Components

Dispen dampers: Enhancing our passenger’s journey

© Alstom

Dispen dampers at a glance

  • Reduced rolling stock and infrastructure maintenance
  • Improved passenger comfort
  • Long-lasting and maintainable products including service offerings
  • Bogie primary and secondary as well as anti-yaw, anti-roll and intercar dampers

Alstom's Dispen™ dampers portfolio includes linear, friction and bi-mode dampers for all kinds of rolling stock, from locomotives, light rail, metro, commuter and regional trains up to high-speed trains. They offer operators an innovative and effective way of controlling train dynamics, leading to cost reductions and more comfortable travel conditions.

Expertise
Reduced wear
Comfort
Damper .JPG
Production of dispen damper

Designed by experts

The priorities of Alstom’s team of experts in charge of designing Dispen dampers in Le Creusot, France, are improved damping force, leading to safe and more comfortable rides, and reduced wear on the mechanical parts connected to the dampers. Overall, Alstom offers an extended lifetime based on a solid return of experience and strong design reliability. This provides outstanding results in terms of maintenance intervals (up to 2.5 million kilometres before first maintenance for linear dampers and up to 4 million kilometres for friction dampers and bi-mode dampers). Durability is one of the main criteria driving the design development of Alstom’s Dispen dampers.

Damper .JPG

Optimised total cost of ownership

Dispen dampers reduce wheel-rail contact friction, which in turn lowers the amount and frequency of maintenance operations related to wheel, axle and track wear. This optimisation also contributes to energy savings when travelling around bends. Operators can benefit from Alstom's best-in-class services for their dampers or order replacement part kits to maintain them at their chosen time, thereby guaranteeing optimum flexibility.

View of bogie and dispen damper

World leading innovation

Invisible to the passenger, the bi-mode Dispen damper won an Innovation Award at the SIFER trade exhibition in Lille in 2015. This innovative product reduces the lateral acceleration of trains in curves, improving the comfort ride index by up to 20% while minimising track and wheel wear. This bi-mode damper is a 100% mechanical plug & play product which offers high reliability. As a strongly passenger comfort-oriented organisation, Alstom is also working on controlled dampers for higher dynamic stability and improved comfort.

  • Production of dispen damper
  • Damper .JPG
  • View of bogie and dispen damper

  • Designed by experts

    The priorities of Alstom’s team of experts in charge of designing Dispen dampers in Le Creusot, France, are improved damping force, leading to safe and more comfortable rides, and reduced wear on the mechanical parts connected to the dampers. Overall, Alstom offers an extended lifetime based on a solid return of experience and strong design reliability. This provides outstanding results in terms of maintenance intervals (up to 2.5 million kilometres before first maintenance for linear dampers and up to 4 million kilometres for friction dampers and bi-mode dampers). Durability is one of the main criteria driving the design development of Alstom’s Dispen dampers.

  • Optimised total cost of ownership

    Dispen dampers reduce wheel-rail contact friction, which in turn lowers the amount and frequency of maintenance operations related to wheel, axle and track wear. This optimisation also contributes to energy savings when travelling around bends. Operators can benefit from Alstom's best-in-class services for their dampers or order replacement part kits to maintain them at their chosen time, thereby guaranteeing optimum flexibility.

  • World leading innovation

    Invisible to the passenger, the bi-mode Dispen damper won an Innovation Award at the SIFER trade exhibition in Lille in 2015. This innovative product reduces the lateral acceleration of trains in curves, improving the comfort ride index by up to 20% while minimising track and wheel wear. This bi-mode damper is a 100% mechanical plug & play product which offers high reliability. As a strongly passenger comfort-oriented organisation, Alstom is also working on controlled dampers for higher dynamic stability and improved comfort.

Dispen™ dampers key figures

50%
cost saving through maintenance (up to)
20%
reduction of wheel and rail wear with the bi-mode damper (up to)
60k
units per year through 2 sites (France and China) of production capacity

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