Axial damper.

The engine is equipped with an integrated axial damper. The duty of the axial
damper is the reduction of axial vibrations.
The damper consists of an upper , and a lower cylindrical part , which are both
screw fastened to the last bearing girder, and of a damping flange  which is a
part of the crankshaft. The oil quantity required for the damping is adjusted by
means of a throttling valve.

The engine is equipped with an axial damper monitoring system arranged above
the end casing at the free end. 
The oil pressure in the aft side and fore side chamber
of the axial damper is monitored, and in case of oil pressure drop an alarm is
triggered (setting values see Alarms and Safeguards .

The reason for this alarm must be investigated and remedied:
 

Orifices in the pressure gauge pipes clogged
 
Shut-off valves closed in the pressure gauge pipes

 Low oil pressure and / or high oil temperature in the bearing oil system
 
Throttle valve mal-adjusted
 
Excessive wear of the sealing rings, e.g. caused by dirt particles (clearance
too big).

precautions involved in running with Sulzer RT flex

1.   What are the precautions involved in running with RT flex

    Reliability and safety has the utmost priority in the common rail RT-flex system.

v  The duplicated high-pressure delivery pipes have stop cocks at both ends to isolate any failed pipe. Each single pipe is adequate for the full delivery. All high pressure pipes are double-walled for safety.

v  Every injection nozzle is independently monitored and controlled by the WECS. In case of difficulties, such as a broken high pressure line or a malfunctioning injector, the affected injection valve can be cut out individually without losing the entire cylinder.

v  If the stroke measuring sensor fails, the WECS system switches the ICU to a pure time control and triggers the signal based on the timing of the neighbouring cylinders.