X72DF

Designed for LNG carriers, Suezmax tankers, Panamax and Sub-Panamax containers and Capesize bulkers

WinGD low-pressure dual-fuel technology has been developed to respond to the market requirements of providing a propulsion solution capable to run efficiently, effectively and safely on gas, on top of conventional heavy fuel oil or diesel oil. The technology is based on the low pressure gas system concept. This system has a competitive initial investment and fulfils Tier III emission requirements without any external exhaust gas after treatment system. In brief, the technology allows a merchant two-stroke engine to simply, safely and reliably run on gas.

Available in 5-cylinder up to 8-cylinder configuration, covering a power range from 10,400 to 25,800kW at 69 to 89rpm.

All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice. 

Basic Engine Data

Technical Information

WinGD X72DF

IMO Tier III in gas mode
Cylinder bore
720mm
Piston stroke
3086mm
Speed
69-89rpm
Stroke/bore
4.29
Mean effective pressure at R1
17.3 bar

Rated power, principal dimensions and weights

Output in kw at
89rpm69rpmLength A (mm)Weight (tonnes)
Cyl.R1R2R3R4
5161251342512500104008085481
6193501611015000124809375561
72257518795175001456010665642
82580021480200001664011960716
Output in kw at
89rpm69rpm
Cyl.R1R2R3R4
516125134251250010400
619350161101500012480
722575187951750014560
825800214802000016640
Cyl.Length A (mm)Weight (tonnes)
58085481
69375561
710665642
811960716
Dimensions in mm
B C D E E*
4780 1575 10790 4710
F1 F2 F3 G
13655 13655 12730 2455

Brake specific consumption in gas mode

Rating point   R1 R2 R3 R4
BSEC (energy) kJ/kWh 7149 6906 7249 7006
BSGC (gas) g/kWh 142.3 137.3 144.3 139.3
BSPC (pilot fuel) g/kWh 0.8 1.0 0.8 1.0

Brake specific fuel consumption in diesel mode

Rating point   R1 R2 R3 R4
BSFC (diesel) g/kWh 182.2 180.2 182.2 180.2

Configuration

Extent of delivery

Extent of Delivery (EOD)

Modified 28 January 2019

Installation

Marine installation manual

Marine Installation Manual (MIM)

Published 07 May 2019

Installation instructions & concept guidance

DG9727 - Flushing Instruction for Gas Fuel System

Modified 14 May 2018

DG9727 - DF Safety Concept

Modified 13 November 2018

Complete Package

Modified 07 May 2018

DG9709 - Instruction and Limits for Engine Alignment

Modified 28 January 2019

DG9710 - Engine Seating/Foundation Fitting Instruction

Modified 07 May 2018

DG9715 - Assembly Instruction WinGD Friction Type Stays

Modified 28 May 2018

DG9715 - Assembly Instruction WinGD Single Acting Hydraulic Type Stays

Modified 07 May 2018

DG9721 - Concept Guidance for Fresh Water Generation

Modified 07 May 2018

DG9722 - Flushing Instruction for Lubricating Oil System

Modified 07 May 2018

DG9723 - Concept Guidance Fuel Oil Treatment

Modified 07 May 2018

DG9723 - Concept Guidance for Operation on Distillate Fuels

Modified 07 May 2018

DG9723 - Concept Guidance Fuel Oil System

Modified 12 September 2018

DG9726 - Concept Guidance for HP SCR Installation

Modified 07 May 2018

DG9730 - Recommended Fluid Flow Rates vs Velocities

Modified 07 May 2018

Drawings

Marine Installation Drawing Set (MIDS)

DG9710 - Engine Seating & Foundation

Published 10 April 2019

DG9715 - Engine stays

Modified 08 October 2018

DG9710-01 - Tool Engine Alignment

Modified 01 June 2018

DG9721 - Cooling Water system

Modified 13 December 2018

DG9722 - Lubricating Oil system

Modified 22 May 2018

DG9723 - Fuel Oil System

Modified 02 October 2018

DG9726 - Exhaust System

Modified 16 January 2019

DG9727 - Gas Fuel System

Modified 31 January 2019

MIDS-complete-package

Published 10 April 2019

DG9724 - Leakage Collection & Washing system

Modified 02 October 2018

DG9725 - Starting Air System

Modified 12 September 2018

Powertrain

Coupling Flange Crankshaft - Propeller shaft

Modified 29 May 2018

Engine and System Dynamics

Countermeasures

Countermeasures

Modified 04 October 2018

Forces + Moments

Forces + Moments

Modified 04 October 2018

Engine Alignment

Measurement Record Sheets

Record sheet for CWD+JUT measurements on the ship

Modified 28 January 2019

Instructions and Limits

Instructions and Limits - Documents Overview

Modified 28 January 2019

Introduction in Engine Alignment

Modified 28 January 2019

Engine Alignment in brief

Modified 28 January 2019

Guideline for shaft bearing arrangement and layout calculation

Modified 05 April 2019

Equivalent 2-D crankshaft model

Modified 28 January 2019

Guideline for alignment at installation

Modified 05 April 2019

Measurements during normal ship service

Modified 28 January 2019

Crankweb deflection limits

Modified 28 January 2019

Main bearing loads recommendation and limits

Modified 28 January 2019

Guideline for measurements

Modified 05 April 2019

Operation & Maintenance

Manuals

Maintenance Manual

Maintenance Manual (MM)

Modified 24 October 2018

Operation Manual

Operation Manual (OM)

Modified 25 January 2019

Fuel Lubricants Water

Validated Fluids for Engine Operation

Cooling Water and Additives for WinGD engines - V2

Published 04 January 2019

Diesel Fuels for WinGD engines - V2

Published 21 December 2018

Lubricants for WinGD engines - V3

Published 18 March 2019

WinGD_TIN008-1 Regulatory requirements liquid fuels for DF engines

Published 01 December 2018

WinGD_TIN011 IMO 2020 Operation Guideline

Published 20 May 2019

Technical Updates

Technical Information Note

WinGD_TIN001 Light_running_margin

Published 01 June 2015

WinGD_TIN003 Steam-production-control-(SPC)

Published 01 November 2015

WinGD_TIN005 X-DF-dynamic-combustion-control

Published 01 July 2016

WinGD_TIN006-1 Impact-back-pressure-EH-treatment-systems

Published 01 February 2019

WinGD_TIN007 Fuel-gas-design-pressure-BSGC-update

Published 01 March 2018

WinGD_TIN008-1 Regulatory requirements liquid fuels for DF engines

Published 01 December 2018

WinGD_TIN011 IMO 2020 Operation Guideline

Published 20 May 2019

Over a century of experience

Our Engine History

It all began with Rudolph Diesel and the Sulzer Brothers

Learn more