Diesel Engines Conversion to Natural Gas Project Tomasetto Achille Presentation
Leadership Keys: Developments and New Products Multipoint Gas Injection Sequential System MPGI (Multipoint Gas Injection)
Leadership Keys: Developments and New Products In 2004, Deutz Agco, the only Argentinian Manufacturer of heavy engines, entrust Tomasetto Achille the development of conversion systems for its whole line of Diesel heavy engines to work with Natural Gas. In 2004, and after two years of development, a Dedicated conversion system to Natural Gas is presented for Mercedes Benz OM 366 engines for the Aspirated and Turbo Intercoolers versions.
Leadership Keys: Developments and New Products Widening the range of application of its products, Tomasetto Achille develops a conversion system for small motorcycles for differents uses. Use in Taxis Use in Delivery
Leadership Keys: Special Developments Through its Development Center, Tomasetto Achille sees to the need of Special Projects, about which it is constantly consulted. Development Center
Presentation of Conversion Systems Development from Diesel Cycle to Otto Cycle to Natural Gas MERCEDES BENZ OM366LA TURBO INTERC. 220 CV @ 2600 RPM 69 KG.M @ 1400 RPM
Stages of the Development of a Diesel Conversion System to Natural Gas Study of cost, time, market feasibility, and possibilities of application. Engineering of conversion Kit Components. Components Test in engine testing bench. Components life Test in engine testing bench. Behaviour and working life Test on vehicles. Definition of a conversion system n-times replicable. Suppliers development for pieces in series.
Primary Aspects to be taken into account in the design of a conversion system from Diesel to Natural Gas. Definition of the appropriate compression relationship. Configuration of the Combustion Chamber and the Thermic and Structural sizing of its components. The variability of the spark ignition engines combustion and the lowest combustion speed of the Natural Gas. Setting up of an ignition system. The configuration of the camshaft (cruce de levas). Setting up of a Fuel feeding System, dosing and distribution mixture. Control of mixture air-fuel System in real time. Fuel storage.
Principles of an Efficient Combustion Position of the Sparking Plug Dynamics of the Mixture Quality of the Mixure Design of the Combustion Chamber Efficient Combustion Distribution of the Mixture Less Consumption Less pollution
Expected Dynamic Effects in the Mixture SWIRL TUMBLE SQUISH MICRO TURBULENCES
Virtual Sizing of Components Critic Zones Detection Study of thermic diffusion by means of the method of the finite elements Structural Analysis of Deformations
Validity of the Virtual Analysis Example Scuff Cylinder 3
Modelization of the Prototypes as a result of components validation tests Primitive Insert New Insert
Modelization of the Prototypes as a result of components validation tests Real Pieces Manufacture in Series
Timing Valves and the Performance OVERLAP 40º AAA 20º PMS 0º RCE2 0º 270º 90º Lc RCA 50º AAE5 0º 180º PMI
Sequential Electronic Ignition and ControlSystem of the Mixture in Real Time Mixture Control in Real Time Chart of the Ignition
Fuel Dosing and Mixture Distribution Fluid dynamic analysis and speeds study
Installation Chart CNG ELECTRÓNIC OF GAS CONTROL BUTTERFLY CASE COMPENSATED REDUCERS STEP BY STEP CONTROL FOR GAS MIXER AIR/GAS MIXER CABEZA DE CILINDROS DEDICADA INTERCOOLER ELECTRÓNIC IGNITION OXIGEN SENSOR TURBOCOMPRESSOR AIR FILTER
Result in Testing Bench Engine Mercedes Benz OM 366 LA GNC 240 230 220 95 CV Power Specific Consumption gr/cv.hr 210 200 190 180 170 160 150 140 130 120 110 100 90 80 85 75 65 Torque KG.m 70 60 50 40 30 Pot. Diesel [CV] Pot.GNC [CV] C.Esp.GNC [g/cv.h] Torque Diesel [Kg.m] Torque GNC [Kg.m] 55 20 45 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 RPM
Presentation of Prototyipe Engines Deutz CNG Family DEUTZ F4L 913 ASPIRATED 85 CV @ 2800 RPM 26 KG.M @ 1750 RPM
Result in Testing Bench Engine Deutz 4 Cyl. Aspirated CNG 90,0 30,0 85,0 29,0 80,0 28,0 Corrected Power (CV) 75,0 70,0 65,0 60,0 55,0 27,0 26,0 25,0 24,0 23,0 Corrected Torque (CV) 50,0 45,0 Diesel Power CV) GAS Power (CV) Diesel Torque (Kgm) GAS Torque (Kgm) 22,0 21,0 40,0 20,0 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 RPM
Technology State Engine State Dedicated Systems Mercedes Benz OM 366 Turbo + Intercooler OM 366 Aspirated OM 352 Deutz F4L 913 4 Cyl Aspirated Available Available Available Available
Experiencies Photos