Abstract: A fuel injection pump, especially for internal combustion engines, which includes a pump piston axially displaceable in a cylinder of a pump housing and operable by a cam of a camshaft through the intervention of a rocker. For controlling the quantity of the fuel to be injected, the circumference of the piston is provided with an oblique control groove for cooperation with a control bore in the cylinder. The rocker is pivotally connected to the pump piston and in spaced relationship to the piston is under the load of a spring determining the maximum injection pressure. Between the area where the spring acts upon the rocker and where the rocker is pivotally connected to the pump piston, the rocker is provided with a roller adapted to roll on the cam while the spring presses the rocker in fuel feeding direction against an abutment.

Abstract: A mounting arrangement for mounting a piston compressor attached as an auxiliary machine to an internal combustion engine which piston compressor has an open crank assembly and a gear wheel on an extended crankshaft for installation in, and cooperation with, the gear transmission system of the internal combustion engine and a mounting flange surface portion below the cylinder. Between the flange surface portion of the piston compressor and the transmission housing for the internal combustion engine there is provided an intermediate flange member the flange face of which is directed towards the transmission housing, is axis-parallel to the crank circle cylindrically arched, and is attachable to be radially movable in the circumferential direction of the arcuate portion on a matching concave surface portion of the transmission housing.

Abstract: An internal combustion engine and a method of operation thereof in which a plurality of compressors are connected through check valves with the inlet means of the working chambers of the engine while the working chambers are connected through control valves and gas turbines, each of which drives a respective compressor. The control valves are arranged to open sequentially as engine speed increases and to close sequentially as engine speed decreases with the opening of each control valve taking place more rapidly and at a higher engine speed than the closing thereof. In starting the engine, only one of the turbine is supplied with gas to initiate a supply of compressed air for use in starting the engine.

Abstract: A motor vehicle, especially agricultural motor vehicle, which comprises a driver's cab with lateral parts formed by lateral walls of fenders which lateral walls are adapted to transmit overturning forces conveyed to an overturning protective device associated with the driver's cab, and/or to transmit overturning forces received by the driver's cab to the frame of the vehicle and/or to an axial carrier of a driving axle, while the side walls of the fenders are bridged by an upwardly directed transverse wall reinforcing these side walls and preceded by a seat for the driver. The transverse wall, at least within the region of the driver's seat, is designed as honeycomb-shaped structural member while at least one member of this honeycomb-shaped member serves for receiving and storing a working medium for a fluid operable system in the motor vehicle.

Abstract: A venting valve for a crankcase of a reciprocable piston internal combustion engine with a valve housing which is divided into three chambers by way of a movable wall and a hollow cylindrical valve member which is sealingly connected to the movable wall. The first one of these three chambers is arranged for communication with the surrounding or environment whereas the second chamber has a connection for communication with the crankcase, and the third chamber, which includes the inner chamber of the valve member, has a connection for communication with a suction conduit. The valve member in combination with its valve seat controls an opening between the second and third chambers. The connection for communication with the suction conduit forms the inner valve housing-connected support for the movable wall and is axially aligned with the valve member, and the connection for communication with the crankcase is located opposite the connection to the suction conduit and coaxially surrounds the valve member.

Abstract: The present invention relates to a system and method for the heat treatment of finely divided materials, such as those used in the manufacture of cement. In the improved system of the present invention, two rows of suspension gas heat exchanges are provided, each row including a plurality of cyclone separators. A calcination furnace is connected to one of the rows, and a material cooler is connected to the other of the rows. In a preferred form of the invention, the row connected to the calcination furnace has at least one cyclone separator less than the row connected to the material cooler. A combustion device is also provided in conjunction with the material cooler to make more efficient use of the calcination furnace.

Abstract: A disc brake, especially for motor vehicles, which preferably has two pressure discs which by means of antifriction or sliding bodies arranged in recesses provided with inclined or crowned surfaces rest against each other. When turning the pressure discs in counter-current direction with regard to each other, the anti-friction or sliding bodies move onto the surfaces of the recesses, spread apart the pressure discs against the thrust of return springs, and press the brake discs, which are axially displaceable on a shaft to be braked, against associated braking surfaces. The pressure discs are guided in a housing by means of at least three guiding elements distributed over the circumference of the housing. Each pressure disc has associated therewith an abutment for limiting the turning movement of the pressure discs. The guiding members, which respectively resist a tilting of the pressure discs about the pertaining abutments, are radially adjustable.

Abstract: A method for the production of low alkali-cement clinker from alkali-containing raw material comprising a preheating step, a deacidification step and a sintering step utilizes a portion of the alkali-containing exhaust gases from the sintering step which are mixed with deacidified combustion gases from the deacidification step and reintroduced into the system in contact with the raw material to preheat and precalcity the raw material in a plurality of cyclones.

Abstract: A rotary vacuum filter for the separation of solids-liquid mixtures has a rotatably supported filter drum having a stationary hollow conduit extending through the interior of the drum which is attached to a vacuum pump. The drum is rotated in a tank containing a mixture to be separated, so that the vacuum action draws the mixture through a filter disposed on the surface of the drum into the interior thereof, where an interior pump removes the filtered liquid and discharges same through the hollow conduit. At no time during the filtration process is air mixed with the filtered liquid, so that subsequent processing to remove air from the liquid is not required.

Abstract: An apparatus and method for the treatment of fine grained materials including a calcining furnace, a plurality of cyclone separators arranged in series, with exhaust means delivering exhaust gases from the calcining furnace to one of the cyclone separators, with at least the first two of the plurality of cyclone separators being at substantially the same vertical height. Supplemental combustion means consisting of a fuel injection means and a combustion air injection means are included in the path of the exhaust gases passing from the furnace through the plurality of cyclone separators to render the system more efficient and to reduce the size of the components.

Abstract: A fuel injection pump with roller shaft for internal combustion engines, in which the roller is loosely journalled in a substantially cylindrical opening provided in a shaft or push member actuated in upward direction by a cam and in downward direction into its lower dead center position by a spring. The roller shaft or push member is at that end portion which is adjacent the roller provided with supporting surfaces by means of which the roller shaft when occupying its lower dead center position rests upon shoulders of a camshaft at opposite sides of the above mentioned cam. The diameter of the camshaft substantially equals the diameter of the high level portion of the cam. When the roller shaft rests on these shoulders, a gap is formed between the wall of the opening in the roller shaft and the roller so that sufficient lubricant can collect in the gap to assure proper lubrication of the roller, even when the roller shaft is under great load.

Abstract: An apparatus is disclosed for the determination of particle size distribution of a granular material within a measuring channel. The measuring channel has radiation permeable side walls and a granular material is spread out through the measuring channel by a sifting air current in accordance with grain size. A scanning apparatus is movable external to the measuring channel and includes a frame on which is mounted a radiation transmitter and a radiation receiver lying opposite the transmitter. A measuring beam from the transmitter scans through a measuring zone of the measuring channel. The measuring frame is of closed-loop construction and surrounds the measurement channel. With such construction, the frame is not subject to vibration particularly when reciprocated in order to cause scanning movement of the measuring beam.

Abstract: A method for the recovery of metal values from a solution by means of a cementation reaction in an oscillating container wherein the resulting cementate is converted by pyrometallurgical methods into molten metal and slag. In accordance with the present invention, at least a portion of the slag in particulate form is directed back into the oscillation reaction to serve as an agitation medium.

Abstract: A digester vessel for containing material to be subjected to a high temperature pulsating high pressure process with an inner tubular enclosing metal wall of a helically corrugated sheet material forming a chamber thereon, an outer containing tubular wall, and an intermediate layer of stacked ceramic material with a vent opening through the outer wall, mold bodies fitting the corrugation spaces between the inner wall and the intermediate layer, corrugated flanges at the ends of the inner wall welded to the outer wall, and an end closure for the chamber having a flange meeting a flange of the outer wall with a packing therebetween.

Abstract: A method and apparatus for the thermal treatment of alkali-containing pulverent raw material used in the manufacture of cement in which the material is preheated in a preheater and after sintering in a furnace is conveyed to a cooler. Alkali free exhaust air from the cooler is conveyed into the preheater for heating the material and the alkali-containing furnace exhaust gases are cooled by means of adding a portion of the pulverized raw material to them in a heat exchanger. The alkali salts are condensed and are separated off in a dust collecting chamber.

Abstract: A multi-cylinder reciprocating piston internal combustion engine with the cylinders thereof arranged in series in a plurality of rows, which includes a crank shaft with Z-shaped lift pin having rotatably journaled thereon a universal joint. The universal joint includes an outer part with journal pins and an inner part journaled in the outer part and including a hollow shaft having its longitudinal axis extending perpendicular to the axes of the journal pins. The outer part of the universal joint is non-rotatably connected to a double arm rocker having pistons connected thereto through the intervention of connecting rods. The outer part of the universal joint which is journaled in the engine housing extends around the lifting pin in a box or bowl-shaped manner. For each lifting pin, two diametrically arranged double arm rockers, with two pistons each are provided.

Abstract: A fuel injector for internal combustion engines, comprising a controllable fuel injection pump and a fuel injection valve. The valve has a spring-loaded valve needle which opens counter to the direction of flow of fuel, and which is acted upon by an additional closing force during closure of the needle. The armature of a lifting magnet acts upon that end of the valve needle which faces the spring, and acts in the direction of closure and parallel to the valve spring.

Abstract: A method and mechanism for calcining cement wherein the material is preheated in a precalcining zone and a vertical conduit leads heated discharge gases upwardly from a main calcining furnace, a supply of fuel and a supply of oxygen is fed to a preoxidation zone beneath the precalcining zone and raw material is fed into an admixing area above the burner with a deflector preventing particles from falling down into the preoxidation zone with the fuel being partially oxidized so that controlled heating and controlled oxidation occurs in the precalcining zone.

Abstract: A method for the production of cement from raw material to the clinker stage. The raw material is first heated using waste heat from subsequent stages of this process. The heated raw material is then passed into a precalcining stage in which the raw material is partially calcined. The calcination is then completed in an after-calcining stage wherein heat is provided by the combustion of a fuel. The material is next passed to a kiln for conversion to clinker, and is then cooled in a cooling stage. Air for the combustion and the after-calcining stage and in the kiln is supplied from the cooling stage.