Abstract: An implant with which prostates of different sizes can be treated is achieved by the fact that the length of a deployed implant is modifiable to a variable extent. Through the change of length of a stretched-out wire structure of the implant, the implant can be adapted individually to the patient anatomy and the outcome of treatment can thus be improved.

Abstract: The invention relates to a method for recycling waste in the form of flakes containing plastics-based materials, the flakes; —compacting the flakes and feeding them into a plasticizing tool; —melting and kneading the flakes in the plasticizing tool; —injecting the extruded material under high pressure into a mould to form a component; —using the decomposition gases generated by the heating and the pressurizing of the material recycled in the plasticizing tool to lubricate the material as it is injected into the mould and to compensate for the shrinkage of the material as it cools without supplying additional gas; —cooling the mould; —extracting the component from the mould.

Abstract: A method for ascertaining the absolute fuel injection quantity of the injectors of an internal combustion engine including a cylinder number, the average absolute total injection quantity of the injectors being ascertained based on a run-up test in which all cylinders of the engine are active, recorded measurement data, and a predetermined engine-specific factor which is proportional to the moment of inertia of the engine when all cylinders are active, and the measurement data being essentially suited for describing the chronological progression of the engine speed during the run-up test, in particular a reached maximum engine speed, a first rate of change of the engine speed during the run-up with active injection, a second rate of change of the engine speed with inactive injection, and an idling speed of the engine.

Abstract: In a method for determining the lambda value with a broadband lambda sensor of an internal combustion engine, a measurement current is supplied by the lambda sensor, which measurement current is proportional to the oxygen content or rich gas content in the exhaust gas of the internal combustion engine, and the corresponding proportionality factor is determined by a thrust comparison. The thrust comparison uses the O2 concentration of dry air as reference, independent of an actually present air humidity, and the lambda value is calculated on the basis of a modified Pischinger conversion equation in which a signal supplied by a humidity sensor is taken into account.

Abstract: In a method for calibrating a measuring signal of an exhaust gas probe or a control signal of a fuel dosing device of a vehicle equipped with a hybrid drive including an internal combustion engine and at least one electric motor, the vehicle being able to be driven also by an electric motor exclusively, the gas transport for calibrating the signal of the exhaust gas probe or the fuel dosing device is induced by an engine drag operation of the vehicle, in which the internal combustion engine is dragged by the at least one electric motor while the fuel supply is deactivated.

Abstract: A wheel bearing arrangement with first rolling elements, which are capable of rolling on a first inner ring, wherein the rolling elements are guided by a first roller bearing cage, and an axial spacer element is provided for spacing apart the first inner ring from a bearing element, wherein the bearing element can in particular be a second inner ring. The intention is to facilitate the complex installation of the individual parts in wheel bearings for utility vehicles. The first rolling element cage forms, together with the axial spacer element, an axial form-fitting connection. The spacer element can be fixed to at least one of the inner rings via the form-fitting connection to the cage prior to tightening the wheel hub, together with the wheel bearing preinstalled thereon.

Abstract: A wheel bearing unit having a wheel hub which is mounted rotatably on a bearing journal by means of two tapered roller bearings which are spaced apart axially. The wheel bearing includes one outer ring, one inner ring and one roller crown ring which is formed from tapered rollers and a bearing cage. The tapered roller bearings are received by their outer rings on one axial stop of the wheel hub such that they are directed counter to one another, and the inner rings of the tapered roller bearings are spaced apart axially from one another by means of a sleeve wherein the wheel hub, tapered roller bearing and sleeve form a self-retaining assembly in the non-installed state of the wheel bearing unit. Both tapered roller bearings are secured axially by one securing means which is received directly on the wheel hub and covers the roller crown ring radially.

Abstract: In a method for calibrating a measuring signal of an exhaust gas probe or a control signal of a fuel dosing device of a vehicle equipped with a hybrid drive including an internal combustion engine and at least one electric motor, the vehicle being able to be driven also by an electric motor exclusively, the gas transport for calibrating the signal of the exhaust gas probe or the fuel dosing device is induced by an engine drag operation of the vehicle, in which the internal combustion engine is dragged by the at least one electric motor while the fuel supply is deactivated.

Abstract: A wheel bearing arrangement with first rolling elements, which are capable of rolling on a first inner ring, wherein the rolling elements are guided by a first roller bearing cage, and an axial spacer element is provided for spacing apart the first inner ring from a bearing element, wherein the bearing element can in particular be a second inner ring. The intention is to facilitate the complex installation of the individual parts in wheel bearings for utility vehicles. The first rolling element cage forms, together with the axial spacer element, an axial form-fitting connection. The spacer element can be fixed to at least one of the inner rings via the form-fitting connection to the cage prior to tightening the wheel hub, together with the wheel bearing preinstalled thereon.

Abstract: A wheel bearing unit having a wheel hub which is mounted rotatably on a bearing journal by means of two tapered roller bearings which are spaced apart axially. The wheel bearing includes one outer ring, one inner ring and one roller crown ring which is formed from tapered rollers and a bearing cage. The tapered roller bearings are received by their outer rings on one axial stop of the wheel hub such that they are directed counter to one another, and the inner rings of the tapered roller bearings are spaced apart axially from one another by means of a sleeve wherein the wheel hub, tapered roller bearing and sleeve form a self-retaining assembly in the non-installed state of the wheel bearing unit. Both tapered roller bearings are secured axially by one securing means which is received directly on the wheel hub and covers the roller crown ring radially.

Abstract: A process for purifying an aqueous glyoxal solution comprising at least one acid by extractive acid removal, comprising i) mixing and dispersion of the aqueous glyoxal solution with an ion exchanger solution comprising a tertiary amine and an organic solvent, ii) phase separation and removal of the ion exchanger solution laden with the acid from the aqueous glyoxal solution, and iii) regeneration of the ion exchanger solution by contacting with a basic compound for neutralization of the acid and removal of the basic compound, iv) mixing and dispersion of the ion exchanger solution with water to obtain a dispersion of water and ion exchanger solution, v) Phase separation and removal of the aqueous phase from the ion exchanger solution in such a way that the content of the aqueous phase of the regenerated ion exchanger solution is <1% by weight, and recycling of the ion exchanger solution into step i).

Abstract: The invention relates to a method for producing shaped, activated charcoal. According to the method, after being ground, carbon-bearing material, or a mixture of several carbon-bearing materials are rendered homogenous with a binding agent which contains water, or a mixture of several binding agents, at least one of which contains water. The mixture of carbon-bearing material and binding agent is then formed into shaped bodies. According to the invention, in order to consolidate the grain formation, these are dried until they exhibit a maximum total water content of 3% by wt. in relation to the shaped body. The shaped bodies which have been formed and dried in this manner are then subjected to a carbonization and subsequently a gas activation process.