L+V51/60DF - MAN Diesel & Turbo - 首页

Technical Specification
Modern and innovative technology
MAN Diesel charging system
Optimally adapted charging system (constant pressure)
with modern MAN Diesel turbochargers from the
TCA series having long bearing overhaul intervals and
high efficiency. Good part load operation thanks to
very high turbocharger efficiency even under low pressure
conditions. The V51/60DF engines are charged
by just one TCA turbocharger, which means that only
one common exhaust gas collector pipe is required
for all cylinders.
Service-friendly design
Hydraulic tools for tightening and loosening cylinder
head nuts; Quick locks and/or clamp and stub connections
on pipes/lines; Generously sized crankcase
cover; Hydraulic tools for crankshaft bearings and
lower con necting rod bearings; Very low main tenance
Geislinger sleeve spring vibration dampers.
SaCoS one
The 51/60DF is equipped with the Classification So-
ciety compliant safety and control system SaCoS one .
The SaCoS one control system allows safe engine opera-
tion in diesel and gas modes with optimum consump-
tion and emissions. In gas mode, the SaCoS one control
system guarantees safe operation between the knock
and misfire boundaries. All cylinders are controlled
individually in this instance. In diesel mode, control is
based on the tried and tested management system.
This system is subject to a test-run in the factory with
the engine so that fine tuning and functional testing
during commissioning in the vessel only involve a
minimum of effort.
10 51/60DF – Four-Stroke dual-fuel engine
Soot
Soot emissions during operation on liquid fuel have
been reduced by means of optimised combustion and
turbo charging. For use in areas where soot emissions
can lead to problems during uninterrupted operation
at below 20% output and at idle, special auxiliary
equipment is offered that prevents the production visible
smoke. In gas mode there are no problems with
soot emissions.
Fuel Sharing
The 51/60DF is optional available with the innovative
FUEL SHARING feature. This means that mixtures of
Gas and HFO can be simultaneously burned in a single
engine. This feature offers total fuel flexibility to the
operator of a LNGC.
Low-load operation in gas mode
The State-Of-The-Art 51/60DF offers as an additional
optional feature a high operational flexibility to the
customer. The so called low-load capability enables
the customer to operate the 51/60DF even on loads
below 15% MCR in gas mode for a noticeable duration.
This technical ability can be realized by using the
newest MAN Diesel turbocharger technology which is
called VTA (variable turbine area).