Related by context. Frequent words. (Click for all words.) 56 combustors 55 gaseous fuels 55 reciprocating engines 55 reduce NOx emissions 55 liquefied petroleum 54 CNG compressed natural 54 diesel particulate filter DPF 54 exhaust aftertreatment 54 Variable Cylinder Management 53 thermal oxidation 53 hydrogen internal combustion 53 dimethyl ether 53 urea injection 52 AuraGen 52 compressed hydrogen 52 centrifugal compressors 52 automotive drivetrain 52 Dual Fuel 52 drivetrain components 52 diesel powered 51 aftertreatment 51 diesel engines 51 Selective Catalytic Reduction SCR 51 B# biodiesel [002] 51 hydraulic braking 51 cell SOFC 51 nitrogen oxide NOx emissions 51 Genset 51 Jenbacher 51 CSRV 51 autogas 51 Liquid Natural Gas 51 HPDI 51 evaporative emissions 50 Capstone MicroTurbine 50 compressed natural 50 Direct Injection 50 CNG refueling 50 diaphragm pumps 50 hydroprocessing 50 DPFs 50 diesel oxidation catalysts 50 US APWR 50 genset 50 pneumatic actuators 50 Cummins Westport 50 oxidiser 49 diesel engine 49 variable valve 49 Turbocharging 49 PEM fuel 49 #.# liter Duratorq 49 electrically driven 49 Ultra Low Sulfur Diesel 49 GE Jenbacher 49 chassis cabs 49 variable geometry turbocharger 49 CFM# engines 49 particulate filter 49 hybrid propulsion 49 #.#L diesel 49 LPG liquefied petroleum 49 dry sump 49 CleanFUEL USA 48 corrosive fluids 48 cleanest diesel 48 SCAQMD 48 #kW [002] 48 #.# liter TDI 48 diesel particulate filters 48 oxyfuel 48 electrohydraulic 48 diesel powertrains 48 NExBTL renewable diesel 48 Eco Tec 48 explosive atmospheres 48 liter TFSI 48 microturbine 48 ACERT 48 conventional internal combustion 48 Solid Oxide Fuel Cell 48 exhaust emission 48 Fuel Tank 48 GenDrive 48 Pyrolysis 47 Dresser Masoneilan 47 Fischer Tropsch process 47 particulate filters 47 electrolyzers 47 algae biomass 47 drivelines 47 Emission Reduction 47 uninterruptable power 47 hybrid powertrains 47 SULEV 47 combustion optimization 47 CNG 47 gasifiers 47 PurePower 47 SF6 47 H2GO TM