MAN B&W Two-stroke Engines Service Experience

This paper describes in detail the service experience of the new generation of super-long stroke S and G Mk 9 type engines. Focus will be on the cylinder condition in general and cold corrosion control in particular.

This paper describes in detail the service experience of the new generation of super-long stroke S and G Mk 9 type engines. Focus will be on the cylinder condition in general and cold corrosion control in particular.

The service experience with new jacket cooling water systems, new cylinder oils (BN 100 types), modified combustion chamber design and new versions of the Alpha Lubricators (main focus: Alpha Mk II) will be outlined.

- Cold Corrosion Control   Page 5
- Introduction of BN 100 cylinder oils page 5
- Increased jacket cooling water temperatures – various systems page 9
- New cylinder liner designs page 11
- New Alpha Mk II cylinder lubricator page 13
- Acceleration Issues for ME-C/ME-B Mk 9 – S and G Type Engines page 14
- Astern Start and Running Issues – ME-B Types Engines page 15
- ME-B9.3 Updates − Timing Unit page 16
- Low-Load Operation Update page 17
- K98 crosshead bearings in T/C cut-out mode page 18
- Cylinder liner cold corrosion in T/C cut-out mode page20
- Exhaust valve burn-away at low load page 20
- Exhaust Gas Recirculation Service Experience page 22
- Emergency Running of 6G70ME-C9.2 without Turbocharger page 26
- Fuel Equipment page 28
- Cavitation in Hydraulic Exhaust Valve Actuation System page 30
- Service Experience for Main Hydraulic Pumps on ME Engines page 32
- Conclusion page 33