Tandem type rotary generator generating two voltages

A tandem type rotary generator comprising:

• a rotary shaft possible to be rotated on an axis thereof;
• two power generating sections disposed adjacent to each other along an axial direction of the rotary shaft, each of the power generating sections having a Lundell type rotor core fixed to the rotary shaft, a field coil wound on a boss portion of the Lundell type rotor core so as to be possible to generate a magnetic field in the Lundell type rotor core, a stator core disposed on an outside of the Lundell type rotor core opposite to the rotary shaft in a radial direction of the rotary shaft, and a stator coil wound on the stator core so as to be possible to generate electric power based on the magnetic field, a direction of a magnetic flux in the boss portion of one Lundell type rotor core being the same as that in the boss portion of the other Lundell type rotor core;
• and
• a spacer, made of magnetic material, disposed between the power generating sections, and attached to the power generating sections such that heat generated in one of the power generating sections is transmitted to the other power generating section through the spacer.

A tandem type rotary generator comprising:

• a rotary shaft possible to be rotated on an axis thereof;
• two power generating sections disposed adjacent to each other along an axial direction of the rotary shaft, each of the power generating sections having a Lundell type rotor core fixed to the rotary shaft, a field coil wound on the Lundell type rotor core so as to be possible to generate a magnetic field in the Lundell type rotor core, a stator core disposed on an outside of the Lundell type rotor core opposite to the rotary shaft in a radial direction of the rotary shaft, and a stator coil wound on the stator core so as to be possible to generate electric power based on the magnetic field;
• and
• a torque transmitter which is adapted to transmit torques required in the power generating sections to the rotary shaft,
• wherein the torques required in the power generating sections differ from each other, and the torque transmitter is disposed on a side of the power generating section requiring a larger torque opposite to the other power generating section requiring a smaller torque in the axial direction.

A tandem type rotary generator comprising:

• a rotary shaft possible to be rotated on an axis thereof;
• two power generating sections disposed adjacent to each other along an axial direction of the rotary shaft, each of the power generating sections having a Lundell type rotor core fixed to the rotary shaft, a field coil wound on the Lundell type rotor core so as to be possible to generate a magnetic field in the Lundell type rotor core, a stator core disposed on an outside of the Lundell type rotor core opposite to the rotary shaft in a radial direction of the rotary shaft, and a stator coil wound on the stator core so as to be possible to generate electric power based on the magnetic field;
• and
• a current controller which is adapted to control currents outputted from the stator coils,
• wherein degrees of electric power generated in the power generating sections differ from each other, the current controller is disposed on a side of the power generating section generating a lower degree of electric power opposite to the power generating section generating a higher degree of electric power in the axial direction.

A tandem type rotary generator comprising:

• a rotary shaft possible to be rotated on an axis thereof;
• two power generating sections disposed adjacent to each other along an axial direction of the rotary shaft, each of the power generating sections having a Lundell type rotor core fixed to the rotary shaft, a field coil wound on the Lundell type rotor core so as to be possible to generate a magnetic field in the Lundell type rotor core, a stator core disposed on an outside of the Lundell type rotor core opposite to the rotary shaft in a radial direction of the rotary shaft, and a stator coil wound on the stator core so as to be possible to generate electric power based on the magnetic field;
• and
• a rectifier which is adapted to rectify alternating currents of the electric power generated in the stator coils and to output a first voltage and a second voltage based on the rectified currents,
• wherein the rectifier generates the first voltage from voltages of the rectified currents such that the first voltage is higher than the voltages of the rectified currents.