At Nor-Shipping 2009, held in Oslo, Norway, Cummins Inc. showcased its EPA Tier 2 certified and IMO Tier II compliant Quantum System 50l engine - the first time a QSK50 has been publicly exhibited in Scandinavia.
The QSK50 is a V-16 cylinder, 4 stroke diesel engine with ratings from 1193-1342kW (1600-1800bhp). The QSK50 is ideally suited for high-hour demanding applications such as fishing vessels requiring higher horsepower, offshore support, towing, cargo and passenger transport.
Engine design
The reliable base engine uses common components from K19, K38 and K50 engines. A new cast-iron, ductile single-piece piston with nitride-coated rings and hardened cylinder liner provides durability and long life.
Fuel system
The Modular Common Rail Fuel System features a simplified design which provides constant high injection pressure regardless of engine speed or load conditions. Benefits include low noise and vibration for quiet operation, idle stability and improved low-end torque.
Cooling system
Two-pump, two-loop, low temperature aftercooling maximises efficiency and improves performance. The engine-mounted titanium plate heat exchanger provides superior durability with minimal maintenance requirements.
Exhaust system
The triple-wall water-cooled exhaust manifold features an air gap between exhaust gas and jacket water to maintain thermal efficiency while cooling engine surface temperatures. The design is a fabricated single piece construction that eliminates potential exhaust leakage. There is a single exhaust collector for reduced installation expense.
Air system
A water-cooled turbocharger is optimised for vessel operating conditions and safety. A mounted or remote marine grade air cleaner with replaceable canister also reduces maintenance cost
Lubrication system
A standard capacity 151l (40 gal) or high capacity 204l (54 gal) marine grade oil pan is included. Handed Cummins spin-on oil filters are available for easy accessibility and servicing
