m20c – design improvement m20c – design features...6 m 20 c 1020 1140 8 m 20 c 1360 1520 9 m 20...

M 20 CLong-Stroke Diesel Engines for Maximum Efficiency and High Reliability 6 • 8 • 9

M_20_C_2008.qxd:Layout 1 15.05.2008 8:58 Uhr Seite 1

M 20 C – The Compact Long-Stroke Diesel Engine with Heavy Fuel Capability

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Turbocharger with improved efficiency

Exhaust Pipe Design for greater simplicity

Exhaust System Cladding small, compact and easy to maintain

Dual Circuit Fresh Water for easier installation with higher efficiencyCooling System thanks to higher cooling water temperature up to 90 °C

The M 20 C, the updated version of the highly popular M 20, features a range of benefits for operators and shipyards.

Its intelligent simplicity means the high functional integration offewer components. Fewer components mean greater reliabilityand easier maintenance.

Overall, this leads to outstandingly low operating costs and rapidreturns on investment. Reliability and ease of maintenance areconvincing arguments in favour of the engines of this series.

Launched in 1992, the M 20 series set a new milestone in MaK modern long-stroke engine technology.

Developed and designed in response to the special requirementsof marine applications, the most striking features of this engineare its high reliability and economy. These features help to explain the continued high market demand for the M 20 C as anengine for both marine propulsion and marine generating sets.

The long-stroke design principle is the backbone of an excellentcombustion process with low fuel and lube oil consumption, aswell low NOx emission. The M 20 C engine is SOLAS compliant.

M 20 C – Marine Propulsion

M 20 C – On-Board Power

MaK Propulsion Package


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■ Charging system with a high air excess

■ Camshaft.Easy maintenance

■ Engine control stand

■ Cylinder head. Easy maintenance thanks to plug-in connections

M 20 C – Design Improvement M 20 C – Design Features

Latest Modifications = New Customer Benefits ■ Turbocharging System

with improved efficiency■ Exhaust Pipe Design

for greater simplicitiy■ Exhaust System Cladding

small, compact and easy to maintain■ Dual Circuit Fresh Water Cooling System

for easier installation with higher efficiency thanks to higher cooling water temperature up to 90 °C

Engine with high safety levelThe M 20 C is an engine with a high safety level. This applies not only to thosespecial internal design features whichguarantee long component life and highavailability but also to safety in the areaaround the engine. As a result, SOLASregulations are strictly and consistentlyobserved. Explosion protection cover for the cylinder/crankcase housing and cladding of the complete fuel and exhaust gas system in stainless steel arepart of an overall SOLAS safety concept.

HFO/MDO – Long TBO and lifetimeLong maintenance intervals and the life of components are the basis for low operating costs.

Charging system with a high air excess

■ Rapid engine response ■ Low temperature levels on

components surrounding the combustion chamber

■ Long turbocharger bearing life ■ Turbocharger casing without

water cooling. Safe and reliable. No corrosion.

Engine control stand

■ Reliable engine operation due to direct mounting of the control stand on the engine

■ All control functions arranged directly on the engine

Cooling water ring

■ Intensive cooling of the cylinder liner where cooling is needed

■ Engine block free from coolant■ Coolant only circulates around

the upper part of the cylinder liner and the cooling water ring

Cylinder head

■ Inherent stability due to nodular cast iron, double-bottomconstruction

■ Intensive cooling of the combus-tion chamber and exhaust valve seats

■ Increased reliability due to integrated media ducts

■ Easy maintenance thanks to plug-in connections and four hydraulically tightened studs

■ Resilient mounting system in connection with deep oil pan available. Also available for HFO operation.

■ Cylinder block. Dimensional accuracy due to an foundry improvement

*MDO Operation

TBO Lifetimex 1000 h x 1000 h

Piston crown 30 90

Piston skirt - 50

Piston ring - 30

Cylinder liner - 60 / 90*

Cylinder head 15 -

Inlet valve 15 30

Exhaust valve 15 30

Nozzle element - 8

Pump element - 15 / 20*

Main bearing - 30

Big-end bearing - 30

The above mentioned data are not binding. They onlyserve as standard values. These standard values can be attained if the MaK operating and maintenance specifications are strictly observed and only MaK spareparts are used. Please consider as well the negative effect of bad fuel qualities.


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M 20 C – Complete Diesel Generating Sets on a Common Base Frame

The main features of the diesel generatingset are ease of installation, reliable opera-tion, ease of maintenance and easy com-ponent accessibility. Its base is the rigidframe which forms a foundation for boththe engine and the generating set and in-cludes an integral, large-capacity oil sumpand universal fuel supply equipment cov-ering both HFO and MDO operation.

Generation of electricityIn addition to its use as a marine propul-sion unit, the M 20 C has a wide range ofapplication providing power for the con-tinuous generation of electricity applica-tions where a high level of reliability isalways important. The power range of theM 20 C engine series as a generator unit isfrom 1,210 to 2,030 kVA.

M 20 C – Design Features

Camshaft

■ Easy maintenance thanks to simple design

■ Integrated non-adjustable cams for injection and valve timing

■ Low wear thanks to cam follower lever arm arrangement

Exhaust pipe

■ Single pipe exhaust line with modular construction

■ Flow optimized pipe design for quick load acceptance

■ Simplified maintenance due to clamped connection of individual modules

Engine block

■ No cooling water in the engine block

■ Firm base for main and camshaft bearings due to inherent rigidity

■ Easy access for inspection and maintenance

■ Safe mounting of engine on foundation

■ Maintenance-friendly

Cylinder liner with anti-wear ring

■ Long component life with a piston removal interval of 30,000 h under heavy fuel operation

■ Extended lubricating oil change intervals

■ Low overall operating costs

Piston

■ Robust crown manufactured from forged steel with only two ring grooves

■ First ring groove features with hardened surfaces

■ Long aluminium skirt for favourable guidance

■ Long piston ring service life■ Low cylinder liner wear

Resilient mounting systemMajor components:■ Conical rubber elements isolate

dynamic engine forces and structure-borne noise. Horizontal, lateral and vertical stoppers are combined to limit engine movement

■ Dynamically balanced, highly flexible coupling

■ Flexible connections for all media

■ Specially designed exhaust gas bellows


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M 20 C – Technical Data

P R O P U L S I O N G E N E R AT I N G S E T S

Number of cylinders In-line 6, 8, 9 6, 8, 9Bore mm 200 200Stroke mm 300 300Cylinder rating kW 170 190Speed rpm 900 1000Mean piston speed m/s 9.0 10.0BMEP bar 24.1 24.2Engine rating kW kW

6 M 20 C 1020 11408 M 20 C 1360 15209 M 20 C 1530 1710

60Hz 50HzGenerator rating* kWe kVA kWe kVA

6 M 20 C 0970 1210 1080 13558 M 20 C 1290 1615 1445 18059 M 20 C 1450 1820 1625 2030

Specific fuel consumption** g/kWh g/kWhat 100%/85% output 6, 8 ,9 M 20 C 186/186 190/189

Specific lubricating oil consumption 0.6 g/kWh, ± 0.3 g/kWh

The engine fulfills MARPOL 73 /78 Annex VI regulations.

* Generator efficiency: 0.95, cos ϕ: 0.8** LCV = 42,700 kJ/kg, without engine-driven pumps, tolerance 5%

Complete engineThe engine is marketed with a standardized range of installed pumps and filters.Inter faces for fuel, lubricating oil and cooling water systems are located at the opposite end to the crankshaft coupling for ease of connection.

Propulsion engine (Dimensions in mm)

Engine A B C D E F G H Weight with flywheel (tons)

6 M 20 C 941 4049 988 520 1558 630 330 2099 10.78 M 20 C 941 4846 1123 520 1693 630 330 2235 14.0 9 M 20 C 941 6176 1123 520 1693 630 330 2235 15.0

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Engine A B C D E F tons 6 M 20 C 6073 4900 2165 1054 1680 1170 11.08 M 20 C 6798 5548 2335 1054 1816 1170 14.09 M 20 C 7128 5875 2335 1054 1816 1170 15.0

Generating set (Dimensions in mm)

A: Wet sump (standard) F: Dry sump (special request)

Reliable energy supplyThe complete diesel generating set is notable for its ease of installation, reliableoperation, ease of maintenance and goodcomponent accessibility. The basis isformed by the rigid base frame as foun-dation of the engine and alternator with integrated oil sump, large oil volume anduniversal equipment for both HFO andMDO operation.

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The long-stroke concept for ecological operationEnvironmental protection is also becomingincreasingly important for seagoing ship-ping. Caterpillar Motoren recognized thistrend in good time and, with the design anddevelopment of the modern long-stroke engine concept, created the conditions for engine operation at reduced emissionlevels. The NOx emissions of the M 20 C engine lies well below the International Maritime Organisation`s limiting curve.

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M 20 C – Clean Solution

Complete propulsion systemsThe supply of complete propulsionsystems is a market requirement which is becoming more and more important. We have wide experience gathered in thedesign and installation of many success-ful propulsion plants and from our closecooperation with competent partners.

We offer■ System responsibility and supply

from a single source■ Accurately matched interfaces■ Coordinated delivery data control

A complete propulsion system usuallyconsists of:■ MaK main propulsion engine with

flexible coupling■ Reduction gearbox with or without

installed clutch and gearbox PTO*

with shaft generator■ Propeller and shaft installation■ Matched remote control and

monitoring equipment*Power Take Off

M 20 C – MaK Propulsion Package

1200min-1

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M 20 C

g /kWh

Engine Speed

MARPOL 73/78Annex VI

DNV Clean Design▲●▼

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The long-stroke concept for engine operation at reduced emission levelsThe following features characterise theconcept which ensures, in addition tosmooth running, maximum operational reliability and also permits operation onheavy fuel oil up to 700 cSt /50°C.■ Long piston stroke■ Large stroke/bore ratio■ Intensive injection■ Shaped injection curve■ Optimised control times■ High ignition pressure

For MDO operation the engine is also avail-able with less NOx emission: Det NorskeVeritas DNV “Clean Design” and FederalMinistry of Environment “Blue Angel”.


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Cat Financial – Our World-Class Financial Support Integrated Solutions – Customer Support Portfolio

Global Resource from One SourceWhen you select Cat Marine Power for your vessel, look to Cat Financial for world-class financial support. With marine lending offices inEurope, Asia and the US supporting Caterpillar’sworldwide marine distribution network, Cat Financial is anchored in your homeport. We alsohave over 20 years of marine lending experience,so we understand your unique commercial marine business needs. Whether you’re in theoffshore support, cargo, ship assist, towing, fish-ing or passenger vessel industry, you can counton Cat Financial for the same high standard youexpect from Caterpillar.

www.CAT.com/CatMarineFinanceVisit our web-site or see your local Cat dealer to learn how our marine financing plans and options can help your business succeed.

Marine Financing GuidelinesPower: Cat and MaK.Financial Products: Construction, term

and repower financing.Repayment: Loan terms up to

10 years, with longer amortizations available.

Financed Amount: Up to 80% of yourvessel cost.

Rates: Fixed or variable.Currency: US Dollars, Euros and

other widely traded currencies.

Global Dealer Network Maintenance

Training

Commissioning

RemanufacturedParts

DICAREDiagnostic Software

Repairs

Overhauls

Providing integrated solutions for your power system meansmuch more than just supplying your engines. Beyond completeauxiliary and propulsion power systems, we offer a broad port-folio of customer support solutions and financing options. Ourglobal dealer network takes care of you wherever you are –worldwide. Localized dealers offer on-site technical expertisethrough marine specialists and an extensive inventory of all thespare parts you might need.

To find your nearest dealer, simply go to:www.cat-marine.com or www.mak-global.comOcean-Going Vessels

Pleasure Craft

Commercial Vessels

Customer Support Agreements

(CSAs)

Engine Upgrades

Genuine Spare Parts


● M 20 C6, 8, 9 cylinder1,020–1,710 kW

● 3600/C2806, 8, 12, 16 cylinder1,730–5,650 kW

● 35008, 12, 16 cylinder526– 2,525 kW

● M 25 C6, 8, 9 cylinder1,800 –3,000 kW

● C186 cylinder339– 747 kW

● 34006, 8, 12 cylinder187– 1,044 kW


● 30566 cylinder93 –153 kW

● C76 cylinder187 – 339 kW

● C3212 cylinder492– 1,342 kW


● VM 43 C12, 16 cylinder10,800 –16,000 kW

● M 32 C6, 8, 9 cylinder2,880 – 4,500 kW

● VM 32 C12, 16 cylinder5,760 – 8,000 kW

● M 43 C6, 7, 8, 9 cylinder5,400 – 9,000 kW


■ Medium-Speed Engines

■ High-Speed Engines

P r o p u l s i o n E n g i n e s

● 3600 /C2806, 8, 12, 16 cylinder1,650–5,200 kWe2,063–6,500 kVA

● 35008, 12, 16 cylinder590–1,825 kWe738–2,281 kVA

● C18275– 550 kWe344– 688 kVA

● C9142–250 kWe178– 313 kVA

● C4.436– 99 kWe45– 123 kVA

● C1.510–14.5 kWe10–18 kVA

● 34006, 8, 12 cylinder200–590 kWe250–738 kVA

● 305684–99 kWe105–124 kVA

● C2.216– 30 kWe16– 37.5 kVA

● VM 32 C12, 16 cylinder5,530–7,680 kWe 6,912–9,600 kVA

● M 25 C6, 8, 9 cylinder1,710–2,850 kWe2,140–3,560 kVA

● M 20 C6, 8, 9 cylinder970–1,625 kWe1,210–2,030 kVA

● M 32 C6, 8, 9 cylinder2,765–4,320 kWe 3,456–5,400 kVA

G E N S E T S

M A I N P R O P U L S I O N

O n b o a r d P o w e r S u p p l y

One Strong Line of World-Class Diesel Engines Perfect Solutions for Main Propulsion and On-Board Power Supply

Caterpillar Marine Power SystemsSales and Service Organization

Caterpillar Marine Power SystemsProduction Facilities

which manage all sales and product sup-port activities. They have direct responsi-bility for achieving the ambitious growthtargets set for the Cat and MaK brandsand for providing our customers anddealers with complete marine solutions.

Caterpillar ’s global dealer network pro -vid es a key competitive edge – customersdeal with people they know and trust.

Cat dealers strive to form a strong work -ing relationship with their customers, offering comprehensive and competentadvice from project support to repairwork.

The Program: Quality is our MottoFor more than 80 years we have devel-oped, built, supplied and serviced dieselengines – worldwide. Today CaterpillarMarine with its brands Cat and MaK offer high-speed and medium-speed engines with power ratings from 11 kW to 16,000 kW. Many different engine families are available to meet your specific application needs.

Cat and MaK diesel engines are distin-guished by high reliability, extremely lowoperational costs, simple installation andmaintenance and compliance with IMOenvironmental regulations.

Some of the most advanced manufactur-ing concepts are used at Caterpillar loca-tions throughout the world to produceengines in which reliability, economy andperformance are second-to-none.

From the production of core componentsto the assembly of complete engines,quality is always the top priority.

Comprehensive, recognized analysis systems, test procedures and measuringmethods ensure that quality requirementsare met throughout all the individual manufacturing phases. All of our produc-tion facilities are certified under 1:2000ISO 9001 EN, the international benchmarkthat is helping to set new quality stan-dards worldwide.

In addition to product quality, our cus-tomers expect comprehensive servicewhich in cludes the supply of spare partsthroughout the life of the engine.

Caterpillar Logistics Services, Inc., located in Morton, Illinois, is the largestparts distribution facility within the CatLogistics network and is also the head-quarters for all the worldwide distributioncentres. Morton utilises sophisticatedmaterial handling, storage and retrievalsystems to support Caterpillar’s customerservice goals.

Caterpillar has combined the sales andservice activities and responsibility oftheir Cat and MaK brand marine enginebusiness into Caterpillar Marine Power Systems with headquarters in Hamburg/Germany.

In setting-up this worldwide structure, we have concentrated on integrating theCat and MaK brand groups into a single,united marine team, which utilises the particular expertise of each group.

Commercial marine engine business is split into three geographic regions, – Europe, Africa, Middle East– Americas– Asia-Pacific,

The application of engines in main andauxiliary marine power systems variesgreatly and extends from high-speedboats and yachts, through tugs, trawlersand offshore vessels to freighters, ferriesand cruise liners.

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Subject to change without notice.Leaflet No. 226 · 04.08 · e · L+S · VM3

© 2008 Caterpillar All Rights Reserved. CAT, CATERPILLAR, their respective logos,„Caterpillar Yellow“ and the POWER EDGE trade dress, as well as corporate identityused herein, are trademarks of Caterpillar and may not be used without permission

Europe, Africa, Middle East

Caterpillar MarinePower SystemsNeumühlen 922763 Hamburg/Germany

Phone: +49 40 2380-3000Telefax: +49 40 2380-3535

Caterpillar Marine Asia Pacific Pte Ltd14 Tractor RoadSingapore 627973/SingaporePhone: +65 68287-600Telefax: +65 68287-624

Americas

MaK Americas Inc.

3450 Executive WayMiramar Park of CommerceMiramar, FL. 33025/USAPhone: +1 954 447 71 00Telefax: +1 954 447 71 15

Caterpillar Marine Trading(Shanghai) Co., Ltd.25/F, Caterpillar Marine Center1319, Yan’an West Road200050 Shanghai/P. R.ChinaPhone: +86 21 6226 2200Telefax: +86 21 6226 4500

Asia PacificHeadquarters

Caterpillar MarinePower SystemsNeumühlen 922763 Hamburg/Germany

Phone: +49 40 2380-3000Telefax: +49 40 2380-3535

For more information please visit our website:www.cat-marine.com or www.mak-global.com

Caterpillar Marine Power Systems


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