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WO/1992/020142A1 |
The aim of the invention is to obtain a process for operating a permanently excited single-phase alternating current machine which allows optimal exploitation of the machine and economical design of the converter. The process of the inve...
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WO/1992/020134A1 |
The aim of the invention is to obtain a tubular turbine synchronous generator of cost-effective design and improved reliability. A tubular turbine synchronous generator has a stator (1) and a rotor (2) arranged in a tubular turbine housi...
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WO/1992/014297A1 |
A reluctance-type electric motor capable of running at a high speed and producing a large output torque includes transistors (20a to 20f) connected to both ends of excitation coils (39a to 39c) of each of the phases, a current control ci...
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WO/1992/013383A1 |
This is a method of increasing the efficiency of an electrical generator (10) of the type that generates real output power by a change of the reluctance of the magnetic flux path. The efficiency is improved by providing specific componen...
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WO/1992/012567A1 |
A rotary electric motor has a stator core (1) with salient poles (4, 3), some of them ferromagnetic and some of them permanent-magnetic, which are spaced-apart and which are all simultaneously magnetizable by means of a magnetizing windi...
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WO/1992/010870A1 |
Windingless rotor, variable reluctance, field excited, electromechanical machines composed of a family of windingless rotor machines consisting of both line-commutated, synchronous machines, and self-commutated (self-synchronous) machine...
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WO/1992/010022A1 |
A switched reluctance motor driven by a polyphase source includes a stator (3) having a yoke (6) and a plurality of evenly spaced salient poles (9, 10) distributed about the yoke (6) and a rotor (1) mounted for rotation relative to the s...
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WO/1992/009139A1 |
A reluctance type motor which can be driven at a high speed and generate a high output torque. The motor includes transistors (20a-20f) being respectively in connection with both the ends of exciting coils (39a-39c) for respective phases...
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WO/1992/007411A1 |
The invention concerns a synchronized stator-energized motor or generator with lamellar sectorial stator elements (SS1 and SS2) located one behind the other a certain longitudinal distance apart and each energized by an energizer winding...
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WO/1992/005627A1 |
A three-phase reluctance motor with a large output torque used to drive various pieces of industrial equipment, wherein two adjacent magnetic poles (16a and 16a') and two magnetic poles (16d and 16d') faced to the above magnetic poles in...
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WO/1992/000628A1 |
The machine comprises, per single-phase structure (A, B, C), two rows of air gaps (5-27, 6-28) having the same radius (Re) and assembled in angular sectors one of which surrounds the toroidal stator conductors (8). The sectors are arcs (...
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WO/1991/020119A1 |
An electric machine, preferably a rotary current generator for vehicles, has a liquid-cooled, pot-shaped metal housing (20) in which two rotary current systems are arranged one behind the other on the axis, and a drive shaft (13) accommo...
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WO/1991/019347A1 |
The process proposed concerns the manufacture of stators for electrical machines, preferably vehicle three-phase alternators using a surface-cooled stator. The stator has two stator-plate assemblies (28, 29) located one behind the other ...
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WO/1991/019346A1 |
Proposed is an electrical machine, preferably a vehicle three-phase alternator (10), with a surface-cooled stator (11) which has two assemblies (28, 29) of stator plates disposed longitudinally behind each other and with two stator coils...
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WO/1991/011050A1 |
The speed of a supercritically operated electric machine can be increased over a range between a first critical speed and a second critical speed. To this end, the shaft (11, 12) of the electric machine is elastically mounted on either s...
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WO/1991/011051A1 |
A magnetic circuit for generating the mechanical power and the electric power comprises a rotator (10) in a mechanic dynamic power generation device, an electric power generation device and a magnetic flux circulation induction device. T...
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WO/1991/010279A1 |
A permanent magnet hysteresis-motor (110) is provided herein including a stator core (111) with associated stator slots and teeth, a hysteresis cylindrical ring (112) separated from the stator core (111) by an annular air gap (113), and ...
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WO/1991/010278A1 |
To provide simple compensation in a synchronous machine for the effects of mechanical oscillations of the salient pole stator, the invention provides for control coils (8) generating a controllable transverse magnetic field (DELTAB). The...
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WO/1991/009445A1 |
In a liquid-cooled electric generator (10), especially an alternator for motor vehicles and the like, with a rotor (21a, 21b), a stator (14a, 14b) and a casing (12) holding both of them and forming the bearings for the rotor spindle (22)...
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WO/1991/008919A1 |
The power unit for a vehicle includes a thermal engine (1) and an electric motor (2). At low speed, the electric motor (2) has a driving torque higher than the thermal engine's (1) load moment. The electric motor (2) is designed to opera...
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WO/1991/008609A2 |
An alternator unit in an engine (45) in a vehicle (157) comprises two alternator assemblies (2, 4) each alternator assembly (2, 4) including a rotor winding (18, 20) and a plurality of stator windings (37, 38, 39, 40, 41). The alternator...
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WO/1991/007005A1 |
A multiple-stator synchronous induction motor which is started as an ordinary induction motor and then switched into synchronous operation when the rotational speed becomes close to the synchronous speed. The motor includes a plurality o...
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WO/1991/004602A1 |
A three-phase reluctance motor in which a rotor (1) is constituted to receive the magnetic attractive force in one direction at all times without cancelling the magnetic attractive force, in order to decrease mechanical vibration. Moreov...
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WO/1991/003836A1 |
Proposed is a rectifier for three-phase current generators in vehicles, in which the positive and negative diodes (13, 14), together with their housing, are inserted in two metal cooling plates (11, 12) mounted parallel to each other. Lo...
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WO/1991/003859A1 |
A homopolar, transverse pole rotor (14) having a central cylindrical body (24) with a set of circumferentially spaced, axially extending salient poles (28) at each end thereof, is constructed to reduce windage losses. Integral shrouds (2...
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WO/1991/003858A1 |
A three-phase single wave power supply reactance type motor having a construction wherein at least two motors are juxtaposed inside a casing (42), so that the number of magnetic poles (16a, ...) and the number of salient poles can be mad...
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WO/1991/003094A1 |
An arrangement for mounting a stator assembly (12) of a dynamoelectric machine (10) in a housing (16) employs a pluraltiy of circumferentially distributed mounting supports (56) on the interior of the housing (16) cooperating with pairs ...
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WO/1991/003096A1 |
The problem of effectively and quickly detecting fault conditions in an electromotive machine (10) is solved using a current transformer assembly (28) having a neutral lead (44). The neutral lead (44) comprises a single piece copper stra...
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WO/1990/013941A1 |
A reluctance-type electric motor of the invention is provided with a reverse current-preventing diode which prevents the released electric power of magnetic energy of a first exciting coil from refluxing into a DC power source. The objec...
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WO/1990/011641A1 |
A motor structure and energization scheme provides a high efficiency electronically commutated reluctance motor characterized by less iron loss than conventional switched reluctance motors operating without flux reversal in the stator. A...
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WO/1990/003685A1 |
Shapes of a rotor (10) and a stator (12), and periods and phases of currents of each of the phases are so determined that a variable reluctance motor will rotate as smoothly as an AC servo motor. When the number of phases is denoted by m...
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WO/1990/002437A1 |
An electric motor with solely one direction of rotation and electronic speed control, includes two mutually rotatable parts with ferromagnetic cores (1, 2) separated by an air gap (6). The state core (1) is provided with a peripherally e...
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WO/1990/001824A1 |
A spool-like stator support structure for an inductor type dynamoelectric machine incorporates stamped, annular end plates. Each end plate has a plurality of spaced-apart recessed landings along its outer edge and, preferably, a pluralit...
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WO/1990/001823A1 |
A high efficiency electronically commutated reluctance motor that is characterized by less iron losses than conventional switched reluctance motors. Preferably, the motor operates without flux reversal in the motor member which supports ...
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WO/1990/000324A1 |
An alternator and motor devices are disclosed of the type which are synchronous electrical generators and motors which do not require any brushes, slip rings, commutators, or permanent magnets. The excitation field coils (14, 114, 214, 3...
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WO/1989/011750A1 |
A work generating device (10; 33) comprises a movable working part (12; 35) which is driven by an electric motor (11) and which during a working cycle has a varying need of torque including at least one maximum value. The motor (11) is a...
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WO/1989/005540A1 |
A rotating electric machine comprises a rotor (1) and a stator (2) each having a ferromagnetic core (R, 4; 5) and being separated by a cylindrical air gap. The stator core (5) is provided with three peripheral rings of magnet poles (P1, ...
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WO/1989/005052A1 |
In a brushless synchronous generator having a three phase, WYE connected exciter armature (18) providing current which is rectified by a half-wave rectifier before energizing a field (26) of a main generator (24), a conductor is required...
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WO/1989/005053A1 |
According to certain designs of a rotor for a synchronous generator having a rotating rectifier assembly carried by the rotor, the rotating rectifier assembly is journaled below a bearing. Exciter leads coupling an exciter to the rotatin...
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WO/1989/004564A1 |
An undesirably long brushless generator including a permanent magnet generator (114, 116, 118), an exciter (64) and a main generator (22, 24, 42, 44) may have its axial length reduced by locating both the permanent magnet generator (114,...
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WO/1989/000358A1 |
An adjustable speed inductor type rotating dynamoelectric machine (2), capable of high speed operation, employs a stator assembly (4) incorporating a spool-like support structure (10). A central, generally cylindrical portion (12) of the...
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WO/1988/007782A1 |
A wind-powered magneto-electric generator of which magnetic rotors (36, 37) are on a common shaft (17) direct-driven from a wind-turbine (Figs, 8, 9 and 10) to generate in stators (18, 19) an electromotive force (EMF) which is controlled...
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WO/1988/006367A1 |
An alternating current generator (10) with a rotor (20) comprising claw-type poles is suggested, the magnetic noise of which is reduced as a result of the special design of the outer surfaces (43) of the claw-type poles (28, 29); neither...
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WO/1988/006377A1 |
A field coil is split into a plurality of sections which are connected in parallel with the battery for starting and are connected in series for generating the power after the engine is started. Thus a sufficiently large field magnetomot...
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WO/1988/006366A1 |
An armature core (55) and a field core (53) are fitted directly to a cylinder block (57) so that the armature core (55) and the field core (53) are cooled by a cooling liquid flowing through a cooling passage (58) inside this cylinder bl...
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WO/1988/004883A2 |
A generator system having self-build-up characteristics with an integral permanent magnet generator exciter (44). A rotor shaft (16') is journalled in a housing (12). A main stator (28') is secured within the housing, and a rotating fiel...
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WO/1988/004858A1 |
A compact rectifier assembly (10) for use in a synchronous electric machine having a rotor. A circumferential housing (14) surrounds a plurality of discrete diodes (36, 38) mounted within the housing. The housing is fabricated of non-con...
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WO/1988/004857A1 |
An oil-cooled generator (10) is provided having a housing (20) with a gas-filled interior and rotor (46, 56) therein. A stator (44, 58) associated with the rotor (46, 56) is secured to a surrounding sleeve (70', 70) by an interference fi...
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WO/1988/000409A2 |
Circuit as described, whereby a power circuit of the rotor is connected to a first and to a second collector ring, and each collector ring co-operates with brushes which are conductively connected to a power source, and an isolating and ...
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WO/1987/006402A1 |
An alternator (20) having a rotor (34) which extends obliquely with respect to its axis of rotation between at least a pair of pole pieces (23) having power windings (26) disposed therein with the turns of the windings (26) facing the pi...
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