![]() The piezo injector however was found to be strongly influenced by the back-pressure. For engine realistic back-pressures, the multi-hole injector was found to be back-pressure independent. For the smallest possible injections, the piezo-actuated injector was found to be superior since it can inject very small amounts of fuel very accurately with little fuel pressure dependency. Measurements with high signal quality were not possible for back-pressures lower than 0.5 MPa. Signal quality was found to be dependent on both hardware and software settings, especially the cut-off frequency of the low-pass filter. The varied hardware/software parameters were injector protrusion, upstream fuel pressure condition and the cut-off frequency of the software's low-pass filter. The varied operating parameters were fuel pressure, back-pressure, electrical pulse width, single/double injection and injection frequency. Test bench CR-Test-4E is produced in the basic version for testing injectors and Common-Rail pumps with an electronic measuring unit.Time-resolved mass injection rates of an outward opening piezo-actuated and a solenoid actuated multi-hole GDI injector were measured to investigate (1) the influence of both hardware and software settings and (2) the influence on the injection rates from a wide range of operational parameters and (3) discuss limitations and issues with this measurement technique. Manometer for measuring the supply pressure of the test pump Manometer for measuring the supply pressure by a bench feed pump Test fluid supply pump capacity if Р= 0,3МPa Number of measuring sensors in test fluid flowmeter (FMDE-500 ) Tolerance of flow measurement 6-500 l/hour (FMDE-500) ![]() Measuring speed range of the pump measuring unit (FMDE-500) Test fluid temperature control for flowmeters (FMDE-500)įlow temperature measurement tolerance, no more than (FMDE-500) Test fluid temperature control for pumps (FMDE-500) Measurement tolerance (trucks) 0,15 mm3 - 400 mm3 Measuring speed of injector measuring unit Number of measuring sensors inside the injector measuring unit ** System pressure measurement in a range Test fluid pressure setting of the test liquid in a range Test fluid temperature control in a rangeĬalibration fluid pressure electronic measurement inside Rail in a range ![]() Pulsing duration of the injectors opening Pulsing frequency of the injectors opening Supply of valves in the measuring unit of injectors Number of simultaneously tested injectors Test bench includes a software with built-in test plans. Test bench is equipped with an electronic measuring system. At the request of the customer,there is possibility to increase the working pressure to 2200 bar. The operating pressure of the test is up to 1800 bar. The test bench allows checking the following equipment of the COMMON RAIL system: BOSCH, DENSO, DELPHI injectors, (SIEMENS optional), BOSCH, DENSO, DELPHI, SIEMENS pumps (CP1, CP2, CP3, HP2, HP3, DFP1, DFP3, DFP6, HP3, HP4), regulators and pressure sensors. Test bench for Common-Rail pumps and injectors Tools for removing injectors and glow plugsĬR-Test-4E.Auto scanners and oscilloscopes for vehicle diagnostics.Equipment for diagnostics of Diesel Fuel Equipment and other engine systems.Equipment for grinding and lapping washers.Adjusting shims for Siemens Piezo CR injectors.Control circuit boards, electronic components.Tools for repair high pressure fuel pumps.Equipment for testing high pressure fuel pumps.High pressure fuel pumps VE/ VP / P / PE.Equipment and tools for test and repair HEUI unit injectors.Tools for repair unit injectors and PLD pump sections.Equipment for testing unit injectors and PLD sections.Clamp adapters and accessories for the Dorpat and CAM-BOX2.Clamp adapters and accessories for CAM-BOX 1.Test benches and equipment for testing unit injectors and PLD sections.Additional equipment machines for repair fuel equipment.Equipment and tools for repair of Common Rail pumps.Equipment for testing of Common Rail pumps.Equipment and tools for repairing Common Rail PIEZO injectors.Machines and equipment for repair Common Rail injectors.Equipment for testing Common Rail injectors.Additional equipment for workbenches Common Rail.Test benches and kits for testing pumps and injectors of the Common Rail system.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |