What is the working principle of the induction generator

As shown in Figure 1, induction starter rotating disk is composed of two round Plexiglas stacked together, there are gaps, each piece of outward surface are affixed with aluminum, aluminum to the center of the center of the symmetrical distribution. As the two discs were fixed with two driven wheels, and rely on the belt connected to the drive wheel, because one of the two belts have a cross in the middle, so turn the drive wheel when the two discs turn to the opposite. As shown in the figure, the disk steering: front clockwise, counterclockwise. Each of the two discs have a fixed brush over the center of the circle, the two brushes at an angle of 90 degrees, the brush ends of the copper wire and aluminum in close contact, so that when the disc rotation of the copper wire and aluminum can be friction electricity. In the position shown in Figure 2 there is a suspended brush E, suspended brush and brush at an angle of 45 °, each brush across the two feet of the two discs, but not in contact with the two discs, the feet are equipped with a number of thin copper wire, copper wire tip pointing to the aluminum disc. The overhanging brushes are connected to the Leyden bottle by a metal rod.

The Leyton bottle is actually a capacitor to store electricity. The Leyton bottle structure, shown in Figure 3, consists of two layers of cylindrical tin foil with a dielectric in the center and a cap on top. A metal rod on the suspension brush is inserted halfway into the cap, and the end is connected by a thicker copper wire to the bottom of the inner tin foil cylinder of the Leyden jar, so that the charge collected on the suspension brush can be stored in the Leyden jar. Figure 3 shows the discharge ball is also connected to the lid of the bottle through a metal rod and Leiden, this rod is inserted into the lid half and not touch the collector fork, but also not connected to the Leiden bottle in the tin foil tube, but this can be subject to the Leiden bottle tube charge induction and charged, it can be deduced that the discharge ball will be induced and connected to the Leiden bottle tube with the same electrical charge. As the induction starter in the left and right each have a Leyton bottle, if the two Leyton bottle gathered different kinds of charge, the two discharge ball will be induced on the different kinds of charge, when the two balls close to the electric spark will be generated by the discharge. It should be noted that the Leiden bottle is only a storage device, with the ball whether the discharge has nothing to do, because even if it is removed, turn the disk when the two small ball discharge as usual, but the electric spark is very weak, but its frequency is higher. This is because there is no Layton bottle after the capacitance is reduced, can be explained by the formula U = Q / C: to produce sparks, the voltage between the two balls is about tens of thousands of volts, when C is reduced, the suspended brush only need to gather a small amount of charge can make the voltage rise to the discharge requirements, it is compared with the original, the frequency of discharge will be increased. But because of the small ball on each discharge of electricity released by the reduction of the corresponding current will also be reduced, and thus the spark is very small.

Two, the induction starter motor forward, reverse state of the working principle

When the clockwise shaking of the crank on the rotor, separated from the two small balls between the sparks will be generated, and will hear the crackle of the discharge sound. This is the induction starter discharge phenomenon. How does such a phenomenon occur? Here we will introduce its principle.

Because in the electrostatic sequence in the aluminum row in the copper before, so in the disc rotation of aluminum and brush on the copper wire friction with a positive charge, the copper wire with a negative charge. As shown in the figure: assuming that just friction when the metal aluminum S1 charged amount of Q1, and with the same diameter of the aluminum S2 charged amount of Q2, Q1 and Q2 have the size of the difference. As shown in the figure:

(1) Turned 90° (2) Turned 45° (3) Turned 45°

(4) Turned 45° (5) Turned 45° (6) Turned 45°

(7)

When the disc is turned 90°, S1 is opposite to the reverse brush Bˊ, and at this time, S2ˊ, S1ˊ are opposite to S1, S2 respectively. Assuming that Q1>Q2, since there is a brush connection between S1ˊ and S2ˊ, it will cause free electrons to move, making S1ˊ positively charged and S2ˊ negatively charged.

When the disk is turned through another 45°, S1 and S2 are turned clockwise to the suspended brushes E2 and E1 connected to the electrodes and discharged there to make E1 and E2 positively charged, and these positive charges are accumulated in the Leyden jar C1 and C2.

When the disk is turned through 45 ° that is, S1 turned to the front brush B corresponds to, S1 and S1 ˊ relative, S2 and S2 ˊ relative, just after the discharge of S1 and S2 just no longer with a charge. S2 ˊ negatively charged so that the S2 induction positively charged, but also because of the friction of the brush with the metal on the copper wire to make it positively charged, in the role of the two **** with the positive charge on the S2; S1 for S1 S1ˊs positive charge makes it inductively negatively charged, due to the connection of the metal brush, the positive charge carried by S2 will lead to the movement of electrons (Figure 4) to make S1 negatively charged, so that although there is a friction generated by the positive charge will be offset by the negative charge generated by the above two roles, and therefore S1 is still negatively charged.