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MAN Launches Medium-Speed Two-Stage Turbocharged Engine

Posted on June 7, 2011

MAN Diesel & Turbo has introduced its new two-staged turbocharged 18V48/60TS diesel engine. The 18-cylinder vee engine is rated for 1200 kW/cyl at 500 r/min with specific fuel oil consumption of 171.1 g/kWh, while retaining an output of 1050 kW/cyl. Bore and stroke is 480 mm and 600 mm, respectively.

The engine design features a modified fuel-injection nozzles for the higher power-output range, a three-ring piston with a higher compression ratio, a modified camshaft for enhanced Miller timing, and an addition exhaust bypass valve to avoid smoke during start-up, said the company.

The high-pressure turbocharger is directly mounted to the engine with the low-pressure turbocharger located upstream on its own steel frame. The combustion-air and exhaust-gas piping between both turbochargers is fitted with compensators for insulation from vibrations.

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