32results about How to "Wide operating speed range" patented technology

The present invention relates to a magnetic steel embedded hybrid excitation motor. The magnetic steel embedded hybrid excitation motor comprises a stator 9 and a rotor 10 arranged inside the stator 9, the stator 9 is made of a stator iron core in which an armature winding 1 is embedded, and the rotor 10 comprises a rotor punching 5, magnetic steels 6 and exciting windings 23, wherein a plurality of punching grooves are arranged on the rotor punching 5 evenly, so that the rotor 10 forms a plurality of magnetic poles. The magnetic steels 6 are embedded in the sides of the magnetic poles close to an excircle and are distributed alternatively along with the N and S poles of the rotor 10, and the exciting windings 3 are wound on the magnetic poles of the rotor 10 directly and are distributed alternatively along with the N and S poles of the rotor 10 in the clockwise and anticlockwise directions. The magnetic steel embedded hybrid excitation motor of the present invention is simple in structure and low in cost, is easy to produce, use and popularize, is especially suitable for a large-power automobile integrated starter generator, enables the moment density and the working rotating speed range of a system to be improved effectively, also can used as a driving motor, and enables the motor power density to be improved effectively.

The present invention proposes a multi-mode drive system for a hybrid vehicle, including an engine, a generator, a drive motor, a planetary gear mechanism, an input shaft, an input shaft of a generator, an intermediate shaft, an output shaft of a drive motor, an output shaft and a differential, The engine is connected to the input shaft through a torsional shock absorber. The input shaft is coaxially arranged with the input shaft of the generator, and arranged parallel to the output shaft, intermediate shaft and output shaft of the driving motor. The planetary gear mechanism is installed on the input shaft of the generator. The end of the shaft is connected with the planet carrier, the first gear and the second gear are installed on the input shaft, the third gear and the fourth gear are installed on the intermediate shaft, and the fifth, sixth, and seventh gears are installed on the output shaft in sequence. The eighth gear is arranged on the output shaft of the driving motor, the sixth gear and the seventh gear mesh with the first and second gears, the third gear and the fourth gear respectively, and the differential gear is arranged on the differential, and the second The fifth gear meshes with the differential gear and the eighth gear respectively. The present invention has a compact structure and can realize driving in various functional modes.

The invention relates to a low-speed high-thrust-density linear motor which comprises a motor short primary and a motor long secondary arranged opposite to the motor short primary, wherein an air gap (5) is reserved between the motor short primary and the motor long secondary; the motor short primary comprises a stator core (1), stator teeth (3) uniformly distributed at the periphery of the stator core (1), a stator winding (2) and stator permanent magnets (4); the stator core (1) is of an open slot stator structure, i.e., the stator core (1) is provided with a stator slot (8), the stator permanent magnets (4) are uniformly distributed between every two adjacent stator teeth (3), and the stator winding (2) is inserted into the stator slot (8); the motor long secondary comprises an active cell yoke (7) and active cell permanent magnets (6); and the active cell permanent magnets (6) are embedded into the active cell yoke (7) alternately and equidistantly in a horizontal direction. In the low-speed high-thrust-density linear motor provided by the invention, the magnetic modulation rings in a magnetic gear are replaced by the stator teeth, thereby simplifying the machining process, improving the reliability of the device and reducing the system manufacturing cost.

The invention discloses a pole-changing memory motor with fractional-slot concentrated windings without changing winding arrangement. The pole-changing memory motor comprises a stator and a rotor, wherein the stator comprises a stator core and armature windings; the fractional-slot concentrated windings are adopted as the armature windings and are sequentially arranged according to phase sequences; and the rotor comprises a rotor core, high-coercivity permanent magnets and low-coercivity permanent magnets. According to the pole-changing memory motor disclosed by the invention, the winding connection mode does not need to be changed before and after pole changing and only the phase sequences of two phases need to be exchanged; and in the pole changing process, magnetization directions of the low-coercivity permanent magnets are changed through applying direct-axis current pulses in different directions to the armature windings, so that changing of the number of poles of the motor is achieved. The speed range of a permanent magnet motor can be expanded through pole-changing speed regulation, the iron loss of the motor in a high-speed area can be effectively reduced and the operating efficiency of the motor in the high-speed area is improved.

The invention relates to a rotating jet internal combustion engine. The rotating jet internal combustion engine comprises an electric control unit, a rotating jet combustion chamber assembly, an air compression system, an air storage device, a cooling system, a fuel supply system, a lubricating system, power generation storage equipment, an emergency starting motor and a tail gas treatment device. The fuel supply system is connected with the air compression system; the air compression system is connected with the air storage device; the air storage device is connected with the rotating jet combustion chamber assembly; the rotating jet combustion chamber assembly is connected with a power output shaft; the power output shaft is connected with the air compression system; the rotating jet combustion chamber assembly is further connected with the cooling system and the tail gas treatment device. According to the rotating jet internal combustion engine, the air storage tank is combined with the rotating jet combustion chamber assembly, a fuel and air mixture is combusted in the rotating jet combustion chamber assembly to output power, and the internal combustion engine can stably run under various working conditions; the problems that an existing internal combustion engine is low in heat efficiency, narrow in working rotating speed range and the like are solved; the internal combustion engine has the advantages of being wide in working rotating speed range, high in compression ratio, high in combustion efficiency and the like.