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.
SPECIFICATIONS
Power Range5400 - 8685 kW
Speed Range500 / 514 rpm
EmissionsIMO II in diesel mode / IMO III in gas mode


power rating
Power Range5400 - 8685 kW


engine specifications
Speed Range500 / 514 rpm
EmissionsIMO II in diesel mode / IMO III in gas mode
AspirationTurbocharged
Bore460 mm
Stroke610 mm
Rotation (from flywheel end)Counterclockwise / Clockwise
Configuration6,7,8,9 Cylinder
Swept Volume101.3 l/cyl
dimensions
WeightsMinimum Dry Weight
940 t
Dimensions Weights
minimum length
8330 mmDimensions
weights
Maximum Length10768 mm
dimensions
WeightsMinimum Height
5130 mm
Dimensions Weights
maximum height
5501 mmDimensions
weights
Minimum Width2961 mm
dimensions
WeightsMaximum Width
2961 mm
M 46 DF 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)
M 46 DF OPTIONS
- 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