摘要:
The present invention concerns a synchronous generator of a gearless wind power installation, comprising a stator and a multi-part external rotor. The invention also concerns a wind power installation having such a generator. Furthermore the present invention concerns a transport arrangement for transporting a synchronous generator of a gearless wind power installation.
摘要:
An electrical power supply device (10) for electrically powering equipment on a rotary rotor (2) of an aircraft (1), which rotor is driven by a shaft (5), said device (10) comprising a removable stick (11). The stick (11) includes an upper alternator (20) and an upper tube (12) secured to said shaft (5) so as to be constrained in rotation therewith, said upper alternator (20) having a plurality of upper coils (21) fastened to an upper inside peripheral surface (12′) of said upper tube (12), said stick (11) having a rod (13) carrying an upper permanent magnet (22), said device (10) having a mechanism (30) so that said rod (13) and said upper tube (12) move with distinct rotary movements, said mechanism (30) having connection means (31) so as to be connectable to a reference member (8, 9) of an aircraft (1).
摘要:
A generator, such as for a gas turbine engine, includes an integrated auto transformer unit having secondary windings connected to a main windings.
摘要:
The present invention relates to an apparatus for generating high frequency electromagnetic field with adjustable magnetic field intensity and waveform and water purification system comprising the same. The apparatus for generating high frequency electromagnetic field is comprising of a user input unit into where the user can input; a quantum field generator for generating a quantum field of high voltage which is capable of adjusting output voltage; a wave generator for generating high-frequency signals of variable waveforms and matching with the quantum field; a high-frequency output unit for scanning the matched quantum field of high frequency; and a controller that controls magnitude of output voltage from the quantum field generator and output frequency from the wave generator. Therefore, the present invention provides the apparatus for generating high frequency electromagnetic field with extra high voltage at low cost which can treat waste water effectively according to characteristics of a contaminant and has no fear of secondary contamination.
摘要:
Disclosed is a non-grid-connected wind turbine generator system with high power, low cost and high efficiency. The wind turbine generator system includes a wind rotor, a generator and a tower. The wind rotor is a fixed-pitch variable-rotation-speed wind rotor, the wind rotor shaft directly drives a rotor of the generator, and the generator is a power-controlled DC generator, a double-salient brushless DC generator, or a double-stator double-salient brushless DC generator. The rotation speed of the fixed-pitch wind rotor is directly controlled by a power-controlled generator and thereby the attack angle of wind rotor blade is controlled. When wind speed is greater than rated wind speed of the system, the wind rotor is controlled into a state of blade stall so as to limit power output of the wind rotor and effectively broaden the wind speed range of wind rotor.
摘要:
According to the present invention, an alternator includes a rotor, a stator, and at least one cooling fan. The rotor includes a rotary shaft, a field core, and a field coil. The field coil has first and second ends that are opposite to each other in an axial direction of the rotary shaft. The stator includes an armature core and an armature coil. The armature core has first and second ends that are opposite to each other in the axial direction. The first end of the armature core is closer to the first end than the second end of the field coil. An axial distance between the first and second ends of the field coil is less than that between the first and second ends of the armature core. The first end of the field coil protrudes outward from the first end of the armature core in the axial direction.
摘要:
A rotor in an electrical machine, the rotor comprises a magnetic core having at least two poles, a plurality of winding assemblies, one for each pole, and a cylindrical tube enclosing the magnetic core and winding assemblies, the tube including a plurality of rings having different axial widths. Each of the rings is axially spaced apart from an adjacent ring. The respective axial widths of the rings become progressively smaller than the axial width of the ring axially located at or near the center of the tube as the axial distance away from the center of the tube increases. A plurality of winding braces are coupled to at least one of the winding assemblies, the winding braces having different radial heights.
摘要:
A magnetic resistance device includes a coil member fixed to a shaft and enclosed by a ring member so that the coil member is rotatable relative to the ring member. The ring member is clamped between a fly wheel and a cap. Two bearings are respectively mounted to the shaft and engaged with the fly wheel and the cap. A driving sleeve has a first end inserted in a central hole in the fly wheel and a one-direction bearing is mounted to the first end of the driving sleeve and engaged with the central hole of the fly wheel. A second end of the driving sleeve extends beyond a side of the fly wheel so as to connected to a driving power source via a belt. The coil member is powered by electric power and generates magnetic resistance force when it has relative movement to the ring member.
摘要:
An alternator for motor vehicles having a housing for holding a stator between front and rear brackets comprising side mounting sections formed integrally with the front and rear brackets and having mounting holes to be directly mounted to an engine by mounting tools, wherein each mounting hole comprises at least three U-groove holes formed by a trimming die, provided through in a direction perpendicular to an axial direction of a rotary shaft of the alternator, and are opened in the same axial direction as the rotary shaft, the three holes being opened alternately in opposite directions one by one; and wherein at least one of the side mounting sections has positioning holes for positioning circumferentially the front and rear brackets provided through the mounting holes in the axial direction of the rotary shaft. Since the alternator has the mounting holes of superior vibration resistance formed by the trimming die in a casting, the number of working steps of the housing may be reduced and any defect in the manufacturing of the positioning holes associated with the mounting holes is prevented. As a result, the quality of the housing is improved.
摘要:
A stator of a vehicle mounted alternator having a rotor and a rectifier includes an armature core formed in an inner periphery thereof with a plurality of slots and three-phase armature coils wound in respective slots, coil lead terminals and a neutral lead terminal of the armature coils for each phase being arranged in a limited area so that connections thereof to said rectifier of the alternator are facilitated. The neutral leads for three phases are derived directly at a position between the coil leads, and at least one metal binder for bundling and electrically connecting the neutral leads together at the point is provided, from which a neutral lead terminal to be connected to the rectifier is derived.