Patent application number | Description | Published |
20080252150 | Linear Actuator in an Electric Percussion Tool - A linear actuator in an electric percussion tool is equipped with a rotor 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, 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, are arranged at a predetermined distance from one another in the direction of movement of the rotor and 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 the rotor, and the rotor has a driving element which is able to transmit a mechanical impulse to a tool belonging to the electric percussion tool. | 10-16-2008 |
20080278229 | Active Compensation Filter - 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. | 11-13-2008 |
20080284259 | Linear Actuator - A linear actuator is provided with a rotor and a stator. The rotor comprises at least two stacks of permanently magnetic rods one over another, the stacks being arranged at a predetermined distance from each other. The stator is at least partly produced from a soft magnetic material, and comprises at least two pairs of teeth with teeth opposite each other, each pair of teeth receiving one of the two stacks between them while forming an air gap. The stator has at least two magnetically conducting inner areas which are located between the two stacks and arranged at a predetermined distance from each other in the direction of motion of the rotor. The inner areas are each at least partially surrounded by a substantially hollow cylindrical coil arrangement, the central longitudinal axis of which is oriented substantially transversely to the direction of motion of the rotor. | 11-20-2008 |
20090078798 | Fluid Injection Valve - A fluid injection valve has an inlet, which is set up to receive fluid from a supply line, and which is connected to a chamber, a fluid outlet, which is connected to the chamber, and which is set up to allow fluid to flow out of the fluid injection valve, and a valve arrangement, having a valve seat and a valve member, the valve member being set up to execute opening and closing movements relative to the valve seat. A linear actuator is set up to move the valve member relative to the valve seat, and a spring arrangement exerts on the valve member a spring force which is dependent on the fluid pressure prevailing in the chamber. | 03-26-2009 |
20090217892 | GAS EXCHANGE VALVE ACTUATOR FOR A VALVE-CONTROLLED INTERNAL COMBUSTION ENGINE - 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. | 09-03-2009 |
20100011766 | DEVICE FOR RECOVERING ELECTRICAL ENERGY FROM THE EXHAUST HEAT OF A COMBUSTION ENGINE OF A MOTOR VEHICLE, AND METHOD FOR RECOVERING ELECTRICAL ENERGY FROM THE EXHAUST HEAT OF A COMBUSTION ENGINE OF A MOTOR VEHICLE - 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. The device also has an electrical generator, which has a rotor which is coupled to the constant-pressure turbine and is to be put into rotation by it, and a stator with at least one stator winding, at which electrical power is to be taken. The device also has a condensation cooler, which is set up to liquefy steam which has done work on the constant-pressure turbine. Liquid which is obtained from this steam by condensation must be fed into an output-side inlet of the first heat exchanger. | 01-21-2010 |
20100109451 | ENERGY ACCUMULATOR COMPRISING A SWITCHED RELUCTANCE MACHINE - The energy storage device has an electrical machine ( | 05-06-2010 |
20100140380 | Fluid Injection Valve - A fluid injection valve having an inlet which is set up to receive fluid from a supply line and is connected to a chamber, a fluid outlet which is connected to the chamber, is set up to allow fluid to flow out of the fluid injection valve and has a valve arrangement having a valve seat and a valve element, wherein the valve element is set up to perform opening and closing movements relative to the valve seat, a linear actuator which is set up to move the valve element relative to the valve seat, and a spring arrangement which exerts on the valve element a force which is dependent on the fluid pressure prevailing in the chamber. | 06-10-2010 |
20100201183 | BRAKE UNIT OF A SLIP-CONTROLLED MOTOR VEHICLE BRAKE SYSTEM WITH A FLUID SUPPLY DEVICE - A brake unit of a slip-controlled motor vehicle brake system with a fluid supply device with an electrically operated fluid supply device provides a pressurised hydraulic or pneumatic fluid in the brake circuits of the brake system. The fluid supply device has a pressure chamber with at least one fluid inlet and at least one fluid outlet. One non-return valve each is provided at the fluid inlet and the fluid outlet. A piston which protrudes into the pressure chamber is movable at least into one of two end positions by means of an electric drive device. In the one end position, a minimum volume is defined by the pressure chamber and the piston. In the other end position, a maximum volume is defined by the pressure chamber and the piston. | 08-12-2010 |
20100219711 | Auxiliary Assembly of an Internal Combustion Engine - In the drive train of a combustion engine an auxiliary arrangement is arranged which is to be coupled with an axial flow machine comprising a stator and a rotor, in order to perform an actuating movement. The stator has a coil arrangement, and the rotor has an essentially cup-shaped support for permanent magnet elements. The coil arrangement of the stator has at least one cylindrical winding and is at least partially enclosed by two essentially pot-shaped magnetic flux yokes. Each of the pot-shaped magnetic flux yokes has side areas with magnetic flux poles whose outsides are oriented towards the permanent magnet elements of the rotor. The magnetic flux poles of the stator are arranged spaced apart from the permanent magnet elements of the rotor. The magnetic orientation of neighbouring permanent magnet elements towards the air gap alternates. | 09-02-2010 |
20100224149 | TIMING CHAIN DRIVE COMPRISING AN INTEGRATED ELECTRIC MOTOR - 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. | 09-09-2010 |
20100244786 | ENERGY STORAGE - The energy storage has an electrical machine with a rotor and a stator. The stator is separated from the rotor by an air gap and has at least one stator coil which, under operating conditions, interacts with the rotor via a rotating field. In one variant, the rotor surrounds the stator and is adapted to rotate about the stator. Another variant provides for the rotor to surround the stator and to be adapted to rotate within the stator. The rotor is associated with a rotating mass with which it forms a cylindrical body with two end faces and a lateral surface. In the area of at least one of its end to faces—in the installed position of the energy storage, of the bottom end face—the cylindrical body has at least one permanent magnet which corresponds with at least one stationary permanent magnet of identical polarity. | 09-30-2010 |
20100289348 | AXIAL FLOW MACHINE - In an electrical axial flow machine, comprising a stator and a rotor, wherein either the stator comprises a coil arrangement and the rotor is provided with permanent magnet elements, or wherein the rotor comprises a coil arrangement and the stator is provided with permanent magnet elements, the stator is arranged spaced from the rotor under the formation of an air gap, each of the magnetic flux yokes has several neighbouring magnetic flux poles, the coil arrangement has at least one hollow cylindrical winding which is at least partially encompassed by magnetic flux yokes, the magnetic flux poles each have an outside which is oriented to the permanent magnet elements beyond the air gap, neighbouring permanent magnet elements in the circumferential direction have an alternating magnetic orientation towards the air gap, at least several of the magnetic flux poles are in certain positions of the rotor relative to the stator at least partially oriented in alignment with the permanent magnet elements, the magnetic flux yokes are formed from several ring cylinder segments, one support disk each is arranged between neighbouring magnetic flux yokes for the ring cylinder segments of the magnetic flux yokes in the direction of a longitudinal centre axis of the magnetic flux yokes, with the support disk comprising means for the mechanic positioning of at least two ring cylinder segments, forms a thermal path to a heat sink and has an electrically insulating effect. | 11-18-2010 |
20100301685 | LINEAR MACHINE - Linear machine with a stator and a rotor, which are separated by an air gap and have at least one stator coil and/or one rotor coil respectively. The stator or rotor has a soft magnetic iron body with a stator back or rotor back, on which grooves are formed at a distance from each other, forming teeth. In the grooves, multiple conductor bars of the stator coil or rotor coil are arranged in rows. On the faces of the stator or rotor, end connectors which connect the conductor bars and extend over multiple grooves are present. Each conductor bar has a cavity on the face of at least one of its ends. Each end connector has an extension, which is arranged and dimensioned in such a way as to engage in an electrically conducting manner into the respective cavity of the conductor bar, on its section facing the respective front end of the conductor bars. | 12-02-2010 |
20100314963 | PERMANENTLY EXCITED ELECTRICAL MACHINE - The invention relates to a permanently-excited electrical machine with a stator and a rotor. The stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor comprises a coil arrangement and the stator is provided with permanent magnet elements. An air gap is formed between the stator and the rotor, which is defined by the permanent magnet elements and magnetically conductive teeth of the stator, which are aligned with these in certain positions. The coil arrangement comprises at least one hollow cylindrical winding which is at least partially accommodated in the stator. The rotor has a magnetic return on the sides of the permanent magnet elements, which are remote from the air gap. The magnetic return is formed of rings which are oriented in the circumferential direction of the rotor, and which in the axial direction of the rotor are not wider than individual ones of the permanent magnet elements. Electrically/magnetically effective short-circuit coils are arranged between neighbouring permanent magnet elements in the axial direction of the electrical machine and/or neighbouring magnetic return rings in the axial direction. | 12-16-2010 |
20120242181 | ELECTRIC MACHINE EXCITED BY PERMANENT MAGNETS - In order to provide a compact and highly efficient electric machine having high power density, an electric machine excited by permanent magnets, comprising a stator and a rotor, is provided. The stator comprises a coil arrangement and the rotor has permanent magnet elements. The coil arrangement comprises a winding and surrounds a flux yoke. The flux yoke comprises at least one limb. Between every two limbs, flux guide parts are arranged that are spaced apart from each other and that are aligned with the ends of the limbs. Neighbouring permanent magnet elements have opposing magnetic orientations and are combined to form a magnet disc. On the side facing away from the limbs of the permanent magnet elements, flux guide parts are arranged. The limbs and the flux guide parts face the permanent magnet elements forming an air gap. | 09-27-2012 |
20130015733 | TRANSVERSE FLUX MACHINEAANM Rasch; ReinhardAACI HechendorfAACO DEAAGP Rasch; Reinhard Hechendorf DEAANM Gruendl; AndreasAACI StarnbergAACO DEAAGP Gruendl; Andreas Starnberg DEAANM Hoffmann; BernhardAACI StarnbergAACO DEAAGP Hoffmann; Bernhard Starnberg DEAANM Loos; HeidimarieAACI TutzingAACO DEAAGP Loos; Heidimarie Tutzing DE - The invention relates to a transversal flux machine having a stator ( | 01-17-2013 |
20130299299 | CLUTCH TO BE ACTUATED ELECTRICALLY - A clutch has a stationary carrier, a first clutch member and a second clutch member. The first clutch member and the second clutch member are disposed so as to be rotatable about a common axis. The carrier has a coil arrangement, which is partially accommodated in a first partial core containing soft iron and which faces towards the first clutch member. The first clutch member has a second partial core, containing soft iron, having magnetic-flux poles that at least partially enclose the coil arrangement of the stationary carrier. The second clutch member has permanent-magnet elements, which face towards the magnetic-flux poles and which, are at least partially in alignment with at least some of the magnetic-flux poles. The first clutch member and the second clutch member are set up to transmit a torque and/or a rotary motion from the one clutch member to the other clutch member. | 11-14-2013 |