Sulzer (company that designed that engine) have a good reputation.
One chemical plant I worked at for a while installed a 3 cylinder Sulzer air compressor to increase their compressed air capacity during one of the plant upgrades. The compressor was good, but presented a lot of challenges to prevent the pipework from cracking due to some complex vibrations - Sulzer came up with some interesting additions to the discharge area, but they weren't completely successful.
I can't recall the displacement of the Sulzer compressor but it is 2 stories high. The main compressor has much greater capacity, but it is an axial compressor driven by a large steam turbine.
A turbo charged and intercooled, direct injection diesel for automotive use will usually have a BSFC figure less than 0.35 lbs/hp/hr at maximum power.Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). ...
For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range ...








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