M 46 DF Marine Propulsion Engine

M 46 DF Marine Propulsion Engine

The low emission footprint paired with high efficiency and reliability make the M 46 DF an ideal propulsion engine for operation inside and outside of environmental protected areas as well as waters with HFO limitations. Upcoming IMO III emission regulations, selected operation profiles and low diesel fuel costs make the M 46 DF a preferred engine regarding cost of operation.

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Power Rating

Power Range
5400 - 8685 kW

Engine Specifications

Speed Range
500 / 514 rpm
Emissions
IMO II in diesel mode / IMO III in gas mode
Aspiration
Turbocharged
Bore
18.11in
Stroke
24.02in
Rotation (from flywheel end)
Counterclockwise / Clockwise
Configuration
6,7,8,9 Cylinder
Swept Volume
6181.7in3

Dimensions & Weights

Minimum Dry Weight
207234lb
Minimum Length
328in
Maximum Length
424in
Minimum Height
202in
Maximum Height
216.6in
Minimum Width
116.6in
Maximum Width
116.6in

Standard Equipment

  • Air Inlet System
    • Air intake silencer / filter
  • Control System
    • Load sharing unit
    • Modular Alarm Control Protection System (MACS)
    • Speed governor
  • Cooling System
    • Electric cooling water preheater
    • HT cooling water pump (engine driven)
    • 2-stage charge air cooler
  • Exhaust System
    • Exhaust gas expansion joint
    • Exhaust gas insulated manifolds
    • Turbocharger at flywheel / counter flywheel end
  • Fuel System
    • Fuel circulating pump (electric driven / for MDO/MGO only)
    • Fuel indicator filter
    • Fuel pressure valve (separate / for MDO/MGO only)
  • Gas System
    • Gas valve unit
  • Instrumentation
    • Control push buttons and lamps
    • Emergency stop lever
    • Local control panel
    • Pressure and temperature indicator
  • Lube System
    • Dry sump
    • Lube oil plate cooler (separate)
    • Lube oil pump (engine driven)
    • Lube oil safety filter
    • Lube oil self-cleaning filter
    • Pressure regulating valve
  • Mounting System
    • High flexible coupling
    • Rigid mounting
  • Starting System
    • Electrical barring device
    • Starting air valve
  • General
    • Lifting device (rental)
    • Torsional Vibration Calculation (TVC)

Optional Equipment

  • Air Inlet System
    • Air inlet shut-off valve
    • Air intake transition piece
    • Expansion joint
    • Silencer / filter
  • Control System
    • Engine alarm system
    • Remote control system
    • Remote indicators (start air pressure, engine speed, etc.)
    • Starter for electric driven pumps
    • 24 DC UPS
  • Cooling System
    • Cooling water preheater steam / thermal oil / electrical
    • FW/SW plate cooler
    • HT cooling water pump (electric driven)
    • LT cooling water pump (electric driven)
    • Sea water cooling pump (electric driven)
    • Temperature control valve
  • Exhaust System
    • Exhaust gas ventilation module
    • Silencer (with or without spark arrester)
  • Fuel System
    • Fuel oil cooler
    • HFO final preheater
    • HFO pressure regulating valve
    • HFO self-cleaning automatic filter
    • HFO supply and booster pumps (electrical driven)
    • HFO treatment and supply modules
    • HFO viscosity control device
    • Mixing tank
  • Gas System
    • Gas flowmeter
    • LNG vaporizing unit
  • Lube System
    • Lube oil centrifuge
    • Lube oil pump (electrical driven)
    • Lube oil treatment and combined modules
    • Pre-lubricating oil pump (electrical driven)
    • Temperature control valve
    • Wet sump with dip stick
  • Mounting System
    • Flexible pipe connections
    • Resilient mounting
  • Propulsion System
    • Control system
    • Thrusters
  • Starting System
    • Starting air compressor
    • Starting air receiver
  • General
    • Engine PTO coupling
    • PTO alternator
    • PTO shaft on counter-flywheel side
    • Reduction gear
    • Reduction gear PTO coupling