MAN B&W
4.04
Page 1 of 3
MAN Diesel
198 43 168.8
MAN B&W 70 – 26 engines
PTO type: BW II/GCR
Power Take Off/Gear Constant Ratio
The PTO system type BW II/GCR illustrated in Fig.
4.01.01 alternative 5 can generate electrical power
on board ships equipped with a controllable pitch
propeller, running at constant speed.
The PTO unit is mounted on the tank top at the
fore end of the engine see Fig. 4.04.01. The PTO
generator is activated at sea, taking over the elec-
trical power production on board when the main
engine speed has stabilised at a level correspond-
ing to the generator frequency required on board.
The installation length in front of the engine, and
thus the engine room length requirement, natu-
rally exceeds the length of the engine aft end
mounted shaft generator arrangements. However,
there is some scope for limiting the space require-
ment, depending on the configuration chosen.
PTO type: BW IV/GCR
Power Take Off/Gear Constant Ratio
The shaft generator system, type PTO BW IV/
GCR, installed in the shaft line (Fig. 4.01.01 al-
ternative 6) can generate power on board ships
equipped with a controllable pitch propeller run-
ning at constant speed.
The PTO system can be delivered as a tunnel gear
with hollow flexible coupling or, alternatively, as
a generator stepup gear with thrust bearing and
flexible coupling integrated in the shaft line.
The main engine needs no special preparation for
mounting these types of PTO systems as they are
connected to the intermediate shaft.
The PTO system installed in the shaft line can also
be installed on ships equipped with a fixed pitch
propeller or controllable pitch propeller running in
Fig. 4.04.01: Generic outline of Power Take Off (PTO) BW II/GCR
178 18 225.0
Support bearing, if required
Elastic coupling
Step-up gear
Generator
Summary of Contents for B&W S50ME-B9.3-TII
Page 4: ......
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Page 11: ...MAN B W MAN Diesel Engine Design 1 ...
Page 12: ......
Page 27: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
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Page 53: ...MAN B W MAN Diesel Turbocharger Selection Exhaust Gas By pass 3 ...
Page 54: ......
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Page 59: ...MAN B W MAN Diesel Electricity Production 4 ...
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Page 93: ...MAN B W MAN Diesel Installation Aspects 5 ...
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Page 133: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
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Page 155: ...MAN B W MAN Diesel Fuel 7 ...
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Page 171: ...MAN B W MAN Diesel Lubricating Oil 8 ...
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Page 189: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
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Page 199: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
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Page 203: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
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Page 209: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
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Page 221: ...MAN B W MAN Diesel Starting and Control Air 13 ...
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Page 227: ...MAN B W MAN Diesel Scavenge Air 14 ...
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Page 239: ...MAN B W MAN Diesel Exhaust Gas 15 ...
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Page 255: ...MAN B W MAN Diesel Engine Control System 16 ...
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Page 265: ...MAN B W MAN Diesel Vibration Aspects 17 ...
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Page 281: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
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Page 307: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
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Page 323: ...MAN B W MAN Diesel Project Support and Documentation 20 ...
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Page 333: ...MAN B W MAN Diesel Appendix A ...
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