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2005/04/10 < 1>© MAN B&W Diesel AG

MAN B&W DIESEL

2005/04/10 < 2>© MAN B&W Diesel AG

PRODUCT

2006/03/07 < 3>

MAN B&W Diesel

© MAN B&W Diesel AG

The Large-bore Medium-speed Engine Family

Technically convincing and successful around the globe in the power range of between 3,000 and 21,600 kW

Products

2006/03/07 < 4>

MAN B&W Diesel


Technical Data, Marine Engines

Engine type 32/40 40/54 40/50 48/60B 58/64

Cylinder bore [mm] 320 400 400 480 580

Piston stroke [mm] 400 540 500 600 640

No. ofCylinders

6, 7, 8, 9, 1012,14,16,18,20 6, 7, 8, 9 12, 14, 16,

18, 206, 7, 8, 9

12, 14, 16, 18 6, 7, 8, 9

Cylinder output [kW] 500 720/700 750 1,200 1,400/1,310

Speed [rpm] 750/720 550/514/500 600 514/500 428/400

Mean piston speed[rpm] 10.0/9.6 9.9/9.25/9.0 10.0 10.3/10.0 9.1/8.5

Mean effect. pressure [bar] 24.9/25.9 23.1/24.8 23.9 25.8/26.5 23.2/23.2

Fuel cons.85% MCR [g/kWh]

L: 179V: 179 181 176 175

173 173

Products

2006/03/07 < 5>

MAN B&W Diesel


9L58/64 Four-stroke Engine

Output: 12,600 kW at 428 rpm

L58/64 Product

2005/04/10 < 6>© MAN B&W Diesel AG

DESIGN

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MAN B&W Diesel


L58/64 Cross Section

L58/64 Design

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MAN B&W Diesel

© MAN B&W Diesel AG 2004/10/21 < 2 >

MAN B&W Diesel


L58/64 Optimised Turbocharger

The new TCA55/TCA66 design, leading to:

efficiency

Higher overall

Excellent part load

behaviour

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MAN B&W Diesel


L58/64 Turbocharger on Coupling Side

2006/03/07 < 10>

MAN B&W Diesel


L58/64 Turbocharger on CouplingSide with New Rocker Arm Gear

2006/03/07 < 11>

MAN B&W Diesel


L58/64 New CombustionChamber Geometry

Unhindered atomisation of the injection jet, leading to:

improved designL58/64 L58/64

Improved fuel air mixture

Less combustion residues (reduced soot formation)

Reduced fuel consumption

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MAN B&W Diesel


L58/64 Engine Frame

Features

Easy to maintain

Great stiffness, well-suited for crankshaftand support

L58/64 Design

2006/03/07 < 13>

MAN B&W Diesel


L58/64 Machining the Engine Frame

L58/64 Design

2006/03/07 < 14>

MAN B&W Diesel


L58/64 Cylinder Liner

Features

Optimised cooling

Low deformation design

Fire ring and stepped piston prevent bore polishing

L58/64 Design

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MAN B&W Diesel


Cylinder Liner

Comparison of new cylinder liner with fire ring and standard cylinder liner

with fire ring standard version

Design

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MAN B&W Diesel


Cylinder Liner

Installation of a fire ring

Precludes, in connection with the stepped piston, the so-called bore polishing

L58/64 Design

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MAN B&W Diesel


L58/64 Fuel Injection Valve

Features

For optimum injection

Long TBOs

L58/64 Design

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MAN B&W Diesel


L58/64 Fuel Injection Pump

Features

Low wear rate

For optimum injection pressures

Possibility to adjust injection timing

L58/64 Design

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MAN B&W Diesel


Adjustment of Injection Timing

Easy adaption to different fuel grades

Optimal combustion

Optimisation of fuel consumption

L58/64 Design

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MAN B&W Diesel


L58/64 Piston

Features

Long service life of piston rings

Constant low lube oil consumption

Stepped piston and fire ring prevent bore polishing

L58/64 Design

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MAN B&W Diesel


L58/64 Piston

L58/64 Design

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MAN B&W Diesel


L58/64 Connecting Rod

Features

Extremely low piston removal height

Crankpin bearing remains closed when piston is removed

L58/64 Design

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MAN B&W Diesel


Resilient Mounting

3060

3360

Inclined resilient mounting for increased comfort requirement

Resilient conical mounting for standard comfort requirement

L58/64 Design

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MAN B&W Diesel


L58/64 Resilient Mounting

Structure borne sound velocity in vertical direction on 8L58/64

L58/64 Design

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MAN B&W Diesel


Engines with Direct Resilient Mounting

L+V32/40 235 engines

L40/54 61 engines

L+V48/60 169 engines

L58/64 76 engines

Total 540 engines

Status: July 2004

Design

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MAN B&W Diesel


Ease of Maintenance

Time for removal resp. installation of various components

L40/54 L+V48/60B L58/64

Man Time (h) Man Time (h) Man Time (h)

Fuel injection valve 1 0.5 1 0.5 1 0.5

Fuel injection pump 1 2.0 1 3.0 1 2.0

Cylinder head 2 2.0 2 2.0 2 2.0

Piston 2 1.5 2 2.0 2 1.5

Cylinder liner 2 1.0 2 1.5 2 1.0

Main bearing 2 4.0 2 4.0 2 4.0

Big-end bearing 2 2.0 2 2.0 2 2.0

The values stated are for guidance only Status 11/05

Maintenance

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MAN B&W Diesel


L58/64 Ease of Maintenance

Redesigned rocker arm housing

One part rocker arm casing and charge air pipe section made of cast iron leads to reduced maintenance work

2006/03/07 < 29>

MAN B&W Diesel



New concept of rocker arm gear

Reduced maintenancework for rocker arms and rocker casing

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MAN B&W Diesel



New concept of rocker arm gear

Rocker arm axial bearingreplaced by two sphericalbearings

Reduced number ofmoving parts

Quick and easy dismantlingand reassembly

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MAN B&W Diesel



Quick-acting seal on the exhaust gas piping

L58/64 Maintenance

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MAN B&W Diesel



Few hydraulic tools for all essential screw connections

L58/64 Maintenance

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MAN B&W Diesel



Few hydraulic tools for all essential screw connections

L58/64 Maintenance

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MAN B&W Diesel



Hydraulic tools for crankshaft bearing

L58/64 Maintenance

2006/03/07 < 35>

MAN B&W Diesel



Hydraulic tools for big-end bearing

L58/64 Maintenance

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