MÁV In
| MÁV In / MÁV series 203 | |
|---|---|
 Factory photo of the MÁV In 802
|
|
| Numbering: | MÁV In 802–825 MÁV 203,001–024 |
| Number: | 24 |
| Manufacturer: | Budapest |
| Year of construction (s): | 1906-1908 |
| Axis formula : | 2B1 n4v |
| Gauge : | 1435 mm ( standard gauge ) |
| Length: | 12,226 mm |
| Height: | 4,570 mm |
| Width: | 3,100 mm |
| Fixed wheelbase: | 2,200 mm |
| Total wheelbase: | 9,758 mm |
| Empty mass: | 66.5 t |
| Service mass: | 74.0 t |
| Friction mass: | 32 t |
| Driving wheel diameter: | 2,100 mm |
| Impeller diameter front: | 1,220 mm |
| Rear wheel diameter: | 1,040 mm |
| Control type : | Heusinger |
| Number of cylinders: | 4th |
| HD cylinder diameter: | 360 mm |
| LP cylinder diameter: | 620 mm |
| Piston stroke: | 660 mm |
| Boiler overpressure: | 16 atü |
| Number of heating pipes: | 293 |
| Heating pipe length: | 5,250 mm |
| Grate area: | 3.895 m² |
| Radiant heating surface: | 12.65 m² |
| Tubular heating surface: | 251.35 m² |
| Evaporation heating surface: | 264.0 m² (in contact with water) |
| Brake: | Westinghouse |
The MÁV In was an express train - steam locomotive series of the Hungarian State Railways MÁV.
Since the two test locomotives MÁV Il 701 and MÁV Im 801 apparently did not provide the desired performance, the MÁV ordered a four-cylinder compound locomotive in Budapest in 1906 , of which 24 were finally purchased by 1908.
The boiler was much larger than the Il and Im. The total length of the machines also increased due to the length of the boiler. However, this also increased the total weight and axle weight, so that they could only be used on a few routes. They therefore ran express trains mainly on the Budapest - Pozsony - Marchegg route . The machines already had the pointed smoke chamber door typical of Hungary. The four cylinders drove the first coupling axle.
She won the Grand Prix at the 1906 World Exhibition in Milan .
In the second scheme of MÁV, the vehicles were in the category In filed with the numbers 802 to 825. In the third scheme valid from 1911, they were then referred to as 203.001-024.
literature
- Type sheets of the machine works of the Royal Hungarian State Railways . 1907.
- Mihály Kubinszky (ed.): Hungarian locomotives and railcars . Akadémiai Kiadó, Budapest 1975, ISBN 963-05-0125-2 .
- Ernő Lányi et al .: Nagyvasúti Vontatójárművek Magyarországon . Ed .: Közlekedési Múzeum. Kölekedési Dokumentációs Vállalat, Budapest 1985, ISBN 963-552-161-8 .