Theory of operation
- Make
- Fiat
- Model
- Punto (176) Factory Service Manual
- Year
- 1993–1999
- Section
- Automatic transmission (Selecta) › Theory of operation
THEORY OF OPERATION
When metallic powder is moved towards a magnet, the particles of metal unite to form a chain. This extended magnetised chain can be used to transmit a force. The electromagnetic clutch uses this transmission principle.
Between the internal surface of the driver and the external surface of the driven plate there is a small gap, filled with magnetic powder. When an electromagnetic force is applied to this powder, the driver attracts the plate and they connect.
The electromagnetic force is generated by passing an electric current through the coil located in the driver, causing it to become an electromagnet.
The magnetic powder made into a solid chain allows the transmission of power from the driver to the driven plate.
The transmitted torque is proportional to the current. When the current is decreased the torque also reduces.
- Magnetic field line
- Coil
- Electromagnetic powder
- Driver
- Driven plate
- Electric current
- Antivibration elements
- Slip-ring
- Transmission input shaft
Parts & tools for this job For 1993 Fiat Punto
- PARTTransmission filter kitSearch: Fiat Punto 1993 transmission filter kit
- FLUIDAutomatic transmission fluidSearch: Fiat automatic transmission fluid
- TOOLFluid transfer pumpSearch: fluid transfer pump
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