▁when ▁there ▁is ▁sufficient ▁pressure ▁and ▁add ▁more ▁fuel ▁when ▁there ▁is ▁less ▁pressure ▁allowing ▁the ▁engines ▁to ▁run ▁closer ▁to ▁a ▁perfect ▁dies el ▁cycle . ▁This ▁allows ▁the ▁engine ▁to ▁run ▁as ▁efficiently ▁as ▁the ▁environment ▁and ▁heat ▁capacity ▁of ▁the ▁metal ▁will ▁allow . ▁ ▁Long ▁term ▁effects ▁ ▁Because ▁these ▁new ▁engines ▁can ▁diagn ose ▁themselves ▁and ▁run ▁efficiently ▁without ▁an ▁operator ▁changing ▁settings , ▁these ▁engines ▁require ▁less ▁crew ▁to ▁maintain ▁them ▁when ▁at ▁sea . ▁This ▁crew ▁reduction ▁equ ates ▁to ▁che aper ▁sh ipping ▁for ▁companies ▁and ▁hence ▁more ▁and ▁che aper ▁global ▁trade . ▁ ▁Cam less ▁engines ▁in ▁cars ▁ ▁The ▁British ▁company ▁Cam con ▁Technology ▁is ▁developing ▁a ▁cam less ▁engine ▁for ▁passenger ▁vehicles ▁based ▁on ▁their ▁propriet ary ▁Int ellig ent ▁Val ve ▁Act u ation ▁( IV A ) ▁system . ▁Cam con ▁has ▁collabor ated ▁with ▁J agu ar ▁Land ▁R over ▁to ▁fit ▁IV A ▁onto ▁an ▁In gen ium ▁ 2 . 0 l ▁ 4 ▁cyl inder ▁pet rol ▁engine ▁and ▁they ▁joint ly ▁published ▁results ▁at ▁the ▁ 2 0 1 7 ▁A achen ▁Kol lo qu ium ; ▁their ▁paper ▁is ▁available ▁on ▁the ▁Cam con ▁website ▁. ▁Cam con ▁also ▁discussed ▁features ▁and ▁benefits ▁in ▁an ▁article ▁and ▁video ▁that ▁was ▁published ▁in ▁Aut oc ar ▁magazine ▁ ▁" New ▁Val ve ▁Technology ▁gives ▁Pet rol s ▁the ▁E ffic iency ▁of ▁Dies els " ▁▁ ▁The ▁Swedish ▁company ▁Free val ve ▁AB ▁(