▁approximate ▁performance , ▁wheel ▁arrangement ▁or ▁application ▁and ▁the ▁operating ▁weight . ▁The ▁Ö BB ▁series ▁ 2 0 6 0 ▁was ▁therefore ▁the ▁work ▁design ation ▁D H 2 0 0 B 2 8 . ▁The ▁other ▁models ▁carried ▁the ▁name ▁J W . ▁The ▁Railway ▁engineering ▁department ▁was ▁taken ▁over ▁by ▁Mol in ari ▁Rail . ▁ ▁Company ▁profile ▁and ▁products ▁▁ ▁Jen bach er ▁currently ▁special izes ▁in ▁lean ▁burn ▁gas ▁engines , ▁including ▁c og ener ation ▁plants ▁and ▁container ized ▁power ▁generator ▁sets ▁util izing ▁said ▁gas ▁engines . ▁Jen bach er ▁began ▁producing ▁gas ▁engines ▁in ▁ 1 9 5 7 . ▁ ▁Jen bach er ' s ▁main ▁facility ▁still ▁res ides ▁in ▁Jen bach ▁in ▁Austria , ▁and ▁emp lo ys ▁over ▁ 1 4 0 0 ▁workers . ▁Jen bach er ▁manufact ures ▁the ▁gas ▁engines ▁from ▁the ▁ground - up ▁at ▁this ▁facility , ▁including ▁in - house ▁c rank sh aft s . ▁Jen bach er ▁also ▁maintain s ▁regional ▁engine ▁assembly ▁plants ▁in ▁H ang z hou , ▁China , ▁and ▁Ver es egy ház ▁in ▁Hung ary . ▁ ▁Jen bach er ▁gas ▁engines ▁are ▁exclus ively ▁Otto ▁cycle ▁units ▁with ▁industrial ▁grade ▁spark ▁pl ugs ▁providing ▁ign ition . ▁Sm aller ▁models ▁util ize ▁sto ichi ometric ▁comb ust ion , ▁while ▁the ▁larger ▁engines ▁are ▁lean ▁burn ▁engines ▁with ▁pre ch am ber ▁ign ition . ▁ ▁Jen bach er ▁engines ▁run ▁on ▁natural ▁gas , ▁land fill