WinGD brings greater trans­parency to cylin­der oil de­ci­sions

Lubricant World - - PANORAMA WORLDWIDE -

En­gine de­signer WinGD ( Win­terthur Gas & Diesel) has pri­or­i­tized col­lab­o­ra­tion and trans­parency in its new cylin­der lu­bri­ca­tion guide, to en­sure that se­lect­ing the right oil is eas­ier than ever. For the first time, the new doc­u­men­ta­tion pro­vides ship op­er­a­tors with con­sol­i­dated, at- a- glance in­for­ma­tion high­light­ing the spe­cific us­age con­di­tions for each and ev­ery ap­proved cylin­der oil.

The guid­ance is the re­sult of sev­eral months' work with ma­jor oil com­pa­nies to make us­age re­quire­ments more trans­par­ent. Pre­vi­ously, the guide­lines for each oil were found only in the in­dus­try stan­dard No Ob­jec­tion Let­ters ( NOL) is­sued by WinGD to oil com­pa­nies, and avail­able only upon re­quest by a cus­tomer to an oil com­pany di­rectly. Now this in­for­ma­tion has been in­cluded in the full list of ap­proved cylin­der oils.

To find an ap­pro­pri­ate cylin­der oil, users first se­lect a suit­able Base Num­ber ( BN) range based on their fuel sul­phur con­tent. Cus­tomers then look through the guide to see which oil prod­ucts fall within a spec­i­fied BN range. The doc­u­ment then high­lights whether each oil is ap­proved for gen­eral, long- term use or whether fur­ther stip­u­la­tions – such as a time limit or greater fre­quency of in­spec­tions - are re­quired. An ad­di­tional cat­e­gory, la­belled as ‘ DF val­i­dated' shows whether the oil has passed a val­i­da­tion trial while burn­ing gas as the pre­dom­i­nant fuel dur­ing that trial.

"Cylin­der oil is not just an­other con­sum­able on­board – it's con­sid­ered an im­por­tant en­gine com­po­nent that en­sures re­li­able op­er­a­tion,” says Frank Ven­ter, WinGD Project En­gi­neer Tri­bol­ogy Fuels & Lu­bri­cants. “Given the al­ready wide vari­abil­ity in ex­ist­ing fuels avail­able, it is im­por­tant that en­gine com­pa­nies and oil sup­pli­ers work to­gether to of­fer clar­ity for ship op­er­a­tors about which oils can be used and how. This will be­come in­creas­ingly im­por­tant as we em­brace a de­car­bonised fu­ture with po­ten­tially mul­ti­ple var­ied sources of both liq­uid and gaseous fuels.”

The de­vel­op­ment fol­lows ex­ten­sive work with oil ma­jors in the run up to 2020 to en­sure that cylin­der oils could meet the chal­lenges of new fuel types. The en­gine de­signer's well- es­tab­lished val­i­da­tion pro­ce­dure has iden­ti­fied many cylin­der oils with a broad spec­trum of prop­er­ties ( in­clud­ing BN) which are fit for op­er­a­tion with both low and high- sul­phur fuels as well as for gas fuel op­er­a­tion.

The cor­rect use of ap­pro­pri­ate cylin­der oil com­pletes WinGD's ro­bust and well- proven tri­bo­log­i­cal de­sign con­cept. Its en­gines fea­ture state- of- the- art cylin­der lu­bri­ca­tion sys­tems com­bined with unique cylin­der liner, pis­ton and pis­ton ring de­signs. These im­prove re­li­a­bil­ity and en­able a long time be­tween over­haul for com­bus­tion cham­ber com­po­nents, ul­ti­mately re­sult­ing in more pre­dictable and lower cost en­gine main­te­nance.

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