Project. Tomasetto Achille Presentation

Transcription

1 Diesel Engines Conversion to Natural Gas Project Tomasetto Achille Presentation

2 Leadership Keys: Developments and New Products Multipoint Gas Injection Sequential System MPGI (Multipoint Gas Injection)

3 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.

4 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

5 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

6 Presentation of Conversion Systems Development from Diesel Cycle to Otto Cycle to Natural Gas MERCEDES BENZ OM366LA TURBO INTERC RPM RPM

7 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.

8 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.

9 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

10 Expected Dynamic Effects in the Mixture SWIRL TUMBLE SQUISH MICRO TURBULENCES

11 Virtual Sizing of Components Critic Zones Detection Study of thermic diffusion by means of the method of the finite elements Structural Analysis of Deformations

12 Validity of the Virtual Analysis Example Scuff Cylinder 3

13 Modelization of the Prototypes as a result of components validation tests Primitive Insert New Insert

14 Modelization of the Prototypes as a result of components validation tests Real Pieces Manufacture in Series

15 Timing Valves and the Performance OVERLAP 40º AAA 20º PMS 0º RCE2 0º 270º 90º Lc RCA 50º AAE5 0º 180º PMI

16 Sequential Electronic Ignition and ControlSystem of the Mixture in Real Time Mixture Control in Real Time Chart of the Ignition

17 Fuel Dosing and Mixture Distribution Fluid dynamic analysis and speeds study

18 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

19 Result in Testing Bench Engine Mercedes Benz OM 366 LA GNC CV Power Specific Consumption gr/cv.hr Torque KG.m Pot. Diesel [CV] Pot.GNC [CV] C.Esp.GNC [g/cv.h] Torque Diesel [Kg.m] Torque GNC [Kg.m] RPM

20 Presentation of Prototyipe Engines Deutz CNG Family DEUTZ F4L 913 ASPIRATED RPM RPM

21 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, RPM

22 Technology State Engine State Dedicated Systems Mercedes Benz OM 366 Turbo + Intercooler OM 366 Aspirated OM 352 Deutz F4L Cyl Aspirated Available Available Available Available

23 Experiencies Photos