Cat Generator

Generator Sets

CM25

Inline Engines

720 rpm / 60 Hz

CATERPILLAR® ENGINE SPECIFICATIONS

Inline 6, 8, 9; 4-Stroke-Cycle Diesel Bore — mm………………………………………..255 Stroke — mm ……………………………………..400 Cylinder rating — kW……………………………..290 Mean Piston Speed — m/s …………………….. 9.6 BMEP — bar …………………………………..…23.7 Engine rating — kW 6 CM 25 …………………………………………..1740 8 CM 25 …………………………………………..2320 9 CM 25 …………………………………………..2610 Generator rating* — kW 6 CM 25 …………………………………………..1670 8 CM 25 …………………………………………..2227 9 CM 25 …………………………………………..2506 Specific fuel oil** consumption at 100% output — g/kW-hr …………………………………………182 Specific lube oil consumption — g/kW-hr 0.6 tol. 0.3 gr

* Generator efficiency: 0.96, cos ρ: 0.8 ** ISO conditions, net calorific value = 42 700 kJ/kg, without engine-driven pumps, tolerance +5%

FEATURES

■ DESIGNED FOR HEAVY FUEL OPERATION ■

LOW EMISSIONS

Design includes cooled exhaust valve seat rings, injector cooling integrated into lube oil system, and uncooled high efficiency turbocharger. This engine operates up to 700 cSt/50° C fuel quality according to CIMAC H55/K55.

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Exhaust emissions meet the latest World Bank Pollution Prevention standards.

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OVERALL ECONOMY

Cost savings include high availability, long life, low fuel and oil consumption, and low maintenance requirements.

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MINIMIZED MECHANICAL WEAR

HIGHEST-QUALITY ENGINE PARTS

High reliability, modular design, and integral construction reduce the number of components by 40 percent over conventional designs, minimizing mechanical wear.

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Corrosion resistant main and big-end bearings, semi dry-type nitrided liners with calibration insert, composite steel and cast iron piston.

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TOTAL POWER SOLUTIONS

EASE OF MAINTENANCE

This engine is designed to provide easy and quick maintenance, easily removable heads, quick removable fluid connections, and split conrod to allow piston removal without opening the bearing.

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ONE-PIECE DRY ENGINE BLOCK

Cast from nodular...