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VM 46 DF

VM 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)

VM 46 DF 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

Select Units

Overview

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 Rating

  • Power Range 10800 - 15440 kW 10800 - 15440 kW

Engine Specifications

  • Speed Range 500 / 514 rpm 500 / 514 rpm
  • Emissions IMO II in diesel mode / IMO III in gas mode IMO II in diesel mode / IMO III in gas mode
  • Aspiration Turbocharged Turbocharged
  • Bore 18.11 in 460.0 mm
  • Stroke 24.02 in 610.0 mm
  • Rotation from Flywheel End Counterclockwise / Clockwise Counterclockwise / Clockwise
  • Configuration 12,16 Cylinder 12,16 Cylinder
  • Swept Volume 6181.7 in³ 101.3 l/cyl

Dimensions & Weights

  • Minimum Dry Weight 352740.0 lb 160.0 ton (US)
  • Minimum Length 387.7 in 9847.0 mm
  • Maximum Length 470.2 in 11943.0 mm
  • Minimum Height 200.7 in 5098.0 mm
  • Maximum Height 201.7 in 5122.0 mm
  • Minimum Width 153.1 in 3890.0 mm
  • Maximum Width 158.5 in 4027.0 mm

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.

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