"Lubricants" (WG8 ML)
Reliability and availability are today of paramount importance to all users of internal combustion engines. Inherent engine design reliability must be complemented by a suitable periphery and the appropriate choice and treatment of working media such as lubricants and fuel etc.
The CIMAC Working Group -"Lubricants" is truly world-wide, with active members from Japan, US and all round Europe/Scandinavia. Experts from all relevant kind of background - Equipment/Engine Manufacturers, Oil Companies, Additive Companies, Classification Society, Shipyard etc - come together twice a year on a voluntary basis to work on matters/guidelines/recommendations to help better serve the industry. Within this WG, there are sub-groups who meet frequently, in addition to the twice yearly meeting, to work on finer issues delegated down.
The proof of its effort is shown by CIMAC Recommendations No.13 and 15 which are Lubrication Guidelines for Trunk Piston Medium Speed Diesel Engines and 2-Stroke Cross-head Diesel Engines respectively. Success from these efforts has given impetus to the group in scoping other key industry issues, relating to lubrication, to work on.
The WG is now into advanced stages of finalising the last of five further documents, entitled:
- OIL CONSUMPTION OF MEDIUM SPEED DIESEL ENGINES
- THE IMPACT OF FUELS ON LUBRICATION - 4 & 2 STROKE
- LUBRICATION OF LARGE HIGH SPEED ENGINE
- OIL DEGRADATION
- GAS ENGINE LUBRICATION
These documents have been phased into the industry over 1999 to year 2003.
To do its task effectively, the WG maintains a close link with the special CEC Group "Marine and Large Engine" which supports the industry with test techniques etc.
New topics of research are under the way now and four subjects are now studied in our group:
- Treatment of lubricants
- Medium speed Engine Lubtication Guideline – update of recommendation no. 13
- Impact of Emission Control Measures on Lubrication
- Lubrication of Engines on Non—Standard Fuels
It was also found out recently that two more issues need to be studied:
- Lubrication of large diesel engines running for prolonged period on Low Sulphur Fuel Oil
- Inflammability of Lubricant / Fuel vapours in the crankcase (Flash Point)