CONSTRUCTION
Instead of the round-shaped conductor wires used in a conventional starter assembly, the planetary reduction-segment conductor motor type starter assembly uses square-shaped conductors. In this type of construction, square shaped conductors can achieve the same magnetic field strength as would be achieved by winding numerous round-shaped conductor wires, but without increasing the mass. As a result, the output torque is increased, and the armature coil is more compact.
Because the surface of the square-shaped conductors that are used in the armature coil functions as a commutator, the overall length of the planetary reduction-segment conductor motor type starter assembly is shortened.
| *A | Conventional Type Starter Assembly | *B | Planetary Reduction-segment Conductor Motor Type Starter Assembly |
| *1 | Round-shaped Conductor Wire | *2 | Starter Armature Assembly |
| *3 | Brush | *4 | Commutator |
| *5 | Surface Commutator | *6 | Square-shaped Conductor |
| *a | Reduced Length | - | - |