Locomotives used in shunting operations require 1) power acceleration with smooth stepless development of tractive effort, 2) steady change of load and speed, 3) rapid reversing, 4) uniformly high braking effort without wearing parts, 5) easy control and operation, and 6) simple and rugged design to ensure trouble-free running. AEG (Allegemeine Electricitaers Gesellschaft) has developed the Ser 311-Fottinger transmission. Characteristics include: power up to 280 HP; compact design; high turbine moment is obtained when starting; the torque converter gives smooth acceleration, adjusting automatically to the load; friction-disc reversing clutches are made of non-wearing sinter-bronze and steel; and most importantly, it can be reversed while the locomotive is still moving. In fact, it is possible to reverse at speeds of up to half maximum. The Sar 320 has also been developed by AEG for use on multiple-unit stock for medium and long distance services, consisting of up to 6 or 8 cars. It uses force locking reverse clutches. The arrangement is advantageous on extensive railway systems with long intervals between stations. It permits the use of very simple transmissions with a minimum of control equipment.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Publication Date: 1969-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00072988
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Files: TRIS
  • Created Date: Jan 29 1976 12:00AM