Abstract: A pressure control valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection point in the engine to be supplied. A valve body that has a first valve seat and an axial through conduit in which a pressure control valve closing member is guided. The pressure control valve closing member opens toward the injection point counter to the force of a first valve spring and has a sealing face that cooperates with the first valve seat, as well as with an axial through bore in the pressure control valve closing member. The bore can be closed by a back-flow valve that opens in the direction of the pump work chamber and has a second valve spring. For an optimal, unthrottled fuel flow through the pressure control valve, fuel conduits are respectively formed between the radially outer circumference faces of the first and second valve springs and the housing walls that encompass them, through which conduit the fuel flows in an unthrottled fashion.

Abstract: A fuel injection system for multi-cylinder internal combustion engines, which has one injection unit per cylinder. Each injection unit includes one injection valve, one control valve, one flow limiting valve and one injection nozzle and is supplied with fuel via a fuel delivery line. Each injection unit also has a control unit which actuates the applicable control valve. This actuated control valve then actuates the associated injection valve, which in turn opens the fuel delivery line upstream of the injection nozzle. The flow limiting valve disposed upstream of the injection valve in the fuel delivery line blocks fuel flow when the fuel quantity flowing through the flow limiting valve attains a maximum fuel quantity, and the flow limiting valve does not open again until the fuel delivery line is blocked downstream of the flow limiting valve.

Abstract: A piston pump, which is provided as a return feed pump for a slip-regulated motor vehicle brake system. In order to simplify the manufacture, a sleeve in the form of a tubular piece is clamped between a fastening element which is inserted into the cylinder bore using a self-clinching technique, and the cylinder bore, and is thus sealed and fixed in place. In addition to the simple manufacture of the sleeve out of reasonably priced tubular material, the piston pump has the advantage of a sealing of the sleeve in the cylinder bore without a separate sealing element such as a sealing ring.

Abstract: A reluctance motor electric machine including a number of stator pole teeth and a number of rotor pole teeth selected so that with a minimal reluctance, due to the rotational alignment of the rotor in relation to the stator, three air gaps that can be flowed through are produced between three pairs of stator pole teeth and rotor pole teeth. This results in the fact that now three regions of the yoke body are elastically pulled in the direction of the rotor rotational axis and consequently, the elastically deformed zones of the yoke body only extend over essentially and therefore act in a more rigid fashion. This results in the advantage that with the same excitation frequency, the deformations take place with small amplitudes and therefore with less generation of noise.

Abstract: A rodlike magnet valve having a magnetic part which is surrounded by a coil for actuating the valve. The magnet valve can be inserted into a receiving bore of a hydraulic block of a slip-controlled vehicle brake system. For fast, economical manufacture of the magnet valve, the magnet valve has a rotationally symmetrical base body, which has a through bore and a securing flange, as an extruded part without undercuts or tapered features. Along with the advantage of enabling fast, inexpensive manufacture of its base body, the magnet valve has the further advantage that the base body can be made from an economical reforming steel, which can be readily welded for fluid-tight mounting of a valve dome.

Abstract: In order to improve a device for measuring hydraulic flow quantities and leaks in a specimen, including a measurement path, embodied as an approximately vertically extending lead line to the specimen, and a capacitor sensor, which is disposed in the measurement path and can be acted upon both by at least one measuring medium and by at least one medium for generating a pressure (pressure medium) on the measuring medium in such a way that precise measurements of flow quantities and leaks are possible in a technically easily achieved way, the specimen is coupled directly to the measurement path.

Abstract: The invention concerns an electromechanical brake, in particular a disc brake (10), comprising a brake pad (14) which can be urged against a brake disc (16) by means of an electromotive actuating arrangement (18). According to the invention, in order to be able to release the brake (10) in the event of an electronic component failing, for example, a releasable support device (42) supports the actuating arrangement (18) on a brake calliper (12) when the brake pad (14) is urged against the brake disc (16). In order to release the support device (42), its distance from the brake disc (16) is increased such that the actuating arrangement (18) and together therewith the brake pad (14) are released from the brake disc (16).

Abstract: A valve control unit for a fuel injection valve, has a housing body, in which two valve control chambers that communicate continuously with one another are provided. The first valve control chamber communicates fuel with an inflow conduit for fuel pressure on a terminal member of a valve control piston which is displaceable in the housing body and the second valve control chamber communicates with a closable outlet conduit. A mechanical stop for limiting the mobility of the valve control piston in the direction of the second valve control chamber is embodied on the housing body. The quantity of preinjected fuel can be minimized by the volume of fuel in the first valve control chamber.

Abstract: The invention relates to a hydraulically actuated cutoff valve which is provided as an intake valve for switching between a master cylinder and an intake side of a feed pump of a slip-controlled vehicle brake system. The invention sets forth that the cutoff valve is embodied with a valve closing body that has a valve tappet which passes through an annular actuating element and is in engagement with a rocker element embodied as a cup spring, which rests on an annular pivot bearing. If the actuating element is acted upon by pressure, it presses down an outer edge of the rocker element, and as a result a middle of the actuating element executes a pivoting motion in the opposite direction that closes the cutoff valve. The invention has the advantage of an economical cutoff valve that has only a small number of components, and the invention can be used in a hydraulic vehicle brake system.

Abstract: An electric motor, including at least two permanent magnet segments disposed around a motor longitudinal axis, in which each permanent magnet segment has end faces extending in the direction of the motor longitudinal axis and is encompassed by two independent yoke ring segments that have a gap between them parallel to a symmetry plane extending through the motor longitudinal axis and the center of the permanent magnet segments in order to reduce the armature transverse field. In addition to the reduction of the armature transverse field, a weight reduction of the electric motor is also achieved. To this end, in a first region close to the end faces of the permanent magnet segments, the one-piece magnetically conductive yoke is provided with a larger cross section than in a second region close to the symmetry plane extending through the center of the permanent magnet segments. The construction is particularly suited for small electric motors, in particular d.c. motors that are excited by permanent magnets.

Abstract: A high-pressure pump for supplying fuel in a fuel injection system of an internal combustion engine, including a common rail injector system. The fuel injection system includes a low-pressure part that contains a fuel tank and a prefeed pump and a high-pressure part that contains a high-pressure pump and a common rail into which a fuel flow is fed from the high-pressure pump through a common conduit. The high-pressure pump system solves a problem in that there is an integrated demand-based quantity control for the fuel flow pumped by the high-pressure pump. The demand-based quantity control integrated with the high-pressure pump contributes to improving the overall engine efficiency, because the power consumption by the high-pressure pump drops as a result.

Abstract: A fuel injection valve for internal combustion engines, having a fuel inlet conduit, which originates at a connection stub and discharges at at least one injection opening. A rodlike fuel filter is inserted into the fuel inlet conduit and is guided in the inlet conduit on opposite axial ends. Two groups of longitudinal grooves are formed in the jacket face each of which are axially closed on one end. The first group of longitudinal groove originate at an upper end face of the fuel filter remote from the injection opening, and the second group originates at a lower fuel filter end face oriented toward the injection opening. The size of the flow cross section at the fuel filter and the size of the flow cross section of the inlet conduit in the region downstream of the fuel filter amounts to from approximately 5-10 times the size of the total flow cross section of all the injection openings in the fuel injection valve.

Abstract: A hydraulic vehicle brake system in which normal service brake operation can be carried out by using external hydraulic energy, and in the event of a lack of external hydraulic energy, auxiliary brake operation by muscle power is possible, with a hydraulic transmission that comes from a master cylinder that can be actuated by means of the brake pedal. The external hydraulic energy is stored, for example, in an accumulator with a gas buffer, which can lead to a gas content in the hydraulic fluid for the service brake operation. The system includes a dual-circuit master cylinder associated with those wheel brakes of a vehicle axle that make a higher contribution to the vehicle deceleration and at the same time, cylinder/piston devices are installed between these wheel brakes and their associated service brake valves for the purpose of preventing hydraulic fluid from getting into these wheel brakes from the external energy source.

Abstract: A fuel delivery pump for a fuel injection pump for internal combustion engines, including a pair of gears that mesh with each other and are driven to rotate in a pump chamber. The pair of gears deliver fuel from an intake chamber connected to a storage tank, along a supply conduit that is formed between the end face of the gears and the circumference wall of the pump chamber, into a pressure chamber connected to the fuel injection pump. A conduit is provided that connects the intake chamber to the pressure chamber. The conduit can be connected to a ventilation device, and that upstream and downstream of the ventilation device, a pressure valve is provided for a directed fuel flow in the conduit.

Abstract: In a diagnosis module for leak testing a container of a tank ventilation system of a motor vehicle, which has a reference leak through which a volume flows and is matched to a permissible leakage of the container. The reference leak is constituted by a number of diaphragms disposed in series in the flow direction, in which each of the diaphragms have a throttle opening (25 27). The advantage of this diagnosis module lies in the large diameter throttle openings, which are less susceptible to malfunction when there is a permitted leakage hole that has a significantly smaller diameter.

Abstract: A method for treating waste gases contaminated with toxic or odorous compounds in the form of a mist using a regenerative incinerator system is provided. The contaminated waste gas is passed through a first regenerator so that the waste gas is heated by contact with the packing material contained therein. This hot contaminated waste gas is passed through a combustion chamber to oxidize the compounds in the waste gas. The hot treated waste gas is passed through another regenerator to cool the gas and heat the packing material contained therein. The cleaned gas is discharged. Part of the cleaned gas is heated and passed through the regenerator to volatilize and/or remove compounds remaining in the regenerator after passage of the waste gas, thereby cleaning the regenerator.

Abstract: The invention relates to a braking device (10) having a spindle gear (18, 20) for actuating a friction brake (14, 16), a gear drive (30, 36) for driving the spindle gear (18, 20) and having an electric motor (40) for driving the gear drive (30, 36). For safety reasons, the invention proposes a second electric return motor (34) for releasing the friction brake (14, 16). Particularly when the two electric motors (34, 40) are connected to mutually independent power supplies, this has the advantage that the friction brake (14, 16), if one of the two electric motors (34, 40) or one of the two power supplies fails, can be released with the other electric motor (40, 34).

Abstract: A valve control device for an internal combustion engine having a gas exchange valve for controlling an inlet and/or outlet cross section in the combustion chamber of the engine. The valve control device has an axially movable gas exchange valve member whose valve member shaft is coupled to a piston rod to a differential piston that can be hydraulically actuated. The differential piston is embodied as two piston parts, wherein the two piston parts are disposed in relation to one another in such a way that they are operatively connected to each other in the axial direction and can execute a radial relative movement in relation to each other.

Abstract: In known methods for producing rotationally symmetrical valve seat faces, the valve closing body is brought into contact with the valve seat face of the valve seat body, set into a rotary motion, and set parallel to the rotary axis into an oscillating motion of high frequency. When the valve is assembled, care must then be taken that this pairing of the valve closing body and the valve seat body is preserved. In the novel method, the valve seat body is inserted into a receiving body and fixed by means of a tappet. A spherical tool body engages the valve seat face of the valve seat body with a contact pressure force and rotates in a rotary direction that is opposite a rotary direction of the valve seat body.

Abstract: The invention relates to a motor-pump arrangement, having a cup-shaped motor housing for receiving an electric motor, and a pump housing that can be mounted on the motor housing. The pump housing can be mounted on the face end (R) of the motor housing opposite the cup bottom, and that a cap is provided, which can be pressed into the motor housing on the open face end and seals off this housing, the cap has a central bore for a drive shaft and at least one further opening, near the edge, for a through-plated hole.