G424 Service Manual Starting System38
When the internal gear is fixed as in the case of the starter
motor, the carrier rotates in the same direction as the sun
gear.
This may be used to determine the reduction ratio easily.
Namely, the carrier reduction ratio = (43 + 11) / 11
.
=
.
4.9
Permanent magnet pole
Conventionally, the field coil wound around the pole is
energized to generate magnetic fluxes. This system uses a
permanent magnet (ferrite magnet) for the pole, eliminating
the field coil and reducing the size and weight.
The auxiliary pole helps generation of magnetic fluxes to
ensure stable rotation and output characteristics.
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