MAN B&W S65ME-C8.2-GI-TII User Manual

MAN B&W 5.18
Page 4 of 8
MAN Diesel
198 46 953.6
MAN B&W 70-26 engines
If deviation occurs, a proportional valve is actu-
ated. Hereby high pressure oil is fed to one or the
other side of the servo piston, via the oil distribu-
tor ring, until the desired propeller pitch has been
reached.
The pitch setting is normally remote controlled,
but local emergency control is possible.
Fig. 5.18.05: Servo oil system for MAN Alpha VBS type CP propeller
178 22 384.1
Servo oil system for VBS type CP propeller
The design principle of the servo oil system for
MAN Diesel & Turbo’s MAN Alpha VBS type CP
propeller is shown in Fig. 5.18.05.
The VBS system consists of a servo oil tank unit,
the Hydraulic Power Unit, and a coupling flange
with electrical pitch feedback box and oil distribu-
tor ring.
The electrical pitch feedback box continuously
measures the position of the pitch feedback ring
and compares this signal with the pitch order sig-
nal.
(YDRAULICæ0OWERæ5NIT
3TERN
TUBEæOIL
TANK
/ILæTANK
FORWARD
SEAL
0ITCH
ORDER
3ERVO
PISTON
,IPæRINGæSEALS
(YDRAULIC
PIPE
0ITCH
FEEDBACK
$RAIN
TANK
0ROPELLERæSHAFT
/ILæDISTRIBUTION
RING
3TERN
TUBE
-ONOBLOCK
HUB
:INC
ANODE
--
03,
03,
0!,
0!,0!(0)
-
-
0)
,!,
4!(
4)

MAN B&W S65ME-C8.2-GI-TII Specifications

General

Brand	MAN B&W
Model	S65ME-C8.2-GI-TII
Category	Engine
Language	English