WinGD X72DF, Руководство по установке

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Marine Installation Manual 2021-08 4-2
4 Ancillary Systems
4.1 Twin-engine installation
X72DF
4.1 Twin-engine installation
A vessel equipped with two separate main propulsion engines is considered a
twin-engine installation. The installation of two WinGD 2-stroke engines allows
combining individual engine auxiliary systems.
In Table 4 - 1 WinGD provides information based on engines’ requirements.
Class and other binding rules might overrule.
Table 4 - 1 Common and independent systems in twin-engine installations
System Independent
system for each
engine required
Common
system possible
Remarks
LT cooling water system
(see Figure 4 - 1,

4-3 )
X
Please note: Parallel independent LT cooling water
supply per engine to the scavenge air coolers from
common LT cooling water circuit
X
Please note: Parallel independent LT cooling water
supply per engine to the LO cooler and HT cooling
water cooler from common LT cooling water circuit
HT cooling water system X
Main LO system X
Cylinder LO system
(see Figure 4 - 11,

4-23 and
Figure 4 - 12,

4-24 )
X Day tanks for high- resp. low BN lubricating oil
X Rising pipe
X Separate distribution to each engine
Fuel oil system
X
a)
a) Independent systems required if a fuel flexibility for both engines is specified, meaning that the engines can independently operate in gas
mode, fuel sharing mode or diesel mode. Main injector fuel can be MGO, MDO or HFO in fuel sharing mode and diesel mode.
X
b)
b) Common system possible if no fuel flexibility is specified, meaning that both engines can only run with the same main injector fuel, i.e. if
one engine operates in gas mode, the other engine cannot operate with HFO as main injector fuel.
Feed system
X (X) Booster circuit systems
Air supply system X
Control air X Supply system
Leakage collection system
and washing devices
X
Exhaust gas system X
Engine venting pipes X
X
(X)
= proven solution
= alternative solution, if specific conditions are met