Translok DH 440
| Translok DH 440 DB class 350, AL No. 31 |
|
|---|---|
.JPG) All-wheel drive DH 440 (cargolok) "DB 350 001"
|
|
| Number: | 3 |
| Manufacturer: | All-wheel maneuvering technology |
| Year of construction (s): | Mid 1990s |
| Axis formula : | Bo'Bo ' |
| Length over buffers: | 10,900 mm |
| Service mass: | 56 t |
| Wheel set mass : | 14 t |
| Top speed: | 50 km / h |
| Continuous output : | up to 400 kW |
| Driving wheel diameter: | 850 mm |
| Motor type: | Deutz diesel engine |
| Power transmission: | hydrostatic |
The DH 440 from Translok GmbH, also called cargo locomotive , is a shunting locomotive with hydrostatic power transmission and single wheel drive. The locomotive was developed in the 1990s by Allrad-Rangiertechnik GmbH and is now offered and serviced by Translok GmbH.
The four-axle locomotive has two bogies and can travel on radii of up to 35 m. The spacious driver's cab is off-center and is noticeable for its particularly large panes, which at the front and rear almost reach down to floor level. The locomotive is operated via a radio remote control that is also used when the driver is in the driver's cab.
In total, only three locomotives have been built to date. The reasons for this were teething troubles with the locomotives and the death of the managing director of Allrad-Rangiertechnik GmbH. The Translok GmbH took over the support and spare parts delivery and offers the model to this day.
A test locomotive was tested by the DB AG under the number 350 001-4 . The Augsburg Local Railway bought the second prototype in 1998 and gave it the road number 31 . The third locomotive with the number Em847 856-2 went to the works of Varo Energy AG in Birsfelden, Switzerland. A sale of 20 locomotives to the Danish State Railways and other locomotives to DB AG did not take place.
technology
The DH 440 has a hydrostatic drive, as it is mainly used in the construction machinery sector. The diesel engine drives a hydraulic pump and each wheel is individually driven by a hydraulic motor, i.e. H. there are no axles or wheelsets in the actual sense. This technology makes it possible to apply the full tractive power from the state and to drive at a very low continuous speed of only 1.5 km / h under full engine load. The pressure in the hydraulic system is up to 420 bar. The two outer (virtual) axles are hydraulically coupled, as are the two inner ones, which should prevent the wheels from skidding.
The drives can also be used for braking in order to protect the mechanical brakes.
To reduce costs, components from the automotive and construction machinery sectors were used as much as possible in the development of the locomotive. So are z. B. the mechanical brakes of the DH 400 drum brakes from truck construction.
literature
- Siegfried Baum: The Augsburg Local Railway. EK-Verlag, Freiburg 2000. ISBN 3-88255-444-4
