DIESEL LOCOMOTIVE ELECTRIC TRANSMISSION Russian patent published in 2008 - IPC B61C9/00 B61C15/08 

FIELD: railway transport; electric transmission of locomotives.

SUBSTANCE: proposed electric transmission consists of traction generator receiving mechanical energy from diesel engine and containing independent field winding and armature, field winding which is connected to independent field winding and provides forming of external characteristic of traction generator, traction motors directly connected with armature of traction generator. Wheelsets are mechanically coupled with traction motors. Diesel locomotive electric transmission contains switching gear which, by control signal formed in locomotive adhesion limit zone and at break of wheelset-to-rail adhesion, provides disconnection of direct electric connection of traction motors and armature of traction generator and connection of wheelsets to armature in series with traction motors through sliding contacts. Circuit is thus formed to pass generator current along wheelsets and rails which makes it possible to act by current onto zones of contact of driving wheelsets and rails.

EFFECT: increased wheel-rail adhesion coefficient and traction force of diesel locomotive.

4 dwg