Home Engine system Engine Marine type QSK50 Cummins

Engine Marine type QSK50 Cummins

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Overview :

1268-16414 kW | 1700-2200 hp

PowerTorqueCertification
1400 – 2200 hp1200 – 6300 lb-ftTier 3 / Stage IIIA, Tier 2 / Stage II
1044 – 1641 kW1627 – 8542 N.m
  • Designed to withstand the challenging conditions commercial marine operators often face; this same reliable, durable power is now available for recreational boating applications, including super yachts and yacht support vessels.
  • Improved idle stability and reduced noise and vibration are a direct result of the Cummins Modular Common Rail fuel system.
  • In-cylinder technology to meet IMO Tier II, EPA Tier 3 and EU Stg. 3a; platform for future emissions in the U.S. and globally.
  • Covered by a comprehensive one year warranty and backed by Cummins global service network.
  • Built at Daventry Engine Plant in Daventry, U.K.

Features

  1. Engine Design – Reliable base engine uses common components from the proven K19, K38 and K50 engines. A new cast-iron, ductile single-piece piston with nitride-coated rings and hardened cylinder liner provides excellent durability and long life.
  2. Fuel System – Modular Common Rail Fuel System features a simplified design which provides constant high injection pressure regardless of engine speed or load condition. Benefits include low noise and vibration for quiet operation, idle stability and low-end torque.
  3. Cooling System – Two-pump, two-loop, low temperature aftercooling maximizes efficiency and improves performance. Engine-mounted titanium plate heat exchanger provides superior durability with minimal maintenance requirements.
  4. Exhaust System – Dry-shielded exhaust manifold and turbocharger. Vertical or horizontal exhaust connections available for installation flexibility.
  5. Air System – Turbocharger optimized for vessel operating conditions and safety. Mounted or remote marine grade air cleaner with replaceable canister reduces maintenance cost.
  6. Lubrication System – Standard capacity 151 L (40 gal) and high capacity 204 L (54 gal) marine grade oil pan. Handed Cummins spin-on oil filters available for easy accessibility and servicing.
  7. Electronics – 24v Quantum System electronics feature an ECM to monitor operating parameters, while providing diagnostics, prognostics and complete engine protection. Simplified electrical customer interface box for all vessel connections to reduce installation complexity.
  8. Certifications – Complies with IMO Tier II, EPA Tier 3 and EU Stage IIIa emissions regulations. Designed to meet the International Association of Classification Societies (IACS) and SOLAS requirements. Consult your local Cummins professional for a complete listing of available class approvals.

Optional Equipment

  • C Command panels.
  • ELIMINATOR™ oil filtration system.
  • Premium coolant hose connections.
  • Duplex lube oil and fuel filtration.
  • SAE A or B (keel cooled only) accessory drives.
  • Front PTO adaptor.
  • CENTINEL oil management system.
  • Pre-Lube with QuickEvac.
  • Air or electric starter.
  • Rigid or flexible mounting arrangements.

Specification

ConfigurationV-16 cylinder, 4-stroke diesel
AspirationTurbocharged/Aftercooled
Displacement50 L (3068 in3)
Bore & Stroke159 X 159 mm (6.25 X 6.25 in)
RotationCounterclockwise facing Flywheel
Fuel SystemHigh Pressure Common Rail

Product dimension and weight

Overall Lengthmm (in)2780.2-109.46
Overall Blockmm (in)2044.7-80.5
Overall Widthmm (in)1573.4-61.95
Overall Heightmm (in)2231.6-87.86
Weightkg (lb)6270-13.823

Commercial and Recreational Marine Propulsion Engines (Variable Speed Ratings)

ModelkWMHPBHPSpeed (RPM)RatingEmissionsPerformance Curve
QSK50-M11268172417001600ContinuousIMO 2 | EPA 3 | EU 3aFR60072
QSK50-M11268172417001600ContinuousIMO 2 | EU 3aFR60066
QSK50-M11268172417001800ContinuousIMO 2 | EU 3aFR60245
QSK50-M11342182518001600Heavy DutyIMO 2 | EU 3aFR60068
QSK50-M11342182518001800Heavy DutyIMO 2 | EPA 3 | EU 3aFR6933
QSK50-M11342182518001800Heavy DutyIMO 2 | EU 3aFR60246
QSK50-M11342182518001900Heavy DutyIMO 2 | EPA 3 | EU 3aFR60073
QSK50-M11342182518001900Heavy DutyIMO 2 | EU 3aFR60064
QSK50-M11529207920501800Medium ContinuousIMO 2 | EU 3aFR60332
QSK50-M11628221421831800Diesel ElectricIMO 2 | EU 3a
QSK50-M11641223122001900Medium ContinuousIMO 2 | EU 3aFR60305

Marine Auxiliary Engines (Fixed Speed Ratings)

ModelkWMHPBHPSpeed (RPM)RatingEmissionsPerformance Curve
QSK50-DM11290175417301500 (50 Hz)Prime PowerIMO 2 | EU 3aFR60165
QSK50-DM11342182518001800 (60 Hz)Prime PowerIMO 2 | EPA 3 | EU 3a FR60096
QSK50-DM11342182518001800 (60 Hz)Prime PowerIMO 2 | EU 3a`FR60166
QSK50-DM11628221421831800 (60 Hz)Prime PowerIMO 2 | EU 3a FR60306

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