Palatine R 4/4
| Palatine R 4/4, Bavarian R 4/4 DR series 92 20 |
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| Numbering: | Pfalz 123 (II) … 159 (II) Bavaria 4151 to 4192 DR 92 2001–2049 |
| Number: | 51 |
| Manufacturer: | Krauss |
| Year of construction (s): | 1913–1915 (Palatinate) 1918–1925 (Bavaria) |
| Retirement: | 1962 |
| Type : | D n2t |
| Genre : | Gt 44.16 (2001-2040) Gt 44.17 (2041-2049) |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 10,840 mm (2001-2027) 11,042 mm (2028-2049) |
| Service mass: | 66.9 t |
| Friction mass: | 66.9 t |
| Wheel set mass : | 16.9 t |
| Top speed: | 45 km / h |
| Indexed performance : | 419 kW |
| Driving wheel diameter: | 1,216 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 530 mm |
| Piston stroke: | 650 mm |
| Boiler overpressure: | 12 bar |
| Number of heating pipes: | 232 |
| Heating pipe length: | 4000 mm |
| Grate area: | 2.00 m² |
| Evaporation heating surface: | 125.1 m² |
| Water supply: | 7.5 m³ |
| Brake: | Hand brake acting on the front three axles (originally), Westinghouse air brake |
The identically constructed Palatine and Bavarian R 4 / 4s of the Royal Bavarian State Railways were tank locomotives without running axles with four coupled axles . They were intended for heavy shunting .
description
The first nine machines were built as the Palatinate R 4/4 in 1913 and 1915 for the Pfalzbahn, the following in 1918/19 and 1924/25 as the Bavarian R 4/4. Structurally they were similar to the Baden X b . A peculiarity was the high kettle under which the water container was located. The sand dome and the steam dome formed a structural unit. The locomotives could haul up to 1000 tons on the plain, with a gradient of five per thousand, a speed of 45 km / h was reached with 240 tons. The last series differed from its predecessors in the changed arrangement of the domes and the water box.
In 1925, the Deutsche Reichsbahn classified seven Palatine R / 4s with road numbers 92 2001 to 92 2007 and all Bavarian R 4/4s with road numbers 92 2008 to 92 2049 as class 92 20 in their numbering plan .
The first machines from the Palatinate were taken out of service in the mid-1930s, the last in the 1950s. In 1962, 92 2024 of the Nürnberg Hbf depot was the last locomotive to be retired.
Individual evidence
- ↑ a b c Lothar Spielhoff: Länderbahn steam locomotives . tape 2 . Baden, Bavaria, Palatinate and Württemberg. Weltbild, Augsburg 1995, ISBN 3-89350-819-8 , p. 94 (first edition: Franckh-Kosmos, Stuttgart 1990).
- ↑ a b c Horst J. Obermayer: Steam locomotives standard gauge . Weltbild, Augsburg 1995, ISBN 3-89350-819-8 , p. 217 (first edition: Franckh-Kosmos, Stuttgart 1990).