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The starter is an electric motor of a direct current with the mixed excitation and the electromagnetic traction relay. The starter consists from статора (cases) with windings of excitation (coils), anchors with обгонной муфтой, covers with щеткодержателями and the traction relay.
At starter inclusion through a winding of the traction relay of a starter the current from the storage battery starts to proceed, the relay anchor is involved also relay contacts become isolated. Simultaneously the relay anchor through the lever moves обгонную муфту with a gear wheel. The nave обгонной муфты turns on screw шлицах a starter shaft together with a gear wheel that facilitates its input in gearing with a gear wreath of a flywheel. Through the closed contacts of the traction relay there is a current feeding windings статора both anchors, and the starter anchor starts to rotate together with a nave and обгонной муфтой.
After the engine starts to work, frequency of rotation of a gear wheel exceeds frequency of rotation of an anchor of a starter, обгонная муфта the twisting moment is freely turned also not transferred from a flywheel to a starter shaft. After release the ignition key the feed circuit of a winding of the traction relay is disconnected, the anchor of the traction relay is wrung out by a spring in a starting position, relay contacts are disconnected also a drive gear wheel leaves gearing with a gear wreath of a flywheel. |