Wärtsilä 46F Rated Powers, Dimensions (mm) and weights (tonnes)

Wärtsilä 46F

Best-in-class fuel economy & outstanding power-to-weight  as well as power-to-space ratios

 

The technologically advanced Wärtsilä 46F can be run on either heavy fuel oil (HFO), marine diesel oil (MDO), or on light diesel when being operated within strict coastal or port emissions areas. This fuel switching can take place smoothly and without power interruption across all engine loads.

This flexibility enables the operator to select the fuel according to price, availability, and the need to meet local emissions regulations. 

The Wärtsilä 46F engine is fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention.

Wärtsilä 46F    IMO Tier II
Cylinder bore 460 mm Fuel specification: 
Piston stroke 580 mm Fuel oil 700 cSt/50oC
Cylinder output 1200 kW/cyl   7200 sR1/1000 F
Speed 600 rpm  ISO 8217, category ISO-F-RMK 700
Mean effective pressure 24.9 bar  L engine SFOC 171 g/kWh at ISO condition
Piston speed 11.6 m/s  V engine SFOC 170 g/kWh at ISO condition
Option: Lubricating oil module integrated on engine.

 

Rated power
Engine type kW
6L46F 7 200
7L46F 8 400
8L46F 9 600
9L46F 10 800
12V46F 14 400
14V46F 16 800
16V46F 19 200

 

Dimensions (mm) and weights (tonnes)
Engine type A A B C D F Weight
6L46F 8 430 8 620 3 500 2 930 3 750 1 430 97
7L46F 9 260 9 440 3 800 2 950 3 750 1 430 113
8L46F 10 080 10 260 3 800 2 950 3 750 1 430 124
9L46F 10 900 11 080 3 800 2 950 3 750 1 430 140
12V46F 10 080 10 150 3 820 4 050 3 800 1 620 173
14V46F 11 650 11 729 4 243 4 678 3 800 1 620 216
16V46F 12 700 12 779 4 243 4 678 3 800 1 620 233

 

Engine dimensions

A  - Total length of the engine when the turbocharger is located at the flywheel end.
A - Total length of the engine when the turbocharger is located at the free end.
B - Height from the crankshaft centreline to the highest point.
B - Height from the crankshaft centreline to the highest point when the turbocharger is located at the flywheel end.
C - Total width of the engine.
C - Total width of the engine when the turbocharger is located at the flywheel end.
D - Minimum height from the crankshaft centreline when removing a piston.
F - Distance from the crankshaft centreline to the bottom of the oil sump.

Dimensions and weights

Specific fuel oil consumption

At ISO standard reference conditions
Lower calorific value of fuel 42 700 kJ/kg
Tolerance 5%
Without engine driven pumps
At 85% load 

ISO standard reference conditions

Total barometric pressure: 1.0 bar
Suction air temperature: 25 °C
Charge air, or scavenge air, cooling water temperature: 25 °C
Relative humidity: 30%

Wärtsilä engines are delivered with the UNIC embedded engine management system.


The UNIC system is designed to ensure extended lifetime for large marine diesel and gas engines operating in the toughest of conditions. Special attention has been paid to temperature- and vibration endurance throughout the design, while the highest priority has been given to operational reliability.
 

Key features of the UNIC system include the engine safety system, local monitoring, speed control with loadsharing, fuel injection- and timing control, knock detection, alarm signal acquisition, start/stop sequencing, load reduction request, system diagnostics, and a fieldbus interface as applicable for each engine configuration.

Thanks to the electronic control, the engine can be adapted to different operating conditions. Furthermore, the pre-tested configuration allows the engine or generating set to be made ready for operation with a minimum of commissioning and installation work.

Wärtsilä 46F Rated Powers, Dimensions (mm) and weights (tonnes) Wärtsilä 46F Rated Powers, Dimensions (mm) and weights (tonnes)