Railpower RP20BD

RP20BD
UPY #2661 at the Eureka Yard in Houston, Texas.
Type and origin
Power typeDiesel-electric
DesignerRailPower Technologies
BuilderRailPower Technologies
Build date2006–
Total produced107
Specifications
Configuration:
​
 • AARB-B
 • UICBo'Bo'
Gauge4 ft 8+1⁄2 in (1,435 mm)
TrucksStandard B-B Rebuilt Trucks
Wheelbase9'-00"in
Length61'-02"in
Height15'-04.5"in
Loco weight275,000 lbs
Fuel typeDiesel fuel
Fuel capacity3000 gallons
Prime moverx3 Deutz TCD2015 V08 V8 Engines
RPM range1500-2100 rpm ​
 • RPM idle1500 rpm
 • Maximum RPM2100 rpm
Engine typeFour-stroke diesel engine
AspirationTurbocharger
Displacement15.9 liters (970 CUI) per engine (Roughly 47.7 liters or 2,910.83 CUI in total)
GeneratorNEWAGE 752RDL
Traction motorsx4 General Electric 752AF
Cylinders8
Cylinder size5.2 in × 5.7 in (130 mm × 140 mm)
TransmissionDiesel-electric
Loco brakeAir brake
Train brakesAir brakes
Performance figures
Maximum speed112.654 km/h (70 mph)
Power output2,000 hp (1.49 MW)
Tractive effort47 lbf (0.21 kN)
Career
OperatorsUnion Pacific Railway, Norfolk Southern, CSX Transportation, R. J. Corman Railroad Group, Sierra Northern Railway, Modesto & Empire Traction Company, Genesee & Wyoming Inc. (and other properties under the name), Northwestern Pacific Railroad, Port of Montreal
NicknamesGenset
LocaleUnited States Of America, Canada
Delivered2006-2013

The RP20BD is a diesel-electric switcher locomotive built by Railpower Technologies. It is a "genset" locomotive, having three engine-generator sets.[1]

The engines are computer controlled, with the computer stopping and starting engines on a rotating basis, as required to produce the horsepower needed at any given moment.[2]

RP20BDs are rebuilt from older locomotives such as the General Electric Dash 7 series and EMD General Purpose series.[3]

References

  1. ↑ "Exhaust Emissions and Fuel Consumption of a Railpower RP20BD Switcher Locomotive". ASME. 2009.{{cite web}}: CS1 maint: deprecated archival service (link)
  2. ↑ "Up to 60% Reduction In Fuel Cost". RJ Corman Railpower Locomotives. Archived from the original on September 5, 2013.
  3. ↑ "Switcher, 4 & 6 Axle Locomotives". RJ Corman Railpower Locomotives. Archived from the original on September 29, 2013.