BDŽ series 04
| BDŽ series 04 | |
|---|---|
| Numbering: | BDŽ: 04 01-50 |
| Number: | 50 |
| Manufacturer: | Simmering-Graz-Pauker |
| Year of construction (s): | 1963-1965 |
| Retirement: | after 2010 |
| Axis formula : | B'B ' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 18,240 mm |
| Height: | 4,130 mm |
| Bogie axle base: | 2,700 mm |
| Total wheelbase: | 13,700 mm |
| Service mass: | 80 t |
| Friction mass: | 80 t |
| Wheel set mass : | 20 t |
| Top speed: | 110 km / h |
| Installed capacity: | 2 × 809 kW (2 × 1,100 PS) |
| Starting tractive effort: | 240 kN |
| Wheel diameter: | 1,000 mm |
| Motor type: | SGP T 12b |
| Motor type: | 2 × twelve-cylinder four-stroke diesel engines |
| Rated speed: | 1,290 rpm |
| Power transmission: | hydrodynamic |
| Tank capacity: | 2,800 l |
| Brake: |
Westinghouse brake handbrake |
The BDŽ series 04 is a diesel locomotive with hydrodynamic power transmission of the Bulgarian state railway Balgarski Darschawni Schelesnizi (BDŽ), which goes back to the ÖBB 2020 from Simmering-Graz-Pauker . 50 locomotives of the machine were delivered by 1965, which were in service until after 2010. Two locomotives in the series have been preserved.
General
On the ÖBB 2020 built in 1960 , the Bulgarian railways BDŽ showed interest in operating on their non-electrified lines in order to replace the steam locomotives, and in 1961 twelve locomotives were provisionally ordered. These locomotives were called Dc H1 . The locomotives were able to convince on test drives, and so the order was increased to 30 locomotives. By the end of 1965, a total of 50 locomotives of the series had been produced. With the project about the locomotives, a draft for the Rhodope Railway was made using a locomotive based on the ÖBB 2095 with 1,100 hp, but this was not implemented.
The locomotives of the series 04 provided the service on the non-electrified lines of the BDŽ for decades. They were mainly deployed around Sofia . A special area of application resulted on the Strumatalbahn . After 2010, the locomotives were replaced by the class 07 locomotives, mainly because the locomotives only had steam heating . In 2011 there were still two locomotives that were no longer operational. Opinions differ as to which locomotives have been preserved as museum locomotives; 04 012 is mentioned once, another source mentions 04 04 as a museum locomotive.
technical description
On the welded bridge frame of the locomotive, the superstructures, which were made in skeleton construction, are placed. The engine room of the locomotive, in which the two symmetrically arranged machine systems are housed, is located between the end driver's cabs. The boiler is located between the two machine systems in the middle of the machine room . Compared to the prototype locomotive, the Bulgarian series locomotives have only undergone few changes, some fans in the straight side walls have been saved on the series locomotives, only the color scheme has been changed, gray locomotive frame, wine-red locomotive frame lower part and white upper part.
The regular are on the end sides of the frame draw and buffing gears housed. The locomotive frame and superstructures are supported on the sliding pieces of the welded bogies via a cradle with leaf springs. The bogie linkage is implemented via pivot pins. These are elastically mounted in the bogie, installed deep, and transmit the pulling and braking forces to the locomotive frame. Elastic links, which act on the weighing beam, are also provided for the transmission of tensile force. The bogies are of a simple design, the roller-mounted wheel sets are guided by rubber -mounted handlebars. The wheel sets are cushioned by leaf springs below the wheel bearings. A block brake with plastic brake blocks is used to brake the wheel sets ; each wheel set is controlled by a brake cylinder. The locomotive's handbrake only acts on the bogie below.
Each machine system of the locomotive consists of the 12-cylinder four-stroke diesel engine T 12b from SGP and the fluid transmission L 28 from Voith . The diesel engine achieved its performance with engine charging . It drove the fluid transmission equipped with two converters via an elastic coupling . Of course, the switchover happened automatically depending on the engine speed and driving speed. The reversing gear is flanged to the fluid transmission , it drives the outer gear sets of the bogies, from here the inner gear sets were driven via through drive.
The on-board network of the locomotive was fed by an alternator or the battery. The fans placed above the flow gears in the lower half of the straight side wall were cooled by a hydrostatically driven fan. The switching on and off of the fans as well as the control of the blinds for the fans was done depending on the cooling water temperature. An oil-fired Clayton boiler was used to heat the train . It had a steam output of 750 kg / h. Two hydrostatically driven air compressors with an output of 2,000 l / min each generated the required compressed air. The locomotive was controlled electro-pneumatically in 15 speed steps. The control panels are located in the driver's cab on the right-hand side of the driver's cab. A BBC route safety driving circuit, combined with a Sifa relay for time impulses, was used to monitor the train driver .
See also
literature
- Wolfgang Glatte, Lothar Reinhardt: Diesel Locomotive Archive , Transpress-Verlag, Berlin 1970
Web links
Individual evidence
- ↑ a b Wolfgang Glatte, Lothar Reinhardt: Diesellok-Archiv , Transpress-Verlag, Berlin 1970, page 168
- ^ Paul Engelbert: Schmalspurig durch Bulgarien , Stenvalls Verlag, Malmö 2002, ISBN 91-7266-155-0 , page 96
- ↑ a b Forum reports on the 04 series on turntable online
- ^ Article on turntable-online about the 04 series