INJECTION SYSTEMS FOR IC ENGINES
CONTENTS CHAPTER INTRODUCTION AND AIM OF THE WORK CHAPTER EVALUATION OF HIGH PRESSURE COMPONENTS: LITERATURE SURVEY AND STATE OF THE ART 2 1 HIGH PRESSURE TECHNOLOGY TODAY AND PERSPECTIVES FOR THE FUTURE 2 2 APPLICATION OF HIGH PRESSURE IN THE FUEL INJECTION SYSTEM OF A DIESEL ENGINE 2 2 1 ROLE AND IMPORTANCE OF HIGH PRESSURE IN A COMBUSTION SYSTEM 2 2 3 REQUIREMENTS ON HIGH PRESSURE COMPONENTS 2 3 THEORY OF THICK-WALLED TUBE 2 3 1 ELASTIC THICK-WALLED TUBE 2 3 1 1 STRESS DISTRIBUTION IN AN ELASTIC THICK-WALLED TUBE 2 3 1 2 STRAIN DISTRIBUTION IN AN ELASTIC THICK-WALLED TUBE 2 3 2 CRITERIA OF ELASTIC BREAKDOWN 2 3 3 ELASTIC-PLASTIC THICK-WALLED TUBE 2 3 3 1 PARTIALLY AUTOFRETTAGED THICK-WALLED TUBE 2 3 3 1 1 STRESS DISTRIBUTION IN A PARTIALLY AUTOFRETTAGED THICK-WALLED TUBE 2 3 3 1 2 STRAIN DISTRIBUTION IN A PARTIALLY AUTOFRETTAGED THICK-WALLED TUBE 2 3 3 2 COMPLETELY AUTOFRETTAGED THICK-WALLED TUBE 2 3 3 2 1 STRESS DISTRIBUTION IN A COMPLETELY AUTOFRETTAGED THICK-WALLED TUBE 2 3 3 2 2 STRAIN DISTRIBUTION IN A COMPLETELY AUTOFRETTAGED THICK-WALLED TUBE 2 4 RESIDUAL STRESS EFFECTS ON THE OPERATING PERFORMANCE OF AUTOFRETTAGED COMPONENTS 2 5 CHALLENGES AND PROBLEMS IN AUTOFRETTAGE PROCESS EVALUATION EXPERIMENTAL TEST FACILITY AND MEASURING TECHNIQUES 3 1 EXPERIMENTAL TEST FACILITY 3 2 DATA ACQUISITION AND DATA PROCESSING 3 3 STRAIN MEASUREMENTS USING STRAIN GAUGES 3 4 STRAIN EVALUATION USING SPECKLE INTERFEROMETRY 3 4 1 MEASUREMENT OF SURFACE DISPLACEMENT 3 4 1 1 DETERMINATION OF PHASE CHANGE 3 4 1 2 PHYSICAL RELATIONSHIP BETWEEN PHASE CHANGE AND SURFACE DISPLACEMENT 3 4 1 3 PRINCIPLE OF PHASE OFFSET EVALUATION 3 4 2 MEASUREMENT OF SURFACE SHAPE 3 4 3 EVALUATION OF STRESSES AND STRAINS 3 4 4 ACCURACY OF THE Q-100 SPECKLE INTERFEROMETRY MEASURING SYSTEM EVALUATION OF FUEL LINES USING SPECKLE INTERFEROMETRY 4 1 APPLICATION POTENTIAL OF THE Q-100 MEASURING SYSTEM FOR EVALUATION OF FUEL LINES 4 1 1 APPLIED APPROACHES 4 1 1 1 ANALYTICAL CALCULATIONS 4 1 1 2 FINITE ELEMENT COMPUTATIONS 4 1 1 3 STRAIN GAUGE MEASUREMENTS 4 1 1 4 SPECKLE INTERFEROMETRY MEASUREMENTS 4 1 2 EXPERIMENTAL PROCEDURE 4 1 3 RESULTS, DISCUSSION AND CONCLUSIONS 4 1 3 1 RESULTS OF INVESTIGATIONS ON THE 30 X 10 TUBE 4 1 3 2 RESULTS OF INVESTIGATIONS ON THE 6 X 2 TUBE 4 1 3 3 CONCLUDING REMARKS 4 2 DETERMINATION OF THE YIELD STRENGTH 4 2 1 SELECTED FUEL LINE AND SEALING PRINCIPLE EMPLOYED 4 2 2 EXPERIMENTAL PROCEDURE AND EVALUATION OF RESULTS 4 2 3 RESULTS, DISCUSSION AND CONCLUSIONS 4 3 EFFECTIVE AUTOFRETTAGE PRESSURE DETERMINATION 4 3 1 SELECTED FUEL LINES, EXPERIMENTAL PROCEDURE AND PRINCIPLE OF RESULTS EVALUATION 4 3 2 SEALING PRINCIPLE EMPLOYED 4 3 3 RESULTS OF INVESTIGATION AND CONCLUDING REMARKS 4 4 EVALUATION OF THE AUTOFRETTAGE PROCESS EFFECTS IN COMPONENTS WITH COMPLEX GEOMETRIES INFLUENCE OF THE PRESSURE HOLDING TIME ON STRAIN GENERATION 5 1 INTRODUCTION 5 2 SELECTED FUEL LINES AND SEALING PRINCIPLE EMPLOYED 5 3 EXPERIMENTAL PROCEDURE AND PRINCIPLE OF RESULTS EVALUATION 5 4 RESULTS AND DISCUSSION 5 4 1 RESULTS OF INVESTIGATIONS 5 4 2 GENERAL DISCUSSION OF THE RESULTS 5 4 3 INTERDEPENDENCE BETWEEN AUTOFRETTAGE PRESSURE, HOLDING TIME AND GENERATED STRAIN STATE 5 4 4 DETERMINATION OF OPTIMAL AUTOFRETTAGE PROCESS PARAMETERS FOR SERIES PRODUCTION 5 4 5 DETECTION OF INTERNAL CRACKS BY SPECKLE INTERFEROMETRY STRAIN MEASUREMENTS ON THE OUTER SURFACE 5 5 CONCLUDING REMARKS CONCEPT FOR PRODUCTION QUALITY CONTROL OF FUEL LINES 6 1 REVIEW OF MEASURING METHODS FOR STRESS-STRAIN EVALUATION 6 2 TESTING OF NON-CONTACT APPLICABILITY OF THE Q-100 SI MEASURING SYSTEM 6 2 1 EASILY REMOVABLE HOLDER FOR THE PURPOSE OF NON-CONTACT APPLICATION OF THE OPTICAL SENSOR ON THE 30 X 10 TUBE 6 2 2 LIGHT-CONTACT APPLICATION OF THE OPTICAL SENSOR ON THE 8 X 2 2 FUEL LINE 6 3 CONCEPT FOR QUALITY INSPECTION OF FUEL LINES IN SERIES PRODUCTION 6 3 1 CONCEPT DESCRIPTION 6 3 1 1 RMC MODULE 6 3 1 2 PSA MODULE 6 3 1 3 NAVC MODULE 6 3 1 3 1 FILE CONVERTER SUBMODULE 6 3 1 3 2 MEAN VALUE SUBMODULE 6 3 1 3 3 DATABASE SUBMODULE 6 3 1 3 4 ANALYTICAL CALCULATIONS SUBMODULE 6 3 1 3 5 COMPARISON CONDITIONS SUBMODULE 6 3 2 SYSTEM FOR INDUSTRIAL APPLICATION 6 4 CONCEPT FOR CONTROL OF STRAIN GENERATION IN SERIES PRODUCTION OF FUEL LINES 6 4 1 CONCEPT DESCRIPTION 6 4 2 BARRIERS TO IMPLEMENATION OF THE CONCEPT SUMMARY, CONCLUSIONS AND OUTLOOK 7 1 POTENTIAL OF SPECKLE INTERFEROMETRY FOR EVALUATION OF HIGH PRESSURE COMPONENTS 7 2 EVALUATION OF THE AUTOFRETTAGE PROCESS EFFECTS IN COMPONENTS WITH COMPLEX GEOMETRIES 7 3 INFLUENCE OF THE PRESSURE HOLDING TIME ON STRAIN GENERATION DURING THE AUTOFRETTAGE PROCESS 7 4 SPECKLE INTERFEROMETRY AS A QUALITY CONTROL TOOL IN THE SERIES PRODUCTION OF FUEL LINES NOMENCLATURE REFERENCES