STOICHIOMETRIC DIESEL ENGINE

A FEASIBILITY STUDY ON THE DEVELOPMENT OF A STOICHIOMETRIC DIESEL ENGINE IS PROPOSED USING THE THERMAL IGNITION COMBUSTION CHAMBER. THE ADIABATIC DIESEL ENGINE WITHOUT WATER OR AIR COOLING ALLOWS THE THERMAL IGNITION CHAMBER TO STORE HEAT DURING COMBUSTION AND RELEASE THE ENERGY FOR IGNITION IN THE FOLLOWING CYCLE. INJECTION OF FUEL ON TO 1800-2000 DEG. F WALL TEMPERATURE WILL PREPARE THE FUEL FOR COMBUSTION AND IGNITE IT VIA SURFACE IGNITION. THE PARTIAL PRODUCTS OF COMBUSTION PRODUCTS ISSUING FROM THE THERMAL IGNITION CHAMBER TO THE HOT ADIABATIC MAIN CHAMBER SHOULD ALLOW HIGH HEAT RELEASE RATES TO OCCUR. IN A CONVENTIONALLY COOLED PRECHAMBER DIESEL, THE SLOW HEAT RELEASE RATE OF THE PARTIAL COMBUSTION PRODUCTS INTO THE MAIN CHAMBER IS RECOGNIZED AS THE PROBLEM AREA. AIR UTILIZATION AND MULTIFUEL CAPABILITY ARE EXPECTED TO IMPROVE AND LEAD TOWARDS A STOICHIOMETRIC DIESEL ENGINE. THE CONSEQUENT ADIABATIC ENGINE SHOULD APPROACH THE HOMOGENEOUS COMBUSTION GASOLINE ENGINE RESULTING IN A MORE COMPACT, LIGHT WEIGHT, HIGH POWER DENSITY POWER PLANT WITHOUT THE NEED FOR A COMPLEX TURBOCHARGER SYSTEM. A COMPLETE ANALYSIS OF THE COMBUSTION PHENOMENA IN A STOICHIOMETRIC DIESEL ENGINE WILL BE MADE USING EXISTING ADIABATIC ENGINE DATA. ENGINE PERFORMANCE, SPECIFICATIONS AND TURBOCHARGER REQUIREMENTS WILL BE OBTAINED.