BD® series 4000
| BDŽ series 45 (until 1936: series 4000) |
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 Dimensional sketch
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| Numbering: | BDŽ 45.01 - 45.10 (until 1936: 4001 - 4010) |
| Number: | 10 |
| Manufacturer: | Hanomag |
| Year of construction (s): | 1922 |
| Retirement: | until 1974 |
| Axis formula : | F n2vGt (delivery) F h2Gt (after 1948) |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 14,400 mm |
| Height: | 4,050 mm |
| Fixed wheelbase: | 4,335 mm |
| Total wheelbase: | 7,225 mm |
| Smallest bef. Radius: | 180 m |
| Empty mass: | 76.5 t (delivery) 76 t (after 1948) |
| Service mass: | 101 t |
| Friction mass: | 101 t |
| Wheel set mass : | 16.9 t |
| Top speed: | 45 km / h |
| Starting tractive effort: | 153 kN (delivery) 226 kN (after 1948) |
| Driving wheel diameter: | 1,340 mm |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| Cylinder diameter: | 900/620 mm (delivery) 620 mm (after 1948) |
| Piston stroke: | 700 mm |
| Boiler overpressure: | 15 bar |
| Grate area: | 4.6 m² |
| Superheater area : | 75.0 m² (after 1948) |
| Evaporation heating surface: | 248.41 m² (delivery) 181.11 m² (after 1948) |
| Water supply: | 12 m³ |
| Fuel supply: | 5 t |
| Brake: | Westinghouse air brake handbrake |
The vehicles of the BDŽ series 4000 (from 1936 as BDŽ series 45 classified) were freight train - tank locomotives of the Bulgarian State Railways Bălgarski Dăržavni železnici (BDŽ) with the wheel arrangement F. The BDŽ procured in a series in 1922 a total of ten locomotives of this series. They were the first Bulgarian steam locomotives with a friction load of over 100 tons.
history
After the first steam locomotive with six driven axles appeared in 1911 with the kkStB 100 and in 1917 the first freight locomotives of the later DR class 59 demonstrated their serviceability with the Württembergische K , five years later the Bulgarian state railways procured BDŽ for the heavy coal trains from the most important Bulgarian coal field near Pernik to Sofia and locomotives with six driven axles for steep ramp services. The BDŽ procured ten of these locomotives with six driven axles and the F wheel arrangement from Hanomag in 1922 as two-cylinder compound machines . They were non-running wet steam locomotives in a two-cylinder composite design and were originally called the Series 4000 . The low-pressure cylinders of the locomotives had a diameter of 900 mm, they were the largest steam locomotive cylinders in the BDŽ.
The drive and running gear of the locomotive was designed according to the Gölsdorf system with side-shifting coupled axles. The fourth axle of the locomotive was chosen as the drive axle, which required a very long drive rod . The driving axle was designed without a flange . The last locomotive delivered, which originally had the number 4010 (from 1936 referred to as 45.10 ), was the locomotive with the factory number 10000 from Hanomag. It had special anniversary signs that were attached to both sides of the steam dome .
Increasing transport services required additional locomotives for the Pernik coalfield. The series 46 was then created with additional running axles and also six driven axles. Until 1931, the 45 class locomotives were only used on the railway line from Sofia to Pernik. After that, they ceded their positions to row 46 and only performed reserve duties or work in heavy shunting.
In 1948, after about 25 years of use, all locomotives were converted to twin engines with simple steam expansion. A Lentz valve control was selected as the control system . The locomotives were still in use in this form until the early 1970s.
The 45.06 was not operative in 2004 and 2014 still exist, in Asenowo out what may indicate the use of the locomotive as a strategic reserve.
See also
literature
- Dimiter Dejanow: The six-dome-axle steam locomotives of the Bulgarian State Railways , in: Der Modelleisenbahner 12/1976, page 373.
- Alfons Stettner: Standard locomotives for the BDŽ , in: Eisenbahn-Kurier 3/2016, EK-Verlag, Freiburg ISSN 0170-5288 .
Web links
- Statistics of Bulgarian steam locomotives on pospichal
- Designation of locomotive 45.06 as a strategic reserve in Bulgaria
- http://www.vonscheven.net/ZugHanomag.asp
Individual evidence
- ↑ a b Dimiter Dejanow: The six-domed steam locomotives of the Bulgarian State Railways , in: Der Modelleisenbahner 12/1976 , page 373
- ↑ Statistics on Bulgarian steam locomotives on Pospichal, status 2004
- ↑ Naming of locomotive 45.06 as a strategic reserve in Asenowo, listed on Turntable-online, as of June 2014