BorgWarner’s ad­vanced silent timing chain en­hances fuel econ­omy

Auto components India - - COVER STORY - ACI Bureau ACI

BorgWarner Inc., a global prod­uct leader in clean and ef­fi­cient tech­nol­ogy so­lu­tions for com­bus­tion, hy­brid and elec­tric ve­hi­cles, has started sup­ply­ing its ad­vanced 6.35 mm silent timing chain for the new Maruti Suzuki Baleno. Pow­ered by a 1.2-liter ga­so­line en­gine, the hatch­back is avail­able in Europe, Ja­pan and Is­rael.

“BorgWarner is pleased to pro­vide the ad­vanced silent timing chains to Maruti Suzuki,” Joe Fadool, Pres­i­dent and Gen­eral Man­ager, BorgWarner Morse Sys­tems, said. “The com­bi­na­tion of our lowfric­tion tech­nolo­gies and lo­calised man­u­fac­tur­ing strengthen our prod­uct lead­er­ship po­si­tion,” he said. In In­dia the silent chains are man­u­fac­tured by the Morse Sys­tems plant at Kakkalur, near Chen­nai.

BorgWarner had al­ready launched its new silent chain for the bal­ance shaft drive on Hyundai’s Theta II four-cylin­der gas di­rect-in­jec­tion (GDI) and turbo-GDI en­gines. These en­gines power the Hyundai Sonata and Kia Sorento, K5 and Sportage for the US and Korean mar­kets. De­signed to with­stand the harsh en­vi­ron­ment and stresses of GDI en­gines, the new silent chain de­liv­ers lower noise, vi­bra­tion and harsh­ness (NVH) and greater dura­bil­ity com­pared with roller chain sys­tems for bal­ance drive ap­pli­ca­tions. The in­no­va­tive low fric­tion silent timing chains, de­vel­oped and man­u­fac­tured by BorgWarner, are de­signed to im­prove fuel econ­omy of about 0.3 to 0.6%. The com­pany sources said it was too early to pin­point the ex­act fuel econ­omy, though they con­firm that it is a favourable im­prove­ment from the silent chain with­out the op­ti­mised link back de­sign and `E’ pol­ish fin­ish.

BorgWarner’s in­verted tooth silent timing chain fea­tures an op­ti­mised link back de­sign and `E’ pol­ish fin­ish to re­duce con­tact area and fric­tion as the chain slides along the arms and guides of the timing drive. Lower fric­tion im­proves dura­bil­ity and in­creases en­gine ef­fi­ciency, al­low­ing the en­gine to use less fuel. BorgWarner has been sup­ply­ing low fric­tion silent chains to other au­tomak­ers glob­ally as well. As au­tomak­ers be­gan down­siz­ing en­gines to im­prove fuel econ­omy, BorgWarner recog­nised this as an op­por­tu­nity and in­tro­duced best-in-class silent chain tech­nol­ogy that re­duces fric­tion to im­prove en­gine ef­fi­ciency and fuel econ­omy.

“At our core, our tech­nolo­gies help make a cleaner, more en­ergy-ef­fi­cient world. That is what has driven BorgWarner for sev­eral years now, bal­anc­ing our ef­forts across the com­bus­tion, hy­brid and elec­tric ve­hi­cle seg­ments. We have a di­verse, well-bal­anced prod­uct port­fo­lio that aligns with the mar­ket,” the com­pany spokesper­son said.

The silent chains can­not be used in the diesel en­gines. How­ever, the fric­tion re­duc­tion fea­tures, ra­dius back and `E’ Pol­ish used in this silent chain is al­ready made avail­able in the BorgWarner roller and bush chains. So the tech­nol­ogy is ba­si­cally avail­able for diesel en­gines also but with dif­fer­ent chain type.

As a global prod­uct leader in clean and ef­fi­cient tech­nol­ogy so­lu­tions, BorgWarner is pre­pared for BS VI im­ple­men­ta­tion in In­dia. It is gear­ing up to in­tro­duce or man­u­fac­ture prod­ucts that are aligned to In­dian emis­sion stan­dards.

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