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Diesel engines that deliverhigh power output whileexhibiting superlative

levels of fuel economy.The name is Yanmar.Diesels bred for the sea.

Recently the fuel cost component in the

overall cost of transportation has become

more important, and the call for energy

conservation has become louder. Engines

have needed to become more fuel efficient.

Yanmar has over many years developedengines displaying exceIlent fuel economy,

and has actively promoted fuel conservation

technology.

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Durability

Easy Maintenance

Reliability

Low Fuel Cousamption

Low Emission

Yanmar has developed various propulsion and

PTO systems, also automatic and remote

control operating systems which reliably

deliver high output and low fuel consumption.

As well as propulsion engines, we have a wide

range of energy efficient diesel power auxiliarysystems that are ideally suited to the needs of

the customer.

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Propeller

FPP and CPP available.

FPP:Optimum pitch by vesseltype and use.

CPP:Compatible with computer

control, ACL and OLP.

Can be installed in various

places besides the wheel house.

Monitoring

Vibration-proof Rubber

Yanmar's originalvibration-proof rubber

Propulsion System

The reliable propulsion that combines overall energy

saving with high output

Offset and co-axial types; oil pump and

oil feed cylinder housed in the reduction

gear for CPP.

Reduction (Reversing) Gear

Active Silencer

Frequency Hz

Without speaker sound

With speaker sound

Exhaust

Much Lower Exhaust NoiseYanmar's unique silencer system controls notonly low frequency noise but also noise in themost annoying to frequency range. Noise canbe reduced to below 70dB(A).The amount of noise reduction depends on the engine model and noise characteristics.

Control

equipment

Coolingfan box

Speakerbox

Monitor microphone

Sensor microphone

Terminalbox

The systems shown here are reference only and may varydepending on themarket,specifications and engine model.

Equipment illustration do not represent the ratios of actual

equipmentsizes.

Total Propulsion System

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MonitoringRemote Control

Pneumatic control

GovernorClutch

Pressure reducingvalve panel

Air tank Electropneumaticchange panel

Console, self-standing, console housing and desk top types available

Rollingresonance

Service speed range

Engine speed

Support SystemLabor saving for smoothvessel operationConvenient graphic display of the main and aux.engine operation status for centralized monitoring.

Electric signal

E/Rengine roomC/Rcontrol roomW/Hwheel house Thruster System

Thruster Room

Bow Deck

Wheel House

Thruster LOGravity Tank

Lube Oil LevelSwitch

Side Thruster

Driving DieselEngine

Thruster RoomInstrument PanelEngine starting, stoppingand monitoring

Engine staring, stoppingand monitoring operationof thruster

Portable TransmitterConvenient foroperation on thebow deck

Relay box

Thruster ControlPanel

(CW temp., engine LO pressure,reduction reversing gear LO pre-

ssure, battery charging, remote

control function, and low LO lev-el of gravity tank)

(CW temp., engine LO pressure,

reduction reversing gear LO pre-ssure, battery charging, remote

control function, and low LO lev-el of gravity tank)

Drive Unit

Push/ Pull Cable

(Note: There may be a case

that the all power cannot be

taken off on some engine

models.Please consult with

Yanmar.)

Front PTO All power can be taken

out.

Electric knob or dial

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Control Room

Wheel House

CAN BUS

Printer

Printer

Merits of Electric Gaugeboard on Engine

Control and Monitoring System

(Option)

Engine Room

SCB

SCB:Smart Connecting Box

SCB

Tanks, Machinery, etc.

Port Main Engine

SCB SCB

No.2 Generator Engine

Starboard Main Engine

No.1 Generator Engine

Port Propeller Starboard Propeller

Ship Owner

Dockyard

Fire Prevention (no pressure gauge pipe)

Fewer parts (no pressure gauge pipe)

Labor saving (centralized monitoring of temp. gauges)

Integrated control of engine data (all data unified under electric system)

Less wiring (between main engine connection box and local boxes)Less fitting (onboard fittings replaced by engine mounted. Bar temp.

gauges mounted on engine.)

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Increases in combustion work,suction and exhaust work

E OLOGYECOLOGY

andower fuel

consumption

lower NOx

emissions

lower fuelconsumption

lower NOxemissions

Comparison in engine performance

asconvertedinto213%

the ASSIGN combustion system

Available combustion

chamber space

Distributed fuel injection

Geometric nexus

Staggered layout nozzle

Air flow motion

Promotion of mixing airand fuel

Suction swirl

Analysis result of swirl port

3-dimensionalCAD data

Flow calculationgrid

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8N330

6N330

8EY26

6EY26

8N21A

6N21A

6N18A

6RY17

6NY16

6AY

Continuous rated output

Engine model Output range

combustionsystem

combustionsystem

combustion

system

Power Range

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6AAY6AY

combustion sysytem

Dimensions(Unit:mm)

485610kWOutput

Specifications

YXH-240-2

Offset

1.95,2.27

605

YX-181

Offset

2.08,2.55,3.03

530

Engine model

Number of cylinders

Cylinder bore stroke

Rated output

Rated engine speedEngine dry mass

6AYM-ETE

6

155 180

610829at flywheel end

19002365

6AYM-STE

6

155 180

485659at flywheel end

19002365

kWPS

min1rpm

Reverse-reduction gear

Axis layout

Reduction gear ratioahead

Reverse-reduction gear mass

Engine Total mass(with Marine gear) Marine gear

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245

265

L6

C

1125

355.5 930 (Engine)

B4 (Marine gear)L7

L5

B3

B1 B2

B

H3

1050L2

232

H2

510

H1

L4

L1L3

L

(Minimumh

eightforremovingpiston)

6NYY166NY16331559kWOutput

Dimensions(Unit:mm)

YX-351

Offset

2.25, 2.67, 3.11, 3.51

1050

YX-240-1

Offset

2.08, 2.55, 3.03, 3.50

670

Specifications

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

kWPS

min1rpm

Reverse-reduction gear

Axis layout

Reduction gear ratioaheadReverse-reduction gear mass

Notes In case the classification rule required, only YX-351 is available.

2880 2880

6NY16-UT

6

160 200

3314501350

6NY16-ST

6

160 200

4055501350

6NY16A-UT

6

160 200

4786501600

6NY16A-ST

6

160 200

5597601600

Engine

Marine gear

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Specifications

Dimensions(Unit:mm)

6RRY1176RY17

combustion sysytem

625736kWOutput

Offset

2.56, 3.03, 3.48

609

2.56, 3.03, 3.48 3.93, 4.46609 852

YXH-240-1 YXH-240-1 MGN90L

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

kWPS

min1rpm

Reverse-reduction gear

Axis layout

Reduction gear ratioaheadReverse-reduction gear mass

6RY17P-GV

6

165 219

73610001500

3960

6RY17P-EV

6

165 219

6258501500

3940

Engine

Marine gear

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6N18A

Specifications

Dimensions(Unit:mm)

6N18A

combustion sysytem

441736kWOutput

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

6N18A-DV

6

180 280

441600900

6200

6N18A-UV

6

180 280

588800900

6250

kWPS

min1rpm

Standardreverse-reduction gear

Reduction gear ratiosahead

Reverse-reductiongear mass

Total mass withreverse-reduction gear

Offsetco-axial

Offset

co-axial

Offset

co-axial

Elastic coupling

RATO 1611

RATO 1911

RATO 1911

Engine

Marine gear

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Specifications

Dimensions(Unit:mm)

6N21A 8N21A

6N21A/8N21A

combustion sysytem

6621324kWOutput

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

Offset

co-axialOffset

co-axial

Offset

co-axial

Offset

co-axial

Standard

reverse-reduction gearReduction gear ratios

ahead

Reverse-reductiongear mass

Total mass withreverse-reduction gear

kWPS

min1rpm

6N21A-DV

6

210 290

662900800

8000

6N21A-SV

6

210 290

8831200850

8000

6N21A-EV

6

210 290

9561300850

8000

8N21A-UN

8

210 29010301400

800

10500

8N21A-SN

8

210 290

11771600850

10500

8N21A-EN

8

210 290

13241800900

10500

6N21A-UV

6

210 290

7361000800

8000

Elastic couplingEngine

RATO 2111RATO 2111

RATO 2111

RATO 2111

RATO 2311

RATO 2311

RATO 2511

RATO 2511

Marine gear

(Minimumh

eightforremovingpiston)

340

940(Engine)

W(Marine gear)

B2

B3

H2

L4

550.5

261

601

L5L68N21A6N21A

L3 B1

B

L8L0

L7

H1

E

1802

L2

LG

C

LC

L1

L

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6EY26

Specifications

Dimensions(Unit:mm)

6EY26

6

260 385

16202203750

18500

2.23, 2.58, 2.79, 3.03

2.23, 2.58, 2.79, 3.03

2.23, 2.58, 2.79, 3.03

2.23, 2.58, 2.79, 3.03

combustion sysytem

14712000 19202610

YXH-2000

for F.P.P.1471kW

YXH-2000M

for C.P.P.1471kWReduction gear Reduction gear

for F.P.P.for C.P.P.

Reduction gear Reduction gear

YXH-2000CYXH-2000MC

47003900

50004300

YXH-2500YXH-2500M

YXH-2500CYXH-2500MC

47503950

5100

4400

14711920kWOutput

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated outputRated engine speed

Engine dry mass

kWPS

min1rpm

Propeller type

Marine gear type

Standard marine gear

Reduction gear ratios

ahead

Marine gear mass

Offset

co-axial

Offset

co-axial

Offset

co-axial

6EY26

Elastic couplingEngine Marine gear

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combustion sysytem

Specifications

Dimensions(Unit:mm)

8EY26

20602560kWOutput

Elastic couplingEngine Marine gear

8EY26

for C.P.P.

Reduction gear

YX-3500M

YX-3500MC

2.55, 2.80, 3.09, 3.31

2.31, 2.54, 2.80, 3.00

8700*

8400*

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated outputRated engine speed

Engine dry mass

kWPS

min1rpm

Propeller type

Marine gear type

Standard marine gear

Reduction gear ratios

ahead

Marine gear mass

Offset

co-axial

Offset

co-axial

Offset

co-axial

8EY26

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Dimensions(Unit:mm)

Specifications

6N330

8N330

6N3308N330

22073310kWOutput

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

8N330-UN

8

330 440

29424000620

43000

8N330-SN

8

330 440

31634300620

43000

8N330-EN

8

330 440

33104500620

43000

kWPS

min1rpm

Propeller type

Marine gear type

Standard marine gear

Reduction gear ratios

ahead

Marine gear mass

Offset

co-axial

Offset

co-axial

Offset

co-axial

for C.P.P.

Reduction gear

MGR8044V96

2.53,3.03,3.55,4.00,4.46

14200*

for C.P.P.

Reduction gear

YX-3500M

YX-3500MC

2.55, 2.80, 3.09, 3.31

2.31, 2.54, 2.80, 3.00

8700*

9500*

for F.P.P.

Reverse-reduction gear

YX-3500

YX-3500C

2.55, 2.80, 3.09, 3.31

2.31, 2.54, 2.80, 3.00

10000

10000

for F.P.P.

Reverse-reduction gear

MGN8044V96

2.53,3.03,3.55,4.00,4.46

13700

Elastic couplingEngine RATO 3311

RATO 3311

RATO 3311RATO 3311

RATO 3411

RATO 3411

RATO 3411

RATO 3411

RATO 3411

RATO 3411

Marine gear

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8N280M8N280M

Dimensions(Unit:mm)

Specifications

combustion sysytem

19122354kWOutput

Engine model

Number of cylinders

Cylinder bore stroke

Continuous rated output

Rated engine speed

Engine dry mass

8N280M-UV

8

280 380

19122600720

26000

8N280M-SV

8

280 380

22073000720

26000

for C.P.P.

Reduction gear

YX-3500M

YX-3500MC

2.55, 2.80, 3.09, 3.31

2.31, 2.54, 2.80, 3.00

8700*

9500*

for F.P.P.

Reverse-reduction gear

YX-3500

YX-3500C

2.55, 2.80, 3.09, 3.31

2.31, 2.54, 2.80, 3.00

10000

10000

8N280M-EV

8

280 380

23543200720

26000

kWPS

min1rpm

Propeller type

Marine gear type

Standard marine gear

Reduction gear ratios

ahead

Marine gear mass

Offset

co-axial

Offset

co-axial

Offset

co-axial

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NOx(Nitrogen Oxide)Regulation by

IMO(International Maritime Organization)

E OLOGYECOLOGY

Amagasaki Plant

Veritas), BV(BureauVeritas) and RINA(Re-distro Italiano Navale).

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Large Product Marketing Dept.1-1, 2-chome, Yaesu, Chuo-ku, Tokyo 104-8486, JapanPhone: +81-3(3275)-4909Fax: +81-3(3275)-4969http://www.yanmar.co.jp