DRG H 02 1001

H 02 1001
Quantity 1
Manufacturer BMAG
Year(s) of manufacture 1929/1930
Retired 1945
Axle arrangement 2'C1' h3v
Gauge 1,435 mm (4 ft 8 1⁄2 in)
Length over buffers 23,750 mm
Minimum curve 140 m
Empty weight 111.5 t
Service weight 115 t
Adhesive weight 60 t
Top speed 110 km/h
Indicated Power 2,600 PS
Coupled wheel diameter 2,000 mm
Driving wheel diameter 2,000 mm
Leading wheel diameter 1,250 mm
Trailing wheel diameter 850 mm
No. of cylinders 3
LP cylinder bore 220 mm
HP cylinder bore 600 mm
Piston stroke 660 mm
Boiler Overpressure 120 bar
Grate area 2.4 m²
Tender 2'2'T 32
Water capacity 32 m³

The DRG H 02 1001 was a remarkable high-pressure steam locomotive, built by the engineering firm of Schwarzkopff to the design of Dr L. Löffler.[1] The aim was not only to improve fuel economy—the usual reason for adopting high steam pressures—but also to increase the amount of power that could be produced within the German loading gauge.

The H02-1001 locomotive was the only example of the Schwarzkopff-Löffler high-pressure boiler system, a complex technology in which heat was extracted from the firebox by tubes filled with steam rather than boiling water. It was delivered in 1930 to the Deutsche Reichsbahn (DRG). Schwarzkopff guaranteed in the purchase contract a coal saving of 42% over a standard 01 locomotive design, but in the event the DRG never bought the locomotive.

Steam was delivered at no less than 1750 lbf/in² (105 kp/cm²) to two very small outside cylinders of 220 mm diameter. These were compounded with a single 600 mm LP inside cylinder. The wheel arrangement was 4-6-2.

After extensive trials it was found that any increase in efficiency was small compared with the greatly increased maintenance costs. The very complicated H02 1001 was also hopelessly unreliable.

See also

References

  1. ↑ "HO2". Hochdruck: German High-Pressure Locomotives. Retrieved 24 May 2010.

External links

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