KJI No. 15 to 17
| KJI No. 15 to 17 series 99.464 |
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|---|---|---|---|
| Numbering: | KJI No. 17 | KJI No. 15 and 16 99 4644 and 99 4641 |
|
| Number: | 1 | 2 | |
| Manufacturer : | Orenstein & Koppel | Raw Görlitz | |
| Year of construction (s): | 1907 | 1912, 1923 | 1963/1964 |
| Retirement: | 1969/1970 | ||
| Axis formula : | D n2t | ||
| Genre : | K 44.6 | ||
| Gauge : | 750 mm | ||
| Length over buffers: | 7700 mm (No. 15) , 7000 mm (No. 16) |
||
| Height: | 3200 mm | ||
| Total wheelbase: | 3100 mm | 3300 mm | |
| Empty mass: | 15.5 t | 18.5 t | |
| Service mass: | 18.8 t | 22.6 t | |
| Friction mass: | 24.0 t | ||
| Wheel set mass : | 6.0 t | ||
| Top speed: | 25 km / h | 30 km / h | |
| Indexed performance: | 135 PSi | 170 PSi | 200 PSi / 147 kW |
| Starting tractive effort: | 35.79 kN | ||
| Coupling wheel diameter: | 700 mm | 800 mm | |
| Control type : | Heusinger | ||
| Number of cylinders: | 2 | ||
| Cylinder diameter: | 300 mm | 340 mm | |
| Piston stroke: | 350 mm | ||
| Boiler overpressure: | 12 bar | ||
| Grate area: | 0.8 m² | 1.1 m² | 1.14 m² |
| Radiant heating surface: | 3.5 m² | 5.3 m² | |
| Tubular heating surface: | 29.7 m² | 43.03 m² | |
| Evaporation heating surface: | 32.7 m² | 40.00 m² | 48.33 m² |
| Water supply: | 2.4 m³ | 3.0 m³ | 4.0 m³ |
| Fuel supply: | 1.0 t coal | 1.0 t coal | 1.1 tons of coal |
The tank locomotives No. 15 to 17 of the small railways of the Jerichow I (KJI) district were acquired in 1926 by the Rosenberger Kreisbahn . After the takeover by the Deutsche Reichsbahn, the two remaining locomotives were given the road numbers 99 4641 and 99 4644 . The latter locomotive has been preserved and is to be refurbished to be operational.
history
The Rosenberger Kreisbahn had rebuilt its railway line to standard gauge by 1928 . The locomotives that became available were acquired by various railway companies in the Reich. The small railways of the Jerichow I district acquired three quadruple-coupled locomotives in 1926, which Orenstein & Koppel had built in 1923, 1912 and 1907 . The locomotives were given track numbers 15 to 17. The locomotives were largely identical in construction. The oldest locomotive, which was classified as No. 17, had different technical data.
In 1949 the Deutsche Reichsbahn took over the locomotives no. 15 and 16 and were given the road numbers 99 4644 and 4641 as narrow-gauge locomotives. In 1963/1964 the machines were subjected to a general overhaul. They received new welded boilers and driver's cabs with side walls drawn into the upper part, sun visors and hinged skylights. With the end of operations on the KJI route network in 1965, the locomotives were transferred to the small railways in the West and East Prignitz districts. In 1969 the 99 4641 was sold and was used as a heating engine for a while. The 99 4644 was handed over to the Rügensche Kleinbahn in 1969 and served the route to the Wittower ferry there until 1970 . In 1977 it was installed as a monument locomotive at the Neustrelitz depot. In 1994 the Prignitzer Kleinbahnmuseum in Lindenberg acquired the vehicle. An operational reconditioning is planned.
Constructive features
The locomotives had an outer frame. The kettle consisted of two shots . On the foremost shot sat the large steam dome with the regulator. The sandpit for the sand was arranged on the rear section of the boiler . The two Ramsbottom safety valves were right in front of the cab . The chimney was slightly conical in shape. The steam pipe sat between the sandpit and the safety valves.
During the renovation carried out in 1963/1964, the position of the boiler feed valves changed. In the original version, they were on the side of the long boiler. In the case of the new boiler, they sat on the top of the boiler behind the steam dome. The previously round sandpit has been replaced by a square welded version. The Latowski steam flare was placed in front of the chimney from behind.
The external two-cylinder wet steam engine worked on the third wheel set . During the conversion, the flat slide was replaced by a piston slide. The external Heusinger control had a Kuhn loop.
The leaf spring assemblies sat above the axle box bearings. The spring assemblies of the two front and two rear wheel sets were connected by a compensation lever.
The water boxes with a capacity of 3.0 m³ were located on both sides of the long boiler and reached up to the smoke chamber . The coal reserves of 1.0 t were arranged in a box behind the driver's cab.
After the takeover by the Reichsbahn, the locomotive received a compressed air brake and electric lighting. On 99 4644 the turbo generator was located next to the chimney and on 99 4641 across in front of the steam dome . The air pump was to the left of the smoke chamber. In 1966, the devices for the lever brake were retrofitted for use on the Prignitzer Bahnen .
literature
- Manfred Weisbrod, Hans Wiegard, Hans Müller, Wolfgang Petznick: German Locomotive Archive: Steam Locomotives 4 (Class 99) . transpress, Berlin 1995, ISBN 3-344-70903-8 , pp. 183 ff., 263 .
- Klaus Kieper, Reiner Preuß: GDR narrow-gauge railway archive . 2nd Edition. transpress Verlag, 1982, p. 222-223 (Reprint: 2011, ISBN 978-3-613-71405-2 ).
