06_6RTA58T-B 01_RT-flex_RTA engine basics主机教程.ppt

HHM RTA Training / A. Spicher 6RTA58T-B Introduction 6RTA58T-B Comparison RTAx8T-B engines W?rtsil? low-speed engine portfolio Engine data – RTA/RT-flex58T-D Engine dimensions – RTA/RT-flex58T-D RTA/RT-flex-8T - Engines in Service RTA48T / T-B T T-B Engines in operation 122 61 Engines on order 0 92 RTA58T / T-B T T-B flex Engines in operation 74 15 11 Engines on order 11 4 25 RTA68-B -B flex Engines in operation 9 2 Engines on order 9 12 Status: November 2007 RTA/RT-flex-8TD - Piston running TriboPack RTA/RT-flex-8TD - Combustion chamber RTA/RT-flex-8TD - Piston rod gland box Piston rod gland box Gland box can be dismantled up- and downwards RTA/RT-flex-8TD - Piston rod gland box Piston rod gland box 2 highly efficient pre-scraper rings to remove dirt and remain with clean system oil 2 gastight sealing rings 6 highly efficient oil scraper rings with grey cast iron lips High contact pressure between oil scraper rings and hard piston rod Big oil drain area to re-circulate system oil Quasi-zero leakage to neutral space System oil consumption expected less than 6?kg per cylinder and day Running in RT-flex60C and RTA84CU RTA/RT-flex-8TD - Crosshead RTA/RT-flex-8TD - Big end bearing RTA/RT-flex-8TD - Main bearing Camshaft drive Fuel pump / Actuator pump Fuel pump / Actuator pump Fuel pump / Actuator pump Injection piping layout Function of fuel injection pump A fuel pump with valve control is a camshaft driven plunger pump, which fuel quantity to the injectors is controlled by valves. The suction valve controls the timing while the spill valve controls the quantity. To change the injected fuel amount, the spill valve or suction valve position is controlled by excentric shafts. The suction valve shaft is rotated by the VIT-Cylinder The spill valve shaft is rotated by the electric fuel pump actuator Working Principle of Fuel Pump Function of fuel injection pump Function and Effect of SPCV Delivery Curve Red