MÁV MI
| MÁV MI MÁV series 10 |
|
|---|---|
 Company photo
|
|
| Numbering: | 10,001-002 |
| Number: | 2 |
| Manufacturer: | MÁVAG , Budapest |
| Year of construction (s): | 1908 |
| Retirement: | 1952 |
| Axis formula : | A1 n2vt |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 7,974 mm |
| Height: | 4,000 mm |
| Width: | 2,900 mm |
| Total wheelbase: | 3,500 mm |
| Smallest bef. Radius: | 160 m |
| Service mass: | 23.5 t |
| Friction mass: | 12 t |
| Wheel set mass : | 12 t |
| Top speed: | 60 km / h |
| Indexed performance : | 265 hp |
| Starting tractive effort: | 18.8 kN |
| Driving wheel diameter: | 1,180 mm |
| Impeller diameter: | 1,180 mm |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| HD cylinder diameter: | 360 mm |
| LP cylinder diameter: | 235 mm |
| Piston stroke: | 420 mm |
| Boiler overpressure: | 16 bar |
| Number of heating pipes: | 85 |
| Heating pipe length: | 2,000 mm |
| Grate area: | 0.86 m² |
| Evaporation heating surface: | 27 m² (in contact with water) |
| Water supply: | 2 m³ |
| Fuel supply: | 1 t |
| Brake: | Westinghouse brake |
| Particularities: | Brotan kettle |
The MÁV MI , from 1911 MÁV 10 , was a tank locomotive series of the Hungarian State Railways MÁV for branch line traffic. It was developed for branch lines with minimal line utilization and built in two copies.
history
Attempts to use simple tank locomotives went back to the year 1880 in order to be able to carry out rail traffic economically on branch lines with low line load. This type was the first series in which all possibilities of weight reduction and simultaneous increase in performance were used. Two examples of the locomotive were manufactured by MÁVAG , Budapest and included in the MI series . The locomotives carried a load of 110 t at a speed of 60 km / h. As an experiment, the locomotive was run up to 90 km / h, and it showed good running properties. The locomotives were not allowed to be used in shunting.
The locomotives survived the First World War . They were then used in Debrecen , Püspökladány , Hatvan and Békéscsaba to transport light passenger trains. After the Second World War there were sufficient opportunities to operate due to a lack of locomotives. Due to their small number and their outdated design, they were retired and scrapped in 1952.
technical features
The locomotives had some extraordinary features. The driving and running wheelset had the same diameter, the driving axle at the front and the running axle at the rear. The cylinders were arranged behind the drive axle. With this arrangement, the friction weight should be kept the same with a reduced water and coal supply.
The composite locomotives had an inner frame and were equipped with a Brotan boiler, which had a steam dryer according to the clench system. The machines had a high steam pressure of 16 bar at the time .
See also
literature
- Mihály Kubinszky (Ed.): Hungarian Locomotives and Railcars , Akadémiai Kiadó, Budapest, 1975, ISBN 963-05-0125-2 .
Individual evidence
- ↑ Mihály Kubinszky (Ed.): Hungarian Locomotives and Railcars , Akadémiai Kiadó, Budapest, 1975, ISBN 963-05-0125-2 , page 149