- To prevent loss of air.
- To restrict the moisture drain flow , so that in case of excessive condensation pre warning alarm shlould intiate
- If no orifice , then there is a loss of pressure along with scavenge drain , sludge will come to deck and make it dirty and lead to pollution
- The orifice of size about 10 mm is fitted in the vent , to release the pressure in controlled way so that there will be a continuity of drain maintain to scavenge drain tank and scavenge pressure also maintained
The electrohydraulic control mechanisms of the ME engine replace the following components of the conventional MC engine: Chain drive for camshaft Camshaft with fuel cams, exhaust cams and indicator cams Fuel pump actuating gear, including roller guides and reversing mechanism Conventional fuel pressure booster and VIT system Exhaust valve actuating gear and roller guides Engine driven starting air distributor Electronic governor with actuator Regulating shaft Engine side control console Mechanical cylinder lubricators. The Engine Control System of the ME engine comprises: Control units Hydraulic power supply unit Hydraulic cylinder units, including: Electronically controlled fuel injection, and Electronically controlled exhaust valve activation Electronically controlled starting air valves Electronically controlled auxiliary blowers Integrated electronic governor functions Tacho system Electronically controlled Alpha lubricators