EMD SD22ECO

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

Performance figures
Power output	2,150 hp (1,600 kW)

The EMD SD22ECO is a 2,150 hp (1,600 kW) 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

6- and 8-axle diesel-electric locomotives built by GM-EMD

Six-axle road power	SD7 SD9 SD18 SD24 SD28 SD30C-ECO SD32ECO SD35 SDP35 SD38 SD38AC SD38-2 SD39 SDL39 SD40 SD40X SD40A SD40-2 SD40-2W SD40T-2 SD40-2S SDP40 SDP40F SD45 SD45X SD45-2 SD45T-2 SDP45 SD50 SD50F SD60 SD60F SD60I SD60M SD70 SD70I SD70M SD70MAC SD70M-2 SD70ACe SD75M SD75I SD80MAC SD89MAC SD90MAC

Eight-axle road power	DD35 DD35A DDA40X DDM45

See also: List of GM-EMD locomotives

Low emissions locomotives

Altoona Works	BP4 GP33ECO

Brandt Road-Rail	Prototype

Brookville Equipment	BL12CG BL14CG BL20CG BL20G BL20GH BL36PH

Electro-Motive Diesel	F125 GP15D GP20D GP22ECO GT38ACe SD22ECO SD32ECO SD70ACe SD70M-2

GE Transportation Systems	ES40DC ES44AC ES44C4 ES44DC

MotivePower, Inc.	MP14B MP20B MP20C MP21B MP36PH-3C MP36PH-3S MP40PH-3C HSP46

National Railway Equipment	1GS7B 2GS14B 3GS21B 3GS21C 2GS36C-DE

Progress Rail Services	PR15B PR22B PR30C PR43C

Railpower Technologies	GGS2000D GG10B GG20B GK10B RP14BD RP20BH RP20BD RP20CD RP27CD

Siemens Mobility	Siemens Charger

See also: List of low emissions locomotives

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