Abstract: An electrically controlled fuel injection pump for internal combustion engines, in particular for direct fuel injection in engines having externally supplied ignition contains a plurality of pump pistons driven by a single common cam. The pumping quantity of fuel is delivered by pumping pistons is controlled via a rotary slide valve to the injection nozzles at the injection sites of the engine, wherein the quantity control is effected by an electrically controlled valve. An axial conduit of the rotary slide which discharges into control bores or control grooves distributed over the circumference of the rotary slide and cooperates with the pump work chamber and the pressure lines to the injection sites and is adjoined by at least one further control bore or control groove which communicates with a pressure reservoir. By this means, a preinjection, separate from a main injection, is made possible at the top dead center charge change.

Abstract: To reduce the construction expense and the space required for a fuel injection pump for supplying a plurality of cylinders of an engine, in particular an internal combustion engine having externally supplied ignition, a fuel injection pump including a drive shaft with a single common cam drives a plurality of pump plungers. The supply quantity is controlled via a rotary slide and a subsequent common distributor delivers the fuel to the injection nozzles at the injection sites of the engine. The quantity of fuel injected is effected by an electrically controlled valve seated in a relief line that branches off downstream of the rotary slide, which by closure of the relief line determines the injection phase.

Abstract: A spiral compressor has a two-part housing, a displacement element positioned between two parts of the housing and having a spiral wall extending into a spiral chamber, formed in one of the housing parts, so that two working chambers are defined in the spiral chamber. The displacement element has an eccentric which is mounted to the end of a drive shaft. The displacement element is provided with a device for securing it against rotation. The securing device includes at least three guides positioned on the displacement element and circumferentially spaced from each other. Each guide has a ball bearing engaged in a plastic sleeve located in a pocket bore of the displacement element and supported on a bolt screwed to the second one of the housing parts. Thereby the displacement element is slightly pre-stressed in each position of the eccentric and thus secured against rotation.

Abstract: A device for the removal of solid particles, particularly soot particles, from exhaust gas discharged from an internal combustion engine includes an electrofilter comprised of a plurality of parallel filter tubes each having a separator tube connected to a positive terminal of a high voltage source and a corona discharge electrode connected to a negative terminal of the high voltage source, and a centrifugal separator formed as a multi-cyclone the cyclones of which are arranged in an axial extension of the electrofilter and are connected to the same.

Abstract: An afterburner for clearing soot from a particle-laden gas stream has a housing centered on an upright axis and having a generally cylindrical upper portion having a downwardly open lower end, and a lower portion tapering toward the axis from the lower end of the upper portion and having at the axis a downwardly closed lower end. An exhaust tube opens at the axis into the upper housing portion above the lower end thereof. A feed tube opening tangentially into the upper housing portion above the lower end thereof introduces the particle-laden gas stream tangentially into the upper housing portion. Thus the soot particles of the gas stream move inertially radially outward and descend in the housing to collect at the lower end of the lower housing portion. An electrical heating element at the axis at the lower end of the lower housing portion burns the soot particles collecting therein.

Abstract: An apparatus for removing solid particles from internal combustion engine exhaust gases is proposed, in which the flow of exhaust gas travels at a high speed of more than 2.5 m/sec through an elongated tube (4), in which a corona discharge takes place from a coaxial spray disk/electrode arrangement toward the wall of the tube. Inside the tube, the soot particles are agglomerated to form larger particles, which are not deposited on the walls because of the high flow speed, which then carries them to a centrifugal precipitator, leading away from which are a tube carrying scrubbed exhaust gas and an outlet having a small quantity of exhaust gas highly enriched with soot. This soot-enriched flow of exhaust gas can advantageously be recirculated to the intake side of the associated engine for afterburning.

Abstract: A high-voltage insulator which is suitable for use in chambers carrying gas highly charged with solid particles and is used particularly in electrostatic filters used for cleaning an exhaust gas derived from internal combustion engines used to drive motor vehicles. The high-voltage insulator is columnar in structure, having shield-like ribs succeeding one another at intervals, adjacent to each of which in the insulator is one recess. With the remaining insulator parts having a smaller diameter, this recess forms a sharp edge, which defines discharge paths toward the flank of the shield-like ribs. Inside these paths, the insulator is kept free of soot coatings or conductive coatings, so that the insulator itself offers high resistance to leakage currents, which would cause insupportable power losses.

Abstract: A slip clutch for transmitting torque between a drive motor having an output member and a generator having an input member has a transmitting element including a spring element with a friction element, and a ventilator is connected with one of the members for joint rotation therewith. The ventilator may be mounted on one of two housing parts which together form an oil-containing chamber.

Abstract: To remove solid particles such as soot, aerosols, and the like, from the exhaust gas of an internal combustion (IC) engine, for example a Diesel engine, the solid particles and aerosols are first charged in an electrostatic field which is generated between a solid surface (2), preferably cylindrical, and pointed discharge elements, typically electrostatic spray disks (3). The solid particles will adhere together, and to the surface, to form--with respect to the original dust and soot particles and aerosols, large area flakes and agglomerates which are carried along by the gas flow, and are then separated out in a mechanical separator (7, 15, ).