing incipient cracks in the inside of the product particles which are delivered from the press in agglomerations or scabs, the agglomerated scabs are delivered to a second roller press of larger capacity, which also does product bed comminution, de-agglomerating the scabs after the second roller press, classifying the de-agglomerated product and recirculating the coarse fraction back to the second roller press and possibly also to the intake of the first roller press.

Abstract: A roller mill such as a roll press or roll jaw crusher with crushing rollers and end face plates for lateral limitation of the nip mounted with pivotal links on the side walls of a product delivery chute and triangularly spaced support springs for the face plates urging them toward the nip with wear-resistant coatings on the inner surface of the face plates with the face plates having a lower removable extension.

Abstract: In known worm centrifuges comprising a solid bowl and a sieve bowl, a cleaning and predewatering of the solids/liquid mixture occurs in the solid bowl when dewatering solids/liquid mixtures and an after-dewatering of the solids occurs in the following sieve bowl. In general, a relatively good cleaning and dewatering effect is achieved with such previously-known worm centrifuges comprising a solid bowl. According to the invention, the after-dewatering effect in the sieve bowl can be quite substantially increased in that the conveyor worm is provided with agitator elements in the region of the sieve bowl, the agitator elements immersing into the solids layer. As a result thereof, in particularly, a circulation of the solids layer is achieved in the sieve bowl in a very advantageous manner and, as a result thereof, the after-dewatering of the solids before discharge from the worm centrifuge is very substantially improved.

Abstract: A control valve for a fuel injector, especially of an air-compressing, spontaneous-ignition, internal combustion engine. The control valve includes a valve body in the form of a piston valve which is axially movable in a housing chamber into a closure position and an open position, with the closure position being determined by a valve seat on the housing, and a seating surface edge on the piston valve. The housing chamber includes at least one high pressure connection, and a low pressure connection. The basic problem with a control valve of this general type is that when the piston valve strikes the valve seat, rebound movements are carried out by the piston valve, so that the closure position can only be reliably assumed after a certain time delay, thus negatively influencing the injection process.

Abstract: A method and mechanism for the separation of materials from a stream of pulverulent material such as cement including a rotatable plate onto which the material is fed with the material being centrifugally discharged in a bell shaped flow pattern, a radially inwardly directed flow of air across the veil carrying fine materials inwardly through a rotatable distributor; and coaxial dip tubes centrally located for receiving the gradations of fine material passing gravitationally downwardly, with the coarse materials remaining outside of the distributor and being received in a downward flow.

Abstract: A method and mechanism for the magnetic separation of material from a fluid containing magnetic and non-magnetic material, passing the fluid through matrix containing canisters wherein the canisters are carried on a turret which moves axially and rotatably. In four quadrilaterally arranged locations, two canisters are supported in a separation position within coils until they are filled and then are moved axially and rotationally to cleansing stations while cleansed canisters are rotated and moved axially up into the separation stations. A distribution head connects to the turret for delivery of magnetic material containing fluid and cleansing fluid.

Abstract: The invention relates to an apparatus and method for producing a free flowing coal suspension high in solids content. The coal is ground in at least two stages utilizing a mill having a calibrating effect in one stage and a mill without calibrating effect in another stage and adding a sub-quantity of viscosity reducing additive to the coal before each grinding. A drying of the coal or reconcentration of the suspension is not required. A roller mill operating on the principle of materials bed comminution is preferred as the non-calibrating mill in the first grinding stage and a rotating drum mill or a vibration grinding mill with rods as grinding bodies is preferred as the calibrating mill.

Abstract: A wet jig mechanism for handling coal or other minerals wherein a container receives a slurry of water and coal and the water is pulsed by delivering an alternate charge of compressed air beneath the surface of the water and alternately venting the area beneath the surface with the alternate pulsing and venting controlled by a pulsing valve having valve chambers with one chamber having ports connected beneath the surface of the container and to a source of compressed air in the other chamber connected beneath the surface of the liquid in the container and vented to atmosphere with the ports being controlled by butterfly valve plates in each chamber mounted on a common shaft and the chambers having liners or bushings rotatable to control the ports and time and duration of opening of the ports.