KHD A6M 420 R type B
| KHD A6M 420 R type B | |
|---|---|
| Numbering: |
BDŽ No. 55 and others |
| Number: | 16 |
| Manufacturer: | KHD |
| Year of construction (s): | 1940-1943 |
| Retirement: | until the late 1970s |
| Axis formula : | B. |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 7,770 mm |
| Height: | 3,197 mm |
| Width: | 2,995 mm |
| Total wheelbase: | 5,900 mm |
| Service mass: | 28,000 kg |
| Friction mass: | 28,000 kg |
| Wheel set mass : | 14,000 kg |
| Top speed: | 30 km / h |
| Installed capacity: | 121.5 kW (165 hp) |
| Driving wheel diameter: | 1,000 mm |
| Motor type: | KHD A6M / 420 |
| Motor type: | 6-cylinder four-stroke diesel engine with supercharging |
| Power transmission: | mechanically |
| Brake: | Indirect brake type Knorr |
The type series KHD A6M 420 R type B was a two-axle diesel locomotive with rod drive , which was designed for shunting service. From 1940 to 1943 16 locomotives were built by Klöckner-Humboldt-Deutz (KHD). These were in use until the 1970s.
Two locomotives have been preserved.
development
The locomotives are the further development of the KHD A6M 220 R from 1936. In the meantime, the locomotives had received the renewed diesel engine of type 4 , which, however, was identical in the main dimensions. It was delivered;
- a locomotive was used as a KHD works locomotive,
- two locomotives were sold to Deutsche Sprengchemie ,
- a locomotive was sold to a company in Halle (Saale) ,
- a locomotive was sold to the armed forces,
- a locomotive was sold to a coal production company in Bochum ,
- a locomotive was sold to the city of Saarbrücken ,
- a locomotive to Opel ,
- a locomotive to the United German Nickel Works ,
- a locomotive was given to a company in Breslau .
Six locomotives were delivered to Bulgaria for this purpose .
technology
The locomotives have a machine front end and a driver's cab behind it. The power is transmitted by a rod drive , with the jackshaft being mounted as a transmission output shaft between the drive wheels. Originally the locomotives had a connecting rod and a coupling rod as a power transmission.
The locomotives were driven by a high-speed six-cylinder four-stroke diesel engine from KHD, which was followed by a gearbox with reversing gear after a single-disc dry clutch .
They had a spacious cab with large windows.
commitment
German explosive chemistry
The locomotive was used by the company in a factory in Bad Sachsa and remained in the Harz Mountains until it was retired in 1990 . In 1993 it was handed over to the Braunschweig locomotive park .
Bulgaria
The six locomotives delivered to the BDŽ in Bulgaria were given the series designation 55 , which was later changed to the 61 series . The locomotive with the number 61.02 was kept for museum purposes after it was decommissioned. At the turn of the millennium, the locomotive was parked in a wagon factory in Drjanowo . This locomotive still has the original drive system with the drive rod from the jackshaft to the front axle.
Web links
- Website about Deutz locomotives before 1954 at www.lokmacher.de
- Website of the Braunschweiger Verkehrsfreunde association with a mention of the existing KHD A6M 420R
