Tapped Or Sectionalized Patents (Class 322/93)
  • Patent number: 8089252
    Abstract: An armature winding switch module has a first connection set, a second connection set and a third connection set. The first, the second and the third connection set are respectively connected between a neutral point and a corresponding phase line point and have terminals and contacts. Each two terminals of each connection set are respectively connected to two ends of a corresponding armature winding of a power supply device. The contacts of each connection set are connected among the corresponding terminals. Selectively turning on/off the contacts can connect the armature windings of each connection set in series or in parallel and thereby output required voltage without redoing wiring work. Therefore the present invention avoids second time complicated wiring work and possible connection faults.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: January 3, 2012
    Assignee: Kutai Electronics Industry Co., Ltd.
    Inventor: Wen-Feng Lu
  • Publication number: 20100225112
    Abstract: According to the present invention, there is provided a power generator that can generate power having a predetermined voltage and a predetermined current even though external energy is slight or excessively strong when generating power based on water power or wind power, the power generator comprising: a magnet rotor that rotates upon receiving rotating force from a driving source; and a stator coil arranged to face magnetic poles of the magnet rotor, the magnet rotor including: a rotary shaft rotatably and axially supported by a housing; and permanent magnets that form a plurality of magnetic poles on a concentric circle with the rotary shaft at the center. The stator coil includes: a plurality of coreless winding wires arranged to face the magnetic poles formed in the rotor; and a three-phase output terminal.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 9, 2010
    Inventor: Yukihiko Hayakawa
  • Publication number: 20100181851
    Abstract: Provided is a magnetic electricity generator having a coil structure capable of selectively changing output characteristics by using the same armature coil structure. In the magnetic electricity generator having armature coils and a magnet, the armature coils are configured with plural circuits of three-phase armature coils, wherein coil groups of each phase coil of the three-phase armature coils are divided into two or more coil groups, connection ports (T1 to T7, T9, T11, T13 to 22, T24, T26, and T28 to T30) are disposed to each coil group, and intermediate connection ports (T8, T10, T12, T23, T25, and T27) are disposed to one coil group in each phase coil, and wherein the connection ports and the intermediate connection ports are selectively connected with wires between the phase coils according to desired output voltage and current, so that output voltage characteristics can be adjusted according to connection scheme.
    Type: Application
    Filed: October 19, 2009
    Publication date: July 22, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Yasuhiro Shinkawa
  • Patent number: 6995546
    Abstract: An alternating current generator of the invention has three armature windings, which are wound from a winding start end connected to a neutral point to winding finish ends, and a stator that is connected to the neutral point in Y-connection at a phase difference of 120 degrees, respectively, and configures a three-phase power source, wherein the generator comprises two taps provided at predetermined positions from the winding start end to the winding finish ends of two armature windings out of the three armature windings, and wherein one terminals of the two armature windings are connected to relevant ones of the two taps and the other terminals of the two armature windings are made single-phase output terminals.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: February 7, 2006
    Assignee: Shindaiwa Kogyo Co., Ltd.
    Inventor: Takayuki Fujikawa
  • Patent number: 6049198
    Abstract: The voltage supply device for the motor vehicle electrical system includes e.g. a self- or separately-excited generator having stator windings (10,11,12) and an excitation coil (E); a main bridge rectifier device connected to the stator windings having a first connector (B+) at which a first voltage (UB+) is delivered; an exciter bridge rectifier device connected to the stator windings; an exciter voltage regulator device connected between the exciter bridge rectifier device and the excitation coil (E) for regulation of an excitation current passing through the excitation coil; an additional rectifier device connected to the stator windings (10,11,12) having a second connector (B2+) at which a second voltage (UB2+) is tapped and a device for regulating a load current delivered by the generator to the first connector (B+) or the second connector (B2+) that includes a thyristor (Th0,Th4) connected to the first or second connector and a triggering device (A) whereby the generator has an optimal power output.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: April 11, 2000
    Assignee: Robert Bosch GmbH
    Inventor: Joachim Schenk
  • Patent number: 5559704
    Abstract: A method for determining gross engine horsepower of an internal combustion engine coupled in driving relationship to an alternating current electric alternator, the alternator supplying electric power to variable loads, comprises measuring the field current and average per phase armature current supplied by the alternator; computing the magnitude of electric power supplied by the alternator from the measured values of field current and armature phase current; determining the engine efficiency at the computed magnitude of electric power; and converting the computed electric power to engine horsepower at the determined efficiency.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: September 24, 1996
    Assignee: General Electric Company
    Inventors: Laurence D. Vanek, Myron L. Smith, Ojekunle Aboyade
  • Patent number: 5066866
    Abstract: An electrical apparatus for use with a motor vehicle electrical system, which includes an engine-driven alternator, provides a switching circuit for switching the system between a normal-power state and a high-power state. In the normal-power state, the apparatus provides the nominal electrical power needed by the vehicle electrical system and battery. In the high-power state, the apparatus causes the engine-driven alternator to produce a higher voltage and a higher power output for external loads, while still providing the nominal electrical power for the vehicle electrical system and the vehicle battery. In the normal-power mode of operation, the vehicle voltage regulator sees the full voltage generated by the vehicle alternator. In the high-power mode of operation, the vehicle voltage regulator sees only a reduced portion of the full voltage generated by the vehicle alternator.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: November 19, 1991
    Inventor: William M. Hallidy
  • Patent number: 4906060
    Abstract: Method and apparatus for controlling the output frequency of an alternator by maintaining a relatively constant speed of rotation of the alternator rotor are disclosed. The rotor includes an annular stator and a rotor rotatably mounted within. In one embodiment the stator winding is comprised of a plurality of discrete polyphase windings positioned within discrete annular segments of the stator. When the actual rotor speed is below the desired speed, selected stator units are de-energized to decrease the strength of the stator magnetic field, thereby permitting the rotor speed to increase. When the actual rotor speed is greater than the desired speed, selected stator units are energized to increase the strength of the stator magnetic field, thereby exerting a braking force on the rotor to slow it down. In another embodiment each phase of the polyphase stator winding includes a plurality of inductor coils.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: March 6, 1990
    Assignee: Twind Energy Corporation
    Inventor: David L. Claude
  • Patent number: 4642547
    Abstract: A load regulator for a linear alternator driven by a free piston Stirling engine. A substantially constant output voltage is maintained across the useful load by shunting a portion of the armature output current of the alternator through a variable energy absorbing conductance and varying that conductance in proportion to changes in the output voltage of the alternator in order to maintain a constant total armature power output. The regulator may be made more efficient by forming the armature coil as a plurality of series connected coils by one or more taps and then switching the number of series coil turns in connection to the load approximately in inverse proportion to the square root of the steady state power demand of the load so that the total armature output power is switched between discrete levels while the output voltage is maintained constant for all those levels by the variable impedance.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: February 10, 1987
    Assignee: Sunpower, Inc.
    Inventor: Robert W. Redlich
  • Patent number: 4395669
    Abstract: The invention provides an electrical machine having an inductor and an armature at least one of which has at least two independent winding assemblies. The switching into and out of circuit of each winding assembly is controlled by a processor which receives monitoring parameters of the machine and desired value parameters, thereby controlling in real time the operating characteristics of the machine. The machine may be a wind-driven generator.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: July 26, 1983
    Assignee: Association Gradient
    Inventors: Michel Berna, Michel Kant, Jean P. Vilain, Rene Seger
  • Patent number: 4314194
    Abstract: Auxiliary windings wound in close juxtaposition to the respective phase windings of a three-phase alternator are connected in series with the star-connected phase windings at one end and at the other end to the diodes of a separate rectifier bridge for the current supplied to the exciter winding of the alternator. This makes possible operation of the exciter winding at higher voltage and lower current than in the case where the excitation voltage is generated only by the main phase windings of the alternator. Since the excitation windings carry only the exciter current, they may be made of finer wire than the main phase windings, but they should be wound close to the main phase windings so as to be cut in the same way by the lines of force of the rotating field.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: February 2, 1982
    Assignee: Robert Bosch GmbH
    Inventor: Joachim Severing
  • Patent number: 4268788
    Abstract: In an a.c. generating means exciting method, the exciting windings are wound on the stationary core on which the armature winding has been wound, in such a manner that the exciting windings are delta-connected to one another with the two ends open, and the zero phase current obtained from the two open ends of the delta-connected exciting windings and the phase current obtained from the exciting windings are combined and subjected to rectification to provide a direct current which is utilized to excite the field winding, whereby the field control is carried out in response to the increasing load current and the transient characteristic of the a.c. generating means is improved.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: May 19, 1981
    Assignee: Denyo Kabushiki Kaisha
    Inventors: Masanobu Takeda, Shigeaki Anzai
  • Patent number: 4153869
    Abstract: A three-phase alternator has tapped armature windings, the tap points being connected to provide 12 V output and to a main battery. The end terminals of the armature windings are connected to an auxiliary rectifier, the output of which is connected to an auxiliary battery which is serially connected to the main battery, so that the two batteries are serially connected like the serial connection of the armature winding portions. A single voltage regulator, which may be connected to the auxiliary rectifier, or can be separately supplied by separately rectified current controls current flow through the field. The voltage regulator can be connected to the end terminals of the armature windings so that the field will be energized at the higher voltage level corresponding to the series voltages of both batteries, and permitting use of the auxiliary rectifier also as a field rectifier.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: May 8, 1979
    Assignee: Robert Bosch GmbH
    Inventor: Istvan Ragaly