Low Emission Engine already in operation Back in 2000, Caterpillar Motoren identi- fied three emission levels for the MaK marine product in order to cope with short to midterm emission regulations. These were a base line IMO engine, which fulfils MARPOL 73/78, Annex VI, an IMO-compli- ant engine with invisible smoke emissions and a Low Emission Engine (LEE) which meets the expected N0X emission range of IMO II and is also invisible in smoke. In addition, this strategy favours inside- the-engine means because of their clear advantage with respect to cost, complex- to increase the compression ratio...

Flex Cam Technology FCT (schematic diagram) Building upon the Emission Reduction System integration concept, FCT achieves synergy between flexible fuel systems and advanced air systems with maximum utilization of the current engine design. While maintaining high fuel injection pressure over the whole operating range, fuel injection and inlet valve timing are load controlled and influenced by a lever shaft which affects injection timing/ pressure and inlet valve events. Valve timing changes at part load to raise effec- tive compression and enhance complete combustion. In addition, shifting the...

Pneumatical actuating unit for adjusting injection- and valve timing by shifting relative lever positions to fuel and inlet cams. 4

M 25 C - Low Emission Engine ✓ Engine Description (Preliminary) Cylinder rating Mean piston speed Engine rating: consumption (g/kWh)* The engine fulfills MARPOL 73/78 Annex VI regulations. LCV = 42700 kJ/kg, without engine driven pumps Swept volume: pulse pressure clockwise, option: counter-clockwise Engine centre distance 6M25C 2,600 mm (2 engines side by side): 8,9 M 25 C 2,700 mm Piston in transverse direction X 1 = 2,420 mm of cylinder liner in transverse direction 2,510 mm Nozzle position: askfor availability This engine is only available with dry oil sump Engine with turbocharger at free...

M25C - Low Emission Engine * Technical Data (Preliminary) Performance data Maximum continous rating acc. ISO 3046/1 Minimum speed Brake mean effective pressure Firing pressure Specific fuel oil consumption Engine driven booster pump Stand-by booster pump Mesh size MDO fine filter Mesh size HFO automatic filter Mesh size HFO fine filter Nozzle cooling by lubricating oil system Engine driven pump Independent pump Working pressure on engine inlet Engine driven suction pump Independent suction pump Priming pump pressure/suck pump Sump tank content/dry sump content Temperature at engine inlet Mesh...

1 ) Reference conditions: LCV = 42700 kJ/kg, ambient temperature 25 °C charge air coolant temperature 25 °C, tolerance 5 %, +1 % for engine driven pump 2 ) Standard value based on rated output, tolerance ± 0.3 g/kWh 4 ) Charge air heat based on 45 °C ambient temperature

M25C - Low Emission Engine ✓ Heat Balance (Preliminary)

One Strong Line of World-Class Diesel Engines Perfect Solutions for Main Propulsion and On-Board Power Supply The Program: Quality is our Motto For more than 80 years we have devel- oped, built, supplied and serviced diesel engines - worldwide. Today Caterpillar Marine with its brands Cat and MaK offer high-speed and medium-speed engines with power ratings from 10 kW to 16,000 kW. Many different engine families are available to meetyour specific application needs. Cat and MaK diesel engines are distin- guished by high reliability, extremely low operational costs, simple installation and maintenance...

Caterpillar Marine Power Systems Production Facilities which manage all sales and product sup- port activities. They have direct responsi- bility for achieving the ambitious growth dealers with complete marine solutions. Caterpillar's global dealer network pro- vides a key competitive edge - customers deal with people they know and trust. Cat dealers strive to form a strong work- ing relationship with their customers, offering comprehensive and competent advice from project support to repair Some of the most advanced manufactur- ing concepts are used at Caterpillar loca- tions throughout the...

Caterpillar Marine Power Systems Caterpillar Marine Power Systems Europe, Africa, Middle East Caterpillar Marine Power Systems Miramar Park of Commerce Asia Pacific Caterpillar Marine Trading 25/F, Caterpillar Marine Center 1319, Yan'an West Road Caterpillar Marine Asia For more information please visit our website: Subject to change without notice. ©2009 Caterpillar All Rights Reserved. Printed in Germany. CAT, CATERPILLAR, their respective logos, ACERT, ADEM, „Caterpillar Yellow" and the POWER EDGE trade dress, as well as corporate identity used herein, are trademarks of Caterpillar and may...