Tata Mo­tors CNG en­gine gets BS-VI cer­ti­fi­ca­tion

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Tata Mo­tors has re­ceived BS-VI Type Ap­proval cer­tifi­cate for its 3.8L NA SGI CNG en­gine from ARAI (Au­to­mo­tive Re­search As­so­ci­a­tion of In­dia). It is the first OEM in In­dia to get BS-VI cer­ti­fi­ca­tion for a nat­u­rally aspi­rated CNG en­gine for com­mer­cial ve­hi­cles. This cer­ti­fi­ca­tion in­cludes meet­ing the tailpipe mass emis­sions as well as com­pli­ance with On-Board Di­ag­nos­tics (OBD) norms as man­dated by govern­ment reg­u­la­tion.

Ra­jen­dra Petkar, Chief Tech­nol­ogy Of­fi­cer (CTO), Tata Mo­tors, said, “This BS-VI en­gine cer­ti­fi­ca­tion mile­stone has been crossed with in­tense de­sign and de­vel­op­ment fo­cus, by lever­ag­ing in-house ca­pa­bil­i­ties and those of our tech­nol­ogy part­ners. We have worked hard to build a lead­er­ship po­si­tion in the mar­ket by pro­vid­ing our cus­tomers with eco­nom­i­cal, best-in-class nat­u­ral gas ve­hi­cle prod­ucts in the com­mer­cial ve­hi­cle mar­ket and this de­vel­op­ment of BS-VI so­lu­tion will fur­ther re­in­force our mar­ket of­fer­ing.”

The 3.8 NA SGI CNG en­gine is a nat­u­rally aspi­rated en­gine does not need a tur­bocharger. It pro­duces a max­i­mum power of 85 Ps @ 2500 RPM with a torque of 285 Nm @ 2500 RPM. The com­bus­tion oc­curs at sto­i­chio­met­ric con­di­tions in this en­gine. This en­gine comes with se­quen­tial gas in­jec­tion tech­nol­ogy, pi­o­neered by Tata Mo­tors in In­dia. Ex­haust af­ter-treat­ment sys­tem fea­tur­ing three-way cat­alytic con­verter re­duces pol­lu­tants be­low lim­its man­dated by reg­u­la­tion.

The 3.8 NA SGI CNG en­gine will power 4T to 9T GVW buses and trucks such as 407, 709 and 909 (ex­ist­ing BS-IV ver­sions), which are al­ready very pop­u­lar mod­els in the mar­ket, with the best-in-class fuel ef­fi­ciency.

A state of the art Emis­sion Test Fa­cil­ity has been in­stalled at the Power Sys­tems Engi­neer­ing Di­vi­sion (PSE), in ERC, Pune. This fa­cil­ity serves as one of the cru­cial mile­stones for BS-VI im­ple­men­ta­tion, the com­pany said.

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