VM 46 DF Marine Propulsion Engine

Photos

Based on the successful M 43 C MaK medium speed engine, the M 46 DF was designed by Caterpillar Motoren, Kiel to meet and exceed the reliability and lifetime expectations of the M 43 C while maintaining its class leading position regarding operational efficiency. With its clean design, the M 46 DF does allow fast and easy access to the system and components supporting the operation, service and maintenance simplicity MaK products are known for. Designed to operate on gaseous- as well as liquid (MDO HFO) fuels, the M 46 DF will meet IMO III emission limits while operating in gas mode and injecting a small amount of ignition fuel to control combustion. Attention was paid to the customers´ demand for a safe and reliable operation at varying engine loads and gas qualities.

Power Range
10800 - 15440 kW
Speed Range
500 / 514 rpm
Emissions
IMO II in diesel mode / IMO III in gas mode
Aspiration
Turbocharged

Specs

Power Rating

Power Range
10800 - 15440 kW
Power Range
10800 - 15440 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
Swept Volume
6181.7in3
Configuration
12,16 Cylinder
Speed Range
500 / 514 rpm
Emissions
IMO II in diesel mode / IMO III in gas mode
Aspiration
Turbocharged
Bore
18.11in
Stroke
24.02in
Swept Volume
6181.7in³

Dimensions & Weights

Minimum Dry Weight
352740lb
Minimum Length
387.7in
Minimum Height
200.7in
Minimum Width
153.1in
Maximum Length
470.2in
Maximum Height
201.7in
Maximum Width
158.5in
Minimum Dry Weight
352740lb
Minimum Length
387.7in
Minimum Height
200.7in
Minimum Width
153.1in

Features

Operational Simplicity

Service & Maintenance Simplicity

Operation on natural gas with min. methane number of 55 possible at reduced load.

Supports HFO operation according to CIMAC H55/K55 in diesel mode.

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 withour 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