DB class V 52
| DB class V 52 (1964–1968) DB class 252 (from 1968) |
|
|---|---|
| Numbering: | V 52 901-902 |
| Number: | 2 |
| Manufacturer: | Gmeinder & Co. |
| Year of construction (s): | 1964 |
| Retirement: | at the DB: 1973 |
| Type : | B'B 'ie |
| Gauge : | 1000 mm ( meter gauge ) |
| Length over buffers: | 9,780 mm |
| Height: | 3,434 mm |
| Width: | 2,400 mm |
| Trunnion Distance: | 4,080 mm |
| Bogie axle base: | 1,700 mm |
| Total wheelbase: | 5,860 mm |
| Smallest bef. Radius: | 50 m |
| Service mass: | 39.00 t |
| Friction mass: | 39.00 t |
| Wheel set mass : | 10.00 t |
| Top speed: | 40 km / h |
| Installed capacity: | 2 × 198 kW (2 × 270 PS) |
| Starting tractive effort: | 13,200 kg |
| Driving wheel diameter: | 850 mm |
| Motor type: | 2 × MWM TRHS 518A |
| Rated speed: | 1,800 rpm |
| Tank capacity: | 1,800 l |
| Drive: | hydraulic |
| Brake: | Knorr - compressed air brake |
The locomotives of the series V 52 (from 1968: Series 252 ) were two modern narrow-gauge - diesel locomotives that in 1964 the German Federal Railways were built. They were supposed to rationalize the operation that had been carried out with steam locomotives on one of the two remaining meter- gauge lines in Baden-Württemberg . The two locomotives of the class V 52 are identical to the three locomotives of the class V 51 except for the gauge of 1000 mm and went to the narrow-gauge railway Mosbach – Mudau in 1964 as V 52 901 and V 52 902 , where they proved their worth. Both locomotives were sold to two German private railways in 1973 and previously switched to standard gauge at the manufacturer's works , later one locomotive was sold to a construction company and one to the Ferrovia Genova – Casella narrow-gauge railway in Italy . One of the two machines was reduced to meter gauge for this purpose. Both locomotives still exist.
history
prehistory
In the early 1960s, most of the remaining narrow-gauge railways in Baden-Württemberg were still running trains that were still being pulled by 13 operational steam locomotives, the majority of which were completely outdated at that time. In order to modernize and rationalize operations on these local lines with a gauge of 750 mm or 1000 mm of the German Federal Railroad, which are otherwise threatened with closure , the state of Baden-Württemberg provided grants for the development and construction of contemporary diesel locomotives .
development
The Deutsche Bundesbahn then asked for a powerful locomotive with a not too high axle load , which should be suitable for use in front of both passenger and freight trains, even on smaller track radii. The focus was less on high speed than on a robust and maintenance-friendly construction. Due to the subsidies from the state, only one company within Baden-Württemberg was considered for the contract.
The Gmeinder company in Mosbach / Baden then designed a four-axle bogie diesel locomotive, the basic design of which was based on a machine ( MaK series ) delivered in 1958 by MaK (now Vossloh Locomotives GmbH) in Kiel to Alsen'sche Portland-Cement-Fabriken KG in Itzehoe 400 BB ) with a track width of 860 mm. This narrow-gauge diesel locomotive, which performed well, had long, narrow stems and a driver's cab arranged in the middle. After being used in the cement works, it was sold to the Leer – Aurich – Wittmund small railway in 1966 , where it was switched to meter gauge . The machines designed by Gmeinder adopted the essential features of this factory locomotive, including the hydraulic power transmission .
construction
In 1963, the Deutsche Bundesbahn accepted Gmeinder's design, whereupon the well-known Mosbach locomotive factory received a corresponding license from MaK to build the new narrow-gauge diesel locomotives for Baden-Württemberg. The construction of the locomotives went smoothly and in 1964, after the usual test drives, Gmeinder delivered a total of two diesel locomotives of the V 52 series for 1000 mm gauge ( meter gauge ) to the DB. The factory numbers of Gmeinder denominated 5325 (V 52901) and 5326 (V 52902). In addition, in the same year, three diesel locomotives of the V 51 series were delivered, which were identical except for the wheelsets for 750 mm gauge.
commitment
The two new diesel locomotives for 1000 mm gauge were handed over to the narrow-gauge railway Mosbach-Mudau ("Odenwaldexpress") in 1964 immediately after delivery with the road numbers V 52 901 and V 52 902 in order to replace the remaining four completely outdated steam locomotives . From the beginning, both machines have proven to be successful designs that have proven themselves excellently in every respect. However, even these narrow-gauge diesel locomotives, which were most modern at the time, were ultimately unable to completely stop the decline of the corresponding local lines in Baden-Württemberg, as despite all the rationalization measures it was no longer possible to restore economically viable operations on all narrow-gauge railways - two of them with a 1000 mm gauge. The railway from Mosbach to Mudau still had lively freight traffic, but passenger traffic with a single daily pair of trains remained rather weak, so that the use of the V 52 on the German Federal Railroad did not last as long as originally planned on its only route.
The two locomotives proved their worth on the Mosbach – Mudau narrow-gauge railway due to their strength, especially in freight traffic, which was of relatively great importance because of the five manufacturing companies located on the route in Sattelbach , Krumbach and Limbach . A trolley operation made it possible to transport standard gauge freight wagons on the meter gauge. In addition, both machines also pulled passenger trains, often also which were composed of the four-axle passenger cars from 1965, which were also procured with state funds. But all attempts to rationalize the operation of the railroad ultimately failed. After five years of reliable service on the narrow-gauge railway from Mosbach to Mudau, both locomotives, which since January 1, 1968 have been referred to as standard-gauge vehicles according to the new DB series scheme with computer-readable vehicle numbers, became class 252 after the closure of this line on June 2, 1973 sold to two private railways in Baden-Württemberg and converted to standard gauge due to state subsidies . In addition, the driver's cab was widened, which, together with a later elevation of the centrally arranged driver's cab, made the 252 901 look quite unusual and not very harmoniously proportioned. The 252 901 (ex V 52 901) went to the Albtalbahn in Karlsruhe as V 62 to be used there in freight and construction train service . The second locomotive 252 902 (ex V 52 902) came as VL 46.01 to the Südwestdeutsche Eisenbahn-Gesellschaft (SWEG; from 1984: Südwestdeutsche Verkehrs-Aktiengesellschaft), which it then used on the Kaiserstuhlbahn . After less than ten years of service on standard-gauge tracks, the two machines were sold in 1985 to the Italian company Gleismac Italiana SpA in Gazzo di Bigarello / Province of Mantua via the intermediary NEWAG in Oberhausen . The former V 52 901 came from there without any structural changes to the construction company Francesco Ventura SrL in Paola , southern Italy ; it now bears the number T 7152. In 2004, it could be seen among numerous other vehicles at the company's depot. The second machine (ex V 52 902) was sold to the narrow-gauge railway Ferrovia Genova-Casella in Genoa after a renewed conversion to meter gauge, in which the original appearance was restored . There it is used - now in blue paintwork - as D1 for route maintenance and in front of special trains.
technology
The four-axle, narrow-gauge diesel-hydraulic locomotives with two bogies of the series V 52 for 1000 mm and V 51 for 750 mm were a pioneering modern design at the time. Technically closely related were the V 51 and V 52 with the MaK 400 BB for 860 mm track width , which was delivered to the Alsen Portland cement works in Itzehoe in 1959. The power transmission also took place via hydraulics and a secondary gearbox. The somewhat long-legged and relatively narrow appearance of the vehicles was due to the fact that they had to be designed from the outset for the smallest required track width of quite narrow 750 mm and it would otherwise not have been possible to accommodate the components of the hydraulic power transmission including the axle drives . All machines had two MWM - diesel engines with an output of 270 hp (199 kW) at 1600 / min in front long stem, with the shorter rear porch of the found auxiliary diesel engine , the batteries , the compressor and the compressed air - and diesel tanks their Had space. The power transmission was done via a torque converter type Twin Disc 11500 MS450 and one manufactured by MaK range gear type MaK 3.162.04. The locomotives were designed for a maximum permissible service speed of 40 km / h, the actual possible maximum speed was around 65 km / h. The starting tractive effort for a diesel locomotive of this size was an impressive 13,200 kg (132.00 kN) maximum and 11,770 kg (117.70 kN) on average. The locomotives had a safety driving circuit (Sifa). All machines in this series had a funnel coupling .
Vehicle history
- V 52 901 (from 1968: 252 901 ): 1964 DB V 52 901; 1968 DB 252 901; 1974 AVG V 62 (before that, Gmeinder changed gauges to 1435 mm); 1984 NEWAG; 1984 Gleismac, Gazzo di Bigarello; 1987 Francesco Ventura, Paola T 7152; since 2003 Casella in Italy . 2008 still available there.
- V 52 902 (from 1968: 252 902 ): 1964 DB V 52 902; 1968 DB 252 902; 1974 SWEG V 46.01 (before that, Gmeinder changed gauges to 1435 mm); 1985 NEWAG; 1985 Gleismac, Gazzo di Bigarello; 1985/86 gauge change to 1000 mm; 1986 Ferrovia Genova – Casella , a narrow-gauge railway in Italy .; there in the 1990s conversion (dismantling of the front porch and attachment of a snow plow). 2014 Conversion by Tesmec SpA with a new engine and conversion to hydrostatic drive
Technical specifications
Construction data of the V 52 series from 1964 according to Gmeinder & Co. GmbH , if not contained in the info box
Dimensions
- Smallest drivable rounding on the drainage mountain: 50 m
Weights
- Weight per running meter: 4.07 t
Machine system
- Operating speed: 500–1600 rpm
Auxiliary engine
- Number of auxiliary motors: 1
- Auxiliary engine manufacturer: MWM
- Type: MWM AKD 412 Z
- Power: 21.75 PS (16.20 kW)
- Operating speed: 2000 / min
Power transmission
- Torque converter manufacturer: TwinDisc
- Type: 11500 MS450
- Gearbox manufacturer: MaK
- Type: 3.162.04
- Gear ratio: 1.31: 1
- Control: pneumatic
Power transmission
- Manufacturer axle drive: Gmeinder & Co.
- Counter axle drive type: GM 170 EVA / 398
- Gear ratio: 3.98: 1
- Axle drive type: GM 170 E / 285
- Gear ratio: 2.85: 1
- Manufacturer of cardan shafts: GWB
- Motor-gearbox: 367.5
- Transmission axle drive: 167.5
- Axle drive-axle drive: 167.5
traction
- Max. Tractive effort at the wheel circumference: 13,200 kg (132.00 kN )
- Average tractive effort at the wheel circumference: 11,770 kg (117.7 kN)
- Pulling force at Vmax: 2,000 kg
brake
- Knorr - compressed air brake with brake valve guide and direct brake via precision control valve
- Maximum operating pressure: 10 atm
- Drive: hydrostatic (max. 8.7 PS)
See also
- Class V 51 - version of this locomotive for a track width of 750 mm
- List of locomotive and multiple unit series of the Deutsche Bundesbahn
Web links
literature
- Journal article: Rudolf Heym, Martin Weltner: Series V 51/52. Simply indestructible . In: LokMagazin . No. 6 , 2006, p. 44-55 .
- Hans-Joachim Knupfer: Five reds from Mosbach (and one from Kiel). About the meaning and purpose of the series V 51 and V 52 of the Bundesbahn, part 1. In: Eisenbahn-Geschichte Nr. 89, Verlag DGEG-Medien GmbH, Hövelhof 2018, ISSN 1611-6283 , pp. 46–59.
- Hans-Joachim Knupfer: "The layman hardly suspects ...". The narrow-gauge diesel locomotive series V 51 / V 52 of the Deutsche Bundesbahn. The unusual technology of locomotives, part 2. In: Eisenbahn-Geschichte Nr. 90, Verlag DGEG-Medien GmbH, Hövelhof 2018, pp. 26–32.
Individual evidence
- ↑ In “Bembele” in: Lok Magazin 11/2016, p. 64 ff.
- ↑ When Bembele In: Lok magazine , Issue 11/2016, p. 67
- ↑ http://www.privat-bahn.de/
- ↑ http://www.loks-aus-kiel.de/index.php?nav=1401521&lang=1&id=19162&action=portrait