Abstract: An endoscope with a folding mechanism for foldably or bendably holding an endoscopy head at the distal end of the endoscope, preferably an endoscope shaft, having a number of axially successive segments that are adjustable via an actuating element. The segments define at least one channel for the passage of minimally invasive surgical instruments, flushing media, supply lines and the like. The segments are in the form of wedge-shaped cylinder sections having end faces oriented relative to each other in a wedge-shaped manner. Each cylinder section receives a cylinder jacket portion having a minimum axial length and an opposite cylinder jacket portion having a maximum axial length. Two directly adjacent segments are mutually oriented such that they are axially supported on or axially abut the relevant cylinder jacket portions of maximum axial length, which results in hinge- or joint-contact occurring on the support or placement point.

Abstract: An endoscope includes an endoscope body and a working channel for guiding medical tools and/or for the through-flow of media. The working channel extends in the longitudinal direction of the endoscope body and forms a working channel outlet in a distal end portion of the endoscope body. An endoscope head is arranged in a distal end region of the endoscope body and has at least one optical unit. The working channel is partially enclosed in the circumferential direction by a part of the endoscope body that is extensionally rigid in the radial direction, over a predefined circumferential portion, preferably one third to two thirds and more preferably more than half of the total circumference. The endoscope body is expandable at least in parts from a first state having a smaller cross-sectional area to a second state having an enlarged cross-sectional area.

Abstract: A brake unit for a hydraulic, single-circuit or multi-circuit braking system of a land vehicle, with fluid on-off valves to be operated electrically, an electronic closed-loop/open-loop control circuit to provide control signals for the fluid on-off valves by which the hydraulic pressure in the brake circuits is modulated, a unit body, which consists of at least two ceramic boards connected to each other, and which has the fluid on-off valves, hydraulic connecting lines between the fluid on-off valves being incorporated in the boards, and at least one of the boards being used as the carrier board for electrical/electronic components and electrical connecting lines of the electronic open-loop/closed-loop control circuit.

Abstract: A fuel injection valve for fuel injection systems of internal combustion engines, in particular for injecting fuel directly into a combustion chamber of an internal combustion engine, said fuel injection valve comprising a fuel inlet which is designed to allow fuel to flow into the fuel injection valve, and an actuating device which can be electrically activated and cooperates with a valve arrangement in order to discharge fuel into the combustion chamber in a directly or indirectly controlled manner via a fuel outlet the actuating device having a solenoid arrangement which is to be energized, a substantially magnetically soft magnet yoke arrangement which cooperates therewith, and a substantially magnetically soft magnet armature arrangement which cooperates therewith. The magnet yoke arrangement is constituted by at least two yoke discs. At least one of the faces of each yoke disc has at least one pole web which together with the solenoid arrangement acts upon the magnet armature arrangement.

Abstract: A gas exchange valve actuator for a valve-controlled internal combustion engine is equipped with a rotor, which is to be coupled to a valve member, and a stator, wherein the rotor has at least two stacks, which are arranged at a predetermined distance from one another, of superposed permanently magnetic bars, and the stator is formed, at least partially, from a soft-magnetic material and has at least two pairs of teeth with mutually opposed teeth, of which each pair of teeth receives one of the two stacks between them in each case, while forming an air gap, and wherein the stator has at least two magnetically conductive inner regions which are located between the two stacks and arranged at a predetermined distance from one another in the direction of movement of the rotor and which are at least partially surrounded, in each case, by an essentially hollow-cylindrical coil arrangement, the central longitudinal axis of which is oriented approximately transversely to the direction of movement of said rotor.

Abstract: The invention relates to a timing drive for an internal combustion engine, comprising a crankshaft, at least one camshaft, a driven gear that is connected to the crankshaft, at least one driving gear which drives the associated camshaft and a transmission that interconnects the driven gear and the at least one driving gear. An electric motor is provided which engages with the transmission in an offset manner relative to the crankshaft and the at least one camshaft as well as in an offset manner relative to the associated driven gear and the associated at least one driving gear by means of an intermediate gear. Furthermore, a control device is provided, with the aid of which the electric motor can be triggered in such a way that additional torque and/or an additional torque profile can be introduced into the transmission and/or can be tapped from the transmission based on at least one operational parameter and/or at least one operational situation of the transmission. Also disclosed is a corresponding method.

Abstract: An electronic assembly for switching electric power, comprising two power supply buses spaced from each other between which semiconductor switches to be driven by means of a control input are arranged at a power output for providing electric power, a capacitor arrangement bridging the two power supply buses, which extends at least partially over the length of the power supply buses, two contact layers originating from one each of the power supply buses and covering the capacitor arrangement at least partially, with the contact layers comprising free end portions which mutually project one another towards the respective other one of the power supply buses, and with the two contact layers having a freely accessible contact area each which is adapted for contact making with correspondingly configured power terminals.

Abstract: Device for recovering electrical energy from the exhaust heat of a combustion engine of a motor vehicle, with a heat exchanger, through which the exhaust gas of the combustion engine is to flow on the input side, and through which heat exchanger fluid, which in operation of the combustion engine is to be brought in the heat exchanger to a first, high temperature and/or pressure level, is to flow on the output side. The device has at least one Laval nozzle, which has an inlet and an outlet, the inlet of which is to be connected to an output-side outlet of the heat exchanger, the outlet of which is directed onto turbine blade wheels of a constant-pressure turbine, and which is dimensioned so that it loads the constant-pressure turbine with steam which has a lower second temperature and/or pressure level than the first, high temperature and/or pressure level and has a high flow velocity.

Abstract: Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.

Abstract: An active compensation filter for the application in the electric power supply in a land vehicle, which comprises a high-pass filter which is to be coupled with a supply voltage line which carries a supply voltage, in order to detect frequency and amplitude of interference voltage components of the supply voltage. A signal amplifier which is connected in series with the high-pass filter amplifies the detected interference voltage components and supplies them to a coupling element as output signals, which is connected in series with the signal amplifier and comprises a primary side and a secondary side. The primary side is fed with the output signals of the signal amplifier and the secondary side is looped into the supply voltage line.

Abstract: A gas exchange valve actuator for a valve-controlled internal combustion engine is equipped with a rotor, which is to be coupled to a valve member, and a stator, wherein the rotor has at least two stacks, which are arranged at a predetermined distance from one another, of superposed permanently magnetic bars, and the stator is formed, at least partially, from a soft-magnetic material and has at least two pairs of teeth with mutually opposed teeth, of which each pair of teeth receives one of the two stacks between them in each case, while forming an air gap, and wherein the stator has at least two magnetically conductive inner regions which are located between the two stacks and arranged at a predetermined distance from one another in the direction of movement of the rotor and which are at least partially surrounded, in each case, by an essentially hollow-cylindrical coil arrangement, the central longitudinal axis of which is oriented approximately transversely to the direction of movement of said rotor.

Abstract: A fuel injection valve for fuel injection systems of combustion engines, in particular for the direct injection of fuel into a combustion chamber of a combustion engine, comprising a fuel inlet which is adapted to have fuel flow into the fuel injection valve, an electrically controllable actuation means which cooperates with a valve arrangement in order to cause the fuel in a directly or indirectly controlled manner to exit into the combustion chamber through a fuel outlet, with the actuation means comprising a magnet coil arrangement to be supplied with current, an essentially soft magnetic magnet yoke arrangement cooperating with same, as well as an essentially soft magnetic magnet armature arrangement cooperating with same, with the magnet yoke arrangement and/or the magnet armature arrangement comprising a configuration which reduces eddy currents.

Abstract: A travelling field machine with a stator and a rotor which are separated by an air gap and each of which comprises at least one stator coil or one rotor coil, with the stator or the rotor, respectively, comprising a soft magnetic iron body with a stator or rotor back, in which spaced grooves are formed, generating teeth, and in each of the grooves several conductor bars of the stator coil or the rotor coil, respectively, are arranged in series comprising end connectors arranged at the faces of the stator or the rotor, respectively, which connect the conductor bars extending across at least one groove, with the conductor bars comprising conductor portions of different length projecting beyond the faces of the stator or rotor, respectively, and the end connectors being arranged in a stacked fashion in the axial direction at the faces of the stator or the rotor.

Abstract: A machine with transversal flux comprises a stator and a rotor. Therein, either the stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor may have a coil arrangement and the stator is provided with permanent magnet elements. The coil arrangement has at least one cylindrical winding and is encompassed by a magnetic flux yoke which in a sectional view along the centre longitudinal axis of the coil arrangement is approximately C-shaped. The magnetic flux yoke has a leg at each end which at least partially encompasses one face each of the coil arrangement. At one surface area of the coil arrangement several magnetic flux conducting pieces are arranged coaxially with the centre longitudinal axis of the coil arrangement in several rows. Under the formation of an air gap, the permanent magnet elements are arranged whose magnetic orientation towards the air gap is alternating.

Abstract: The invention concerns a fluid-cooled electrical machine with a housing in which are arranged a stator and a rotor with stator and/or rotor coils, wherein the electrical machine is coupled heat-conductively with a cooling device arranged on its periphery and connected with an electronic power control. The electronic power control is divided into several modules, each of which are electrically connected with at least one of the stator and/or rotor coils, wherein the modules are arranged distributed on the periphery of the electrical machine and coupled heat-conductively with the cooling device.

Abstract: The invention relates to a winding arrangement for an electric machine with a polyphase winding, in which a plurality of coils or coil groups connected in parallel (50, 52, 54, 56) are connected with a conductor rail (40, 42, 44, 46). This makes it possible to connect the coil ends directly and without connecting pieces with the electric power supply. The conductor rails (40, 42, 44, 46) are preferably arranged at one or both face sides of the post of the electric machine below the slot openings, i.e., in the area of the back of the post. Furthermore, the invention is aimed at an corresponding manufacturing method for a winding arrangement of a polyphase winding for an electric machine, in which the coils or coil groups connected in parallel (50, 52, 54, 56) of the winding are connected with one of the conductor rails (40, 42, 44, 46).

Abstract: The invention relates to an assembly of an electric machine with at least two abutting circular ring or circular disk-shaped sheet metal layers, wherein each of the sheet metal layers is formed by several circular ring or circular disk-shaped sheet metal segments which are arranged concentrically about a centre axis, of which two each are abutting under the formation of a connecting joint and comprise a predetermined minimum cross-sectional area in the radial direction, and with the sheet metal segments of abutting sheet metal layers partially overlapping one another in the circumferential direction and are joined by welds distributed along the circumferential area, with the number of welds between a connecting joint of two sheet metal segments of a sheet metal layer and a connecting joint of two sheet metal segments of a neighbouring sheet metal layer being calculated in such a manner that the sum of the effective areas of these welds is at least approximately equal to the predetermined minimum cross-section

Abstract: The invention concerns a winding for a post or an armature of an electric machine with a post or armature (32) with slots (34) composed at least in part of L-shaped structural parts (1, 2, 3). In doing so, one leg of an L-shaped structural part each time creates a slot bar (8a, 8b) located in a slot, and the other leg creates a connecting line (6a, 6b) located at a face of the post or armature. Moreover, the invention concerns a winding with several interlaced coils (50, 52, 50?, 52?, 50?, 52?) whereby the connecting lines (6) of interlaced coils (50, 52, 52?, 50?, 52?) are staggered and therefore arranged in layers. The invention furthermore concerns a winding with connecting lines (6) flatter than the slot bars (8), styled as a fractional pitched polyphase winding with two slots per pole and branch.

Abstract: A turbo-compressor (20, 121) for a piston combustion engine (10), with the turbo-compressor (20, 121) comprising a fresh air inlet (24) and a fresh air outlet (26), with the turbo-compressor (20, 121) to be connected with the combustion engine (10) via the fresh air outlet (26), the turbo-compressor (20, 121) comprising a transmission shaft (32) coupled with an electric machine (30) for at least one compressor wheel (34), in order to set the compressor wheel (34) in rotation via the electric machine (30), whereby compressed fresh air is provided at the fresh air outlet (26) for the combustion engine (10), and with the electric machine (30) being a reluctance machine.

Abstract: The present invention relates to a gas exchange valve drive for a valve-controlled combustion engine with a hollow cylindrical rotor (16) to be coupled with a valve member (12) and a stator (18), wherein the rotor (16) comprises permanent-magnetic rings (30) concentrically arranged one above the other, the stator (18) is at least partially constructed of a soft magnetic material and comprises at least one tooth (22) facing towards the rotor (16), the stator (18) comprises a radially inner magnetically conductive area (50) and a radially outer magnetically conductive area (52), with the rings (30) of the rotor (16) being arranged between the inner area (50) and the outer area (52) of the stator (18), and the outer area (52) of the stator (18) in at least one partial section (54) is designed with a C-shaped cross-section and comprises at least one stator coil (28).