Japanese Marine Equipment Supporting forOFFSHOREYANMAR POWER TECHNOLOGY CO.,LTD.

No.
3https://www.yanmar.com/global/marinecommercial/AHTS

PSVFPSO

Drill Ship

Semi-sub1-1-1, Nagasu Higashidori, Amagasaki, Hyogo 660-8585 Japan
Tel : +81-6-6489-8042 / Fax : +81-6-6489-1082 / E-mail : vp-marine.sales@yanmar.com

ProductMarine propulsion and auxiliary diesel engines Type EY33

• Special chromium plating is applied to the piston ring,and special honing to the cylinder liners tooptimize lubrication of the sliding surfaces.
• The engine utilizes a two-stage air cooler to improve combustion during the HFO low load
operation by heating of air supply.

Improvement of Installation and Maintainability
Marine Engines Diesel Electric LNG

Engine model
TypeNo.of cylinders
Cylinder bore×strokemmContinuous rated output
kWEngine speed
min-1
Mean effective pressure
MPa
Generator capacity
kWe
Combustion system
Starting system
Engine dry masskg

Propulsion Engine
Auxiliary Engine
6EY33W
8EY33W
6EY33LW
8EY33LW
Vertical water -cooled 4-cycle diesel engine
6868330 x 440
2500~3360
3600~4500
2400~3600
4000~4800
750720 / 750
1.77~2.38
1.91~2.39
1.70~2.48
1.91~2.492250~3200
3350~4300
Direct-injection
Compressed Air Starting
39100
50900
38500
50900

Clean and Flexible Power YANMAR Gives you the BEST of Power Solutions
High Efficiency and High Performance• The latest simulation analysis technology has achieved optimum combustion matching.
• The dynamic analysis technology of major moving parts has achieved the optimization of bearing
shape to reduce mechanical loss.

High Reliability and High Durability• The enhanced high pressure fuel injection achieves the atomization of spray to reducecombustion residue.
• The engine optimizes the temperature on the cylinder head combustion surface to restrain
combustion to residual accumulation.
• The engine utilizes an exhaust valve made of Nimonic applied with a special filling to improve theerosion resistance of the mating surface.

• The arrangement of piping connection with the exterior is isolated at the front side of the engine.
• The engine is equipped as standard with a lubricating oil strainer, lubricating oil cooler andcooling water thermostat.
• The engine is equipped with an engine control panel, operation panel and lubricating oil priming
pump panel.
• The engine equipped with a cooling water pre-heating device (optional).
• The engine utilizes an integrated structure for the air cooler, lub. oil cooler etc.
to reduce the part count.
• The major bolts adopt a hydraulic tightening method for easy assembly and disassembly.

Environmental Load Reduction• The engine has reduced NOx emissions and improved fuel efficiency through the adoption of theYanmar original innovated combustion method and high-pressure mirror cycle system.
• The engine achieves optimum matching through the Yanmar SCR system in compliance with
NOx tier 3 regulations adopted by the intenational Maritime Organnization (IMO).

After-sales service
Yanmar is proud of the reliability of its diesel engines and we know the importance of the availabilityof replacement parts for keeping an engine as good as new.
To make us sure that our users get the replacement parts they want when they need them, Yanmar
has established a worldwide service network with representative strategically located in each of thekey market areas. They are there to help you.
ASIA : 30spot / MIDDLE EAST : 5spot / OCEANIA : 5spot / EUROPE : 10spot
AFRICA : 1spot / NORTH AMERICA : 7spot / SOUTH AMERICA : 2spot

Certifications / Applicable rules
ISOISO
9001 14001
IRS

RS

NKABS

LR

DNV
GL

RINA

BV

KR

CCS