Abstract: An ignition coil, in particular for an internal combustion engine in a vehicle, is described. The ignition coil includes a housing, a primary winding and a secondary winding, and an electronic component, a highly heat-conducting, electrically insulating, elastic heat-conducting element, which is situated between the electronic component and the housing, and a thermally and electrically insulating casting compound, which is introduced into the housing in order to fill interspaces in the housing, the heat-conducting element touching the electronic component.

Abstract: An ignition coil, in particular for an internal combustion engine in a vehicle, is described. The ignition coil includes a housing, a primary winding and a secondary winding, and an electronic component, a highly heat-conducting, electrically insulating, elastic heat-conducting element, which is situated between the electronic component and the housing, and a thermally and electrically insulating casting compound, which is introduced into the housing in order to fill interspaces in the housing, the heat-conducting element touching the electronic component.

Abstract: An ignition coil, in particular for an internal combustion engine of a motor vehicle, has an inner magnet core, which is concentrically surrounded by a primary coil and a secondary coil. The inner magnet core acts together with an outer C-shaped magnet core. To minimize the size of the ignition coil, a provision is made in particular to adapt the height of the outer magnet core to the height of the secondary coil. It is furthermore provided to develop the outer magnet core from multiple sheet metal elements, which may be manufactured by a punching/bending process. This makes it possible to achieve a particularly cost-effective manufacture.

Abstract: The invention relates to a brake control device comprising: a liquid reservoir (4), a master cylinder (2), and a valve (14) able to allow the liquid of the cylinder in the reservoir to rise by offering a first minimum flow cross section (31). The valve is able to allow the rise by offering a second minimum flow cross section (33) which is larger than the first cross section when a pressure in the cylinder exceeds a given threshold.

Abstract: This invention relates to a housing for receiving a reaction disk in a pneumatic servomotor. The housing and reaction disk co-operate to resist too fast a forward travel of a piston when the brake is actuated and thereby avoid an undesired reopening of a passage connecting a front chamber with a rear chamber in a brake booster during a brake application. The reaction disk (39) is located in an inner space of the housing (47) that has a greater size than the volume of the disk (39). The disk (39) is initially deformed to completely fill the housing (47) by an input force corresponding to a desired brake application to limit the forward speed of the pneumatic piston and only thereafter as a reaction force develops during the brake application, does the reaction force balance the input force applied to the disk (39) during a brake application.

Abstract: This invention mainly relates to a receiving housing for a reaction disk and to a pneumatic servomotor for an assisted braking, including such housing fitted with its reaction disk.

Abstract: A pressure modulator for a hydraulic brake system having a first cylinder bore with a servo piston, a second cylinder bore with a control piston, and a guide bore connecting the first cylinder bore to the second cylinder bore, in which a control tappet is disposed in a guide bore. An exact guidance of the servo piston in the first cylinder bore of the pressure modulator is assured. A control tappet is arranged, in the guide bore and the servo piston, on an end toward the control tappet, has a tappet extension that protrudes into the guide bore of the housing. In this way, exact guidance of the servo piston is assured. The novel pressure modulator is especially suitable for hydraulic brake systems of motor vehicles.

Abstract: A fuel injection valve and method for adjusting the static fuel quantity output ejected during the steady opening state of the fuel injection valve. In the method according to the invention, the static fuel quantity is adjusted directly in the otherwise completely installed fuel injection valve, so that a variation on the static fuel quantity of the various fuel injection valves is minimized. To this end, a throttle device, serving to meter the fuel and whose free flow cross section is variable, is provided upstream of the valve seat. The method according to the invention is suitable for fuel injection valves of various kinds.

Abstract: An electromagnetically operated injection valve including a fuel filter that has a filter housing on which a return spring is supported and which includes a frame that is pressed into a flow hole so that the force introduced by the return spring onto the fuel filter is guided via the filter housing and the frame pressed into the core. This obviates the need for a setting bushing for setting the spring force. The injection valve is particularly suitable for fuel injection units of mixture compressing spark ignited internal combustion engines.

Abstract: An injection valve, which overcomes residual magnetic forces and cohesive forces that act between the armature and the core to make the armature stick to the core, impeding the closing motion of the valve needle. The injection valve has a spring adjusting sleeve and a stroke adjusting sleeve for the separate adjustment of the spring force of a restoring spring and of the stroke of the valve needle: these sleeves are disposed in a through bore of a valve end cap. The stroke of the valve needle is limited by a downstream end face of the stroke adjusting sleeve, which when the injection valve is fully open rests on an upstream face end of a fastening segment of the valve needle. A remanent air gap is left between the armature and the core. The novel injection valve is especially suitable for fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition.

Abstract: A novel valve, including a restoring spring which is pressed into a spring chamber opening and is held in the spring chamber opening by a radially oriented tension on one end of the spring; the depth to which the restoring spring is pressed determines the magnitude of the spring force acting upon the valve closing part. By dispensing with an adjusting sheath, not only is the danger of chip formation in the press-fitting operation lessened, but the production cost of the valve is reduced substantially as well. The valve is used as a fuel injection valve for fuel injection systems.

Abstract: An improve the pump including a reciprocal piston pump having a pump piston, guided longitudinally displaceable in a displacement chamber. An outlet valve for the admission of pressure means and a valve for the outflow of pressure means is associated with the displacement chamber. The outlet valve is embodied as a cup-shaped sleeve, having on the outflow side a sealing lip of an elastomeric material, which cooperates with a cylindrical sealing face. The outlet valve is distinguished by low opening pressure, reduced noise when closing and reduced machining effort. The reciprocating piston pump (10) is intended for use in hydraulic brake installations of motor vehicles with ABS systems.

Abstract: A hydraulic dual-circuit brake system with anti-skid braking (ABS) and traction control (ASR) for motor vehicles having control valve assemblies, each control valve assigned to one wheel brake cylinder of a vehicle wheel for feeding a wheel-slip-dependent brake pressure, and includes one return pump with two separate pump elements for each brake circuit. For supplying brake pressure in traction control, a precharge pump and a valve unit are provided. In the traction control mode the precharge pump feeds brake fluid from a brake fluid tank into the pump element associated with the brake circuit of the driven wheels while the valve unit disconnects the pump element from the master brake cylinder and connects it to the brake fluid tank via a pressure limiting valve. A check valve prevents brake fluid from flowing into the ABS brake circuit during this process via the pressure limiting valve.

Abstract: A slip control system for a hydraulic brake system of a vehicle, which comprises a pressure generator having a plunger piston, which plunges into a cylinder filled with brake fluid and is connected to a rack. For the forward drive of the plunger piston, an electric drive motor is provided, which via a gear drive drives a pinion meshing with the rack. For the return drive of the plunger piston, a spiral spring is used that engages on one end with pinion shaft and on the other is supported on the pressure generator housing. The use of the spiral spring makes a short axial structural length of the pressure generator attainable. A grip roller free-wheel clutch is also provided in the drive train between the motor and the rack. The grip roller free-wheel clutch effects an uncoupling of the gear drive and the drive motor when the rack, at the end of the return stroke, strikes a stop of the pressure generator housing. This prevents damage to the gear drive and motor.

Abstract: A brake system including a traction control apparatus having at least one pressure generator 35, which has a cylinder 60 for receiving and expelling brake fluid by means of a piston 60. The cylinder 60 is connected, with a valve 72 actuatable as a function of the motion of the piston 50, to a pressure course between the master brake cylinder and a wheel brake cylinder. To attain a short structural length, on the one hand, and a long stroke of the pressure generator on the other, the piston is embodied as a rod piston; it is connected to a coaxially extending hollow cylinder 40 that envelops the piston 50 in the cylinder 60; the hollow cylinder 40 is longitudinally guided and is provided with a racklike set of teeth 41 on its outside for the engagement of a motor drive mechanism 43 for driving the piston relative to the cylinder.

Abstract: An apparatus for motor vehicles having traction control and/or anti-lock brakes. In a known apparatus, a distinction can be made between an unregulated and a regulated operating stage. In the regulated operating state, the position of a control device is determined by means of a control motor. In the unregulated operating state, a position of an operating element is transmitted to a control device with the aid of the transmission device. When the operating element is adjusted and the control device is restored by a restoring spring, however, a rotor of a control motor is adjusted along with them. This requires great actuation forces and a strong restoring spring. In this system, a third rotary element is provided. In the unregulated operating state, the third rotary element returns to a position of repose. In that case there is then no longer any operative connection between the transmission device and the control motor.

Abstract: A known valve controllable by means of an electromagnet includes at least one spring installed with prestressing, the prestressing of which must be within a relatively narrow tolerance range, if the valve is to function properly. Since then, when the valve has been assembled, the spring, which is subject to manufacturing tolerances, and other components subject to manufacturing tolerances, have been replaced with other components of different dimensions until a suitable prestressing was arrived at. The invention seeks to avoid this replacement work. The problem is solved by disposing an element that is displaceably installed so as to overcome frictional forces, and one end of a spring is supported on this element. One or more such elements are advantageously usable in multi-position magnetic valves, which for instance belong to vehicle brake systems and in particular to their anti-skid systems.

Abstract: A brake system having anti-skid control for motor vehicles has a brake booster having a brake valve and an emergency brake piston, and a master brake cylinder, combined in one housing with the brake booster having a master brake piston and two separate brake chambers, which supply brake fluid to one dynamic brake circuit and one static brake circuit (II and I), respectively. If the pressure fails, the master brake piston is mechanically actuated via the emergency brake piston. To attain a simple structure with a feedback-free brake pedal during anti-skid control, the emergency brake piston and the master brake piston are accommodated in a continuous housing bore such that the emergency brake piston forms the second defining wall for the first brake chamber, and the master brake piston rests with force on the emergency brake piston. A device for restoring the emergency brake piston upon the onset of the anti-skid control assure free mobility of the master brake piston.

Abstract: The proposed vehicle brake system has wheel brakes, a master brake cylinder, an auxiliary pressure source, and a brake booster supplied from it for actuating the master brake cylinder, as well as an apparatus capable of preventing the danger of skidding and limiting drive slip at driven wheels. To prevent the danger of skidding, valves disposed between the master brake cylinder and the wheel brakes are provided by means of which the wheel brakes can be disconnected from the master brake cylinder and connected to a pressure fluid supply container to reduce the brake pressure. For replacing the quantities of pressure fluid diverted into this pressure fluid supply container, the valves are connected to the brake booster. To enable limiting drive slip at driven wheels at little expense for additional valves, valves embodied as 2/2-way valves are connected between the wheel brakes of driven wheels and their associated valves also communicate with the auxiliary pressure source.

Abstract: An apparatus for actuating the throttle valve of an internal combustion engine, in particular a drive slip control (ASR) and engine drag moment control (MSR), with a disconnect point disposed in the course of the gas pedal transmission linkage overcome by spring forces acting on both sides of it. In the normal situation the throttle valve position corresponds to the driving pedal position, while in attaining ASR functions the disconnect point is opened, by the action of an electromagnetic or electric-motor element, and the position of the throttle valve is adjusted independently, regardless of the intention of the operator, in order to reduce the drive slip.