MAN B&W
4.01
Page of 6
MAN Diesel
198 43 000.2
MAN B&W K108ME-C6, K98MC/MC-C/ME/ME-C6/7,
S90MC-C/ME-C7/8, K90ME/ME-C9, K90MC-C/ME-C6, S80MC6,
S80MC-C7/8, S80ME-C7/8/9, K80ME-C9, K80MC-C/ME-C6,
S70MCC/ME-C/ME-GI7/8, L70MCC/ME-C7/8, S70MC6,
S65ME-C/ME-GI8, S60MC6, S60MC-C/ME-C/ME-GI7/8,
L60MC-C/ME-C7/8, S50MC-C/ME-C7/8, S50MC6, S50ME-B8/9
PTO/RCF
Side mounted generator, BWIII/RCF
(Fig. .01.01, Alternative 3)
The PTO/RCF generator systems have been de-
veloped in close cooperation with the German
gear manufacturer RENK. A complete package
solution is offered, comprising a flexible coupling,
a stepup gear, an epicyclic, variableratio gear
with builtin clutch, hydraulic pump and motor,
and a standard generator, see Fig. .01.03.
For marine engines with controllable pitch pro-
pellers running at constant engine speed, the
hydraulic system can be dispensed with, i.e. a
PTO/GCR design is normally used.
Fig. .01.03 shows the principles of the PTO/RCF
arrangement. As can be seen, a stepup gear box
(called crankshaft gear) with three gear wheels
is bolted directly to the frame box of the main
engine. The bearings of the three gear wheels
are mounted in the gear box so that the weight of
the wheels is not carried by the crankshaft. In the
frame box, between the crankcase and the gear
drive, space is available for tuning wheel, counter-
weights, axial vibration damper, etc.
The first gear wheel is connected to the crank-
shaft via a special flexible coupling made in one
piece with a tooth coupling driving the crankshaft
gear, thus isolating it against torsional and axial
vibrations.
By means of a simple arrangement, the shaft in
the crankshaft gear carrying the first gear wheel
and the female part of the toothed coupling can
be moved forward, thus disconnecting the two
parts of the toothed coupling.
/PERATINGæPANEL
INæSWITCHBOARD
2#&#ONTROLLER
(YDROSTATICæPUMP
-ULTIDISCæCLUTCH
4OOTHEDæCOUPLING
3ERVOæVALVE
(YDROSTATICæMOTOR
4OOTHED
COUPLING
'ENERATOR
!NNULUSæRING
3UNæWHEEL
0LANETARYæGEARæWHEEL
#RANKSHAFT
%LASTICæDAMPINGæCOUPLING
4OOTHEDæCOUPLING
#RANKSHAFTæGEAR
Fig. 4.01.03: Power take off with RENK constant frequency gear: BW III/RCF, option: 4 85 253
178 23 222.1
Summary of Contents for B&W S80ME-C7
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Page 15: ...MAN B W MAN Diesel Engine Design 1 ...
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Page 31: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
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Page 63: ...MAN B W MAN Diesel Turbocharger Choice Exhaust Gas By pass 3 ...
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Page 71: ...MAN B W MAN Diesel Electricity Production 4 ...
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Page 86: ...MAN B W Page of 1 MAN Diesel This section is not applicable PTO BW GCR 4 04 198 47 58 9 0 ...
Page 109: ...MAN B W MAN Diesel Installation Aspects 5 ...
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Page 143: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
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Page 163: ...MAN B W MAN Diesel Fuel 7 ...
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Page 179: ...MAN B W MAN Diesel Lubricating Oil 8 ...
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Page 199: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
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Page 209: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
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Page 213: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
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Page 219: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
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Page 231: ...MAN B W MAN Diesel Starting and Control Air 13 ...
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Page 239: ...MAN B W MAN Diesel Scavenge Air 14 ...
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Page 265: ...MAN B W MAN Diesel Engine Control System 16 ...
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Page 275: ...MAN B W MAN Diesel Vibration Aspects 17 ...
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Page 289: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
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Page 313: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
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Page 339: ...MAN B W MAN Diesel Project Suppport and Documentation 20 ...
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Page 349: ...MAN B W MAN Diesel Appendix A ...
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