Electric generator for vehicles

Prime-mover dynamo plants – Starting and generating dynamo

Patent

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Details

290 31, F02N 1104

Patent

active

047541547

ABSTRACT:
An electric generator for vehicles is disclosed including an armature having starting coils, generating coils and a starting current supply path assembly for supplying electrical current from a power supply to the starting coils. The electric generator also includes a field element having a set of field magnets for providing a magnetic field which interacts with the magnetic field of the starting coils during a start-up sequence of the engine of the vehicle. The field magnets also generate a magnetic field after the start-up sequence has been completed to induce an electrical current in the generating coils during operation of the engine so as to provide electrical energy for the engine. The starting coils are arranged concentrically inside the set of field magnets and the generating coils are arranged concentrically inside the starting coils. A magnet is also provided which causes the starting current supply path assembly and brushes made of conductive material to come into contact with each other during the start-up sequence so as to provide an electrical connection between the starting coils and the power source. After the start-up sequence is completed, the magnet which causes the connection between the starting current supply path assembly and the brushes is de-energized so as to break the connection. The rotor continues to rotate due to the operation of the engine.

REFERENCES:
patent: 3577002 (1971-05-01), Hall et al.
patent: 3590262 (1971-06-01), Sheffield et al.
patent: 3879624 (1975-04-01), Jones
patent: 4219739 (1980-08-01), Greenwell

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