EMD: H-Engine

H-Engine

Contents: H-Engine : Auto Start : FIRE™ System : Radial Truck : IntelliTrain™

Today's rail environment requires more than just high horsepower, tractive effort and speed. It also calls for reliability, fuel efficiency, emission control and ease of maintenance. And that's just what Electro-Motive's new 16-cylinder, 4-cycle, GM16V265 H-Engine delivers.

EMD's new H-Engine has emerged from a unique synchronous development process: Design engineers and manufacturing engineers worked together from the start to make sure that this new high-performance prime mover could be built, operated and maintained with unprecedented power and performance.

H-Engine Specifications

6300 BHP at 1000 rpm With AC traction, this means substantially higher tractive effort and adhesion plus increased engine durability, all in existing EMD locomotive platforms. One unit replaces two 3000 HP models.	Single inboard sectioned camshaft The result of totally dedicated design effort, this internal camshaft location allows for increased aftercooling capacity and frees up space for future enhancements without the need to expand the total engine profile.
265 mm bore; 300 mm stroke Bigger pistons and shorter piston travel mean lower piston speed for reduced component wear and longer life.	Ductile iron cross-flow cylinder head for faster and more efficient removal of exhaust gases. Results include more complete combustion, higher fuel efficiency and reduced exhaust emissions.
Cast ductile iron crankcase Stronger than the conventional fabricated-steel crankcase, this innovation enables the H-Engine to withstand the stresses of higher horsepower operation.	Power-pack concept The H-Engine retains EMD's popular feature enabling rod, liner, piston and head to be removed as a unit for simplified maintenance.
EMD designed twin turbochargers for better fuel economy and improved response.	Antifreeze cooling system enables engine to be shut down without draining of coolant
Hydraulic tensioning This feature enables fasteners to be installed without distortion of components or of the fasteners themselves.	Pump-short line-nozzle fuel injection A standard item for 4-stroke engines, this feature adds reliability as well as fuel economy.

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