EMD SD22ECO

EMD SD22ECO

Type and origin Power type Diesel-electric Builder Electro-Motive Diesel (EMD)

Specifications AAR wheel arr C-C Gauge 4 ft 8 1⁄2 in (1,435 mm) Prime mover 710G3A, EMD 8–710G3A–T2 Cylinders V8 Transmission Diesel-electric

Performance figures Power output

The EMD SD22ECO is a C-C diesel-electric locomotive rebuilt by Electro-Motive Diesel. It is, along with the GP22ECO, primarily the application of a conversion kit to an existing EMD SD40-type locomotive. This involves replacing the existing prime mover with an EPA Tier-II-compliant turbocharged V8 710G3A, with Electronic fuel injection. The prime mover is mated to an AR10 alternator for traction power, a CA6 alternator for control power, and a computerized control system.

This conversion does not alter the external appearance of the locomotive.

Advertised benefits include:

• EPA Tier-II compliance.
• Fuel savings up to 25%.
• Lube oil savings up to 50%.
• Upgradeable software can be tuned for reduced emissions or improved fuel efficiency.
• Microprocessor control offers diagnostics, wheel slip control, and optimal wheel/rail adhesion.
• 184-day maintenance cycle instead of 92-day.
• 15,000 MWh overhaul cycle.
• Reduced maintenance expense due to use of standard 710 prime mover.
• Automatic Engine Start Stop system keeps locomotive ready without wasting fuel.

References

• SD22ECO advertisement by EMD. Retrieved on August 27, 2009 (2009-08-27)
• 710ECO Repower Solutions by EMD. Retrieved on August 27, 2009 (2009-08-27)

External links

• Railroad Picture Archives – Photographs of the EMD SD22ECO.