The NR/S basically follows the advantageous design principle of the NA/S series, only equipped with a radial turbine instead of an axial turbine. By the comparably simple design of the cast radial turbine, the NR/S series becomes the most economical choice for heavy fuel oil engines in the wide range from 450 kW up to 5,400 kW engine output per turbocharger without any compromise in reliability and performance.
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For engine outputs from 450 to 5,400 kW per turbocharger
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Maximum pressure ratio 4.5
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Suitable for heavy fuel, diesel oi, biofuell and gas operation
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Radial flow turbine
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Uncooled casings
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Inboard plain bearings
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Lubricated by the engines lube oil system
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Easy maintenance
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Market introduction 1995
NR/S Series technical data
Turbocharger Project Guides