RENFE series 4000
| Series 4000 Series 340 |
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|---|---|
 RENFE 340 020 (previously 4020) in the National Railway Museum in Madrid
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| Number: | 32 |
| Manufacturer: | Lokomotiv-Export Union: Krauss-Maffei : 4000 - 4010 Spanish Babcock & Wilcox : 4011 - 4032 |
| Year of construction (s): | 1966-69 |
| Retirement: | until 1987 |
| Axis formula : | B'B ' |
| Gauge : | 1668 mm |
| Length over buffers: | 20 350 mm |
| Total wheelbase: | 16 250 mm |
| Service mass: | 88 t |
| Wheel set mass : | 22 t |
| Top speed: | 130 km / h |
| Installed capacity: | 2 × 1471 kW (2 × 2000 PS) |
| Wheel diameter: | 1016 mm |
| Motor type: | Maybach MD 870 |
| Power transmission: | hydraulic |
| Tank capacity: | 5000 l |
The series 4000 of the Spanish railway company Renfe was a series of hydraulic diesel locomotives that Krauss-Maffei had designed based on the DB series V 200.1 . When switching to EDP numbers, they were classified in the 340 series, with the serial numbers having three digits with an additional zero. Krauss-Maffei assigned the manufacturer designation ML 4000 B'B ' .
development
In 1964 Renfe placed the order for a series of diesel locomotives with the Lokomotiv-Export Union (LEU). This was a merger of Krupp , Krauss-Maffei and the Spanish Babcock & Wilcox plant in Bilbao, which had existed since 1918 . On the one hand, the new vehicles had to replace existing steam locomotives and, on the other hand, also increase the trailer load and speed on the routes. The climatic contrasts of the Spanish mountain stretches had to be taken into particular account: operating temperatures of −20 ° C to +45 ° C, snowstorms in winter and a humidity of 90% in summer had to be coped with. In parallel with the procurement of new locomotives, the track superstructure was reinforced. Krauss-Maffei built the first ten locomotives by the end of 1966. The remaining 22 were manufactured by Babcock & Wilcox on a license basis from June 1967 .
technology
Like the DB series V 200.1, the Spanish locomotives were equipped with two motors behind the end driver's cabs, but with a total output of 2942 kW, they were much more powerful. The hydraulic gears were adapted accordingly and provided with reinforced cardan shafts. The harsh climatic conditions required a large and powerful cooling system. Therefore the machines of the 4000 series were lengthened compared to the V 200.1 and provided with differently designed side walls. At 5000 liters, their tank capacity also exceeded that of the German machines. However, their top speed was lower at 130 km / h. The Spanish locomotives were intended for passenger and freight trains. The pulling and pushing device was adapted to Iberian conditions with the buffer spacing increased to 1950 millimeters. In addition to the compressed air brake, the operating devices for the suction air brake, which was still common on the Iberian Peninsula at the time, were available.
Mission history
From the summer of 1967, the Series 4000 took over all rail traffic on the Madrid - Saragossa - Mora la Nova line . This leads with long 16 and 18 ‰ ramps over the mountains of the Iberian Peninsula . The locomotives hauled passenger trains with 800 tons and freight trains with 1000 tons of train mass. Later the diesel locomotives were also used on other, no less difficult routes. They proved their worth and remained in operation in Spain until 1987. However, there were increasing failures later due to inadequate maintenance. Most of the locomotives were scrapped. The locomotives 340 020 are preserved in the Museo del Ferrocarril in Madrid and 340 026 at the AZAFT ( Asociación Zaragozana de Amigos del Ferrocarril y Tranvías ) in Zaragoza
literature
- Josep Miquel, Eduard Ramirez: RENFE 340: la tracción diesel . Reserva Anticipada, 2002, ISBN 84-95493-14-4 ( limited preview in Google book search).
Web links
- Spanish Railway Museum Madrid: Diesel locomotives (Spanish) ( page no longer available )
- Page with technical information about the 340 series (ex 4000) (Spanish)