Dellner D-BOX Saving lives – time and money

Dellner has extensive experience from designing and manufac- turing train connection products and deliver safety solutions to all of the world's largest train manufacturers. D-BOX, our energy absorption management system, helps operators handle the minor impacts of everyday rail operations around the globe, and is also designed to cope with the major impact of serious collisions. D-BOX works throughout the entire train and consists of various components in the coupler center section, in the train front end and between cars.

When time seems to stand still

In a collision, even a fairly slow-moving train packs quite a punch. And the interface between cars is critical – especially when they are more than two. D-BOX's unique design counters twisting and climbing to keep your train on track and your passengers safe. The blow is softened by dissipating huge kinetic forces in a matter of milliseconds, to prevent major deformation of passenger cars or wagons. For shocked passengers, time may stand still, but during that split second of impact, every millisecond counts.

Maximum availability of your train fleet

As for the minor impacts of everyday rail operations, D-BOX cushions operators' bottom lines too – keeping rolling stock rolling and timetables on time. Welcome to contact any of the Dellner offices on the back of this brochure, to discuss what D-BOX can offer you in terms of less downtime, a smoother ride and improved passenger safety.

Effective energy absorption management

At Dellner we have taken a system systems approach to energy absorption management. Good energy absorption management is to keep forces and deceleration to a minimum, something that is not always easy. If movement is allowed to occur, then energy must be absorbed. Conversely, if energy is to be absorbed then movement must be allowed and high energy will be absorbed if the efficiency of the absorbing device is high.

Three criteria for good energy management of train operation:

• The effect of a collision on a train is dependent upon the behavior of the energy absorbers built into the couplers • Whatever the impact conditions, the couplers should not bottom out, otherwise high deceleration will occur • Energy should be absorbed along the train and impact forces generated at vehicle interfaces must be controlled, as these represent deceleration/acceleration at these positions.

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