RT-flex50DF

Designed for LNG carriers, handysize tankers and bulk carriers, as well as feeder container vessels

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 IMO 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.

The RT-flex50DF, the first two-stroke, low-pressure, dual-fuel engine is available in 5-cylinder up to 8-cylinder configuration, covering a power range from 4,775 to 11,520kW at 99 to 124rpm.

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 RT-flex50DF

IMO Tier III in gas mode
Cylinder bore
500mm
Piston stroke
2050mm
Speed
99-124rpm
Stroke/bore
4.10
Mean effective pressure at R1
17.3 bar

Rated power, principal dimensions and weights

Output in kw at
124rpm99rpmLength A (mm)Length A* (mm)Weight (tonnes)
Cyl.R1R2R3R4
5720060005750477555766793200
6864072006900573064567670225
7100808400805066857336255
8115209600920076408216280
Output in kw at
124rpm99rpm
Cyl.R1R2R3R4
57200600057504775
68640720069005730
710080840080506685
811520960092007640
Cyl.Length A (mm)Length A* (mm)Weight (tonnes)
555766793200
664567670225
77336255
88216280
Dimensions in mm
B C D E E*
3150 1088 7646 3570 1900
F1 F2 F3 G
9270 9270 8800 1636

Brake specific consumption in gas mode

Rating point   R1 R2 R3 R4
BSEC (energy) kJ/kWh 7199 6962 7299 7062
BSGC (gas) g/kWh 142.7 137.7 144.7 139.7
BSPC (pilot fuel) g/kWh 1.5 1.8 1.5 1.8

Brake specific fuel consumption in diesel mode

Rating point   R1 R2 R3 R4
BSFC (diesel) g/kWh 184.3 182.3 184.3 182.3

Configuration

Extent of delivery

Extent of Delivery (EOD)

Modified 07 August 2018

Installation

Marine installation manual

Marine Installation Manual (MIM)

Modified 11 May 2018

Installation instructions & concept guidance

Complete Package

Modified 07 May 2018

DG9709 - Instruction and Limits for Engine Alignment

Modified 07 May 2018

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 for Operation on Distillate Fuels

Modified 07 May 2018

DG9723 - Concept Guidance Fuel Oil System

Modified 12 September 2018

DG9723 - Concept Guidance Fuel Oil Treatment

Modified 07 May 2018

DG9726 - Concept Guidance for HP SCR Installation

Modified 07 May 2018

DG9727 - DF Safety Concept

Modified 14 May 2018

DG9727 - Flushing Instruction for Gas Fuel System

Modified 14 May 2018

DG9730 - Recommended Fluid Flow Rates vs Velocities

Modified 07 May 2018

Drawings

Engine or Platform Outline Views

5 Cylinder Engine Execution

Modified 01 May 2018

6 Cylinder Engine Execution

Modified 01 May 2018

7 Cylinder Engine Execution

Modified 01 May 2018

Marine Installation Drawing Set (MIDS)

DG9715 - Engine stays

Modified 08 October 2018

DG9721 - Cooling Water system

Modified 27 March 2018

DG9722 - Lubricating Oil system

Modified 19 October 2018

DG9723 - Fuel Oil System

Modified 04 October 2018

DG9726 - Exhaust System

Modified 03 October 2018

DG9727 - Gas Fuel System

Modified 03 October 2018

MIDS complete package

Modified 19 October 2018

Pipe Connection Plan

5 Cylinder Engine Execution

Modified 25 September 2018

7 Cylinder Engine Execution

Modified 25 September 2018

Engine and System Dynamics

Countermeasures

Countermeasures

Modified 04 October 2018

Forces + Moments

Forces + Moments

Modified 04 October 2018

Operation & Maintenance

Manuals

Maintenance Manual

Maintenance Manual (MM)

Modified 11 May 2018

Operation Manual

Operation Manual (OM)

Modified 28 May 2018

Fuel Lubricants Water

Validated Fluids for Engine Operation

Cooling Water

Modified 22 May 2018

Fuel

Modified 22 May 2018

Lubrication & Validated Lubricants

Modified 22 May 2018

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