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| PS Starter |
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The PS* starter, developed by DENSO in 2001, is 22 percent lighter and 14 percent shorter than the RA starter-- resulting in improved fuel consumption and excellent mountability in the vehicle. A smaller and lighter starter is the result of many "world's first" technologies, such as improving the yoke, employing a segment conductor (rectangular conductor) in the armature coil and improving the armature commutator shape.
* PS: Planetary Reduction Segment Conductor Motor
Benefits and Features
- Small size, light weight, easy mountability and low cranking noise.
- Placing a magnet between the yoke main poles increases the total magnetic flux.
- Rectangular conductor adopted for the armature coil improves the winding density (space factor).
- Newly developed surface commutator, placed on the end surface of the armature, reduces the total length of the armature.
- The deceleration ratio was increased from 4.4 to 7.9, resulting in further reduced size of the motor.
- Shock absorber is used to absorb the shock of the deceleration device* caused by the increased deceleration ratio.
* The deceleration device decelerates the armature rotational force that rotates the engine’s pinion gear. The PS starter uses the planetary gear as the deceleration device. |
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