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Prepared by: Joe Burton Dept. of Electrical and Computer Engineering Utah State University

ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Fuel Injector (actuator). Prepared by: Joe Burton Dept. of Electrical and Computer Engineering Utah State University. 3/7/2012. Outline . Reference list To probe further Major applications

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Prepared by: Joe Burton Dept. of Electrical and Computer Engineering Utah State University

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  1. ECE5320 MechatronicsAssignment#01: Literature Survey on Sensors and Actuators Topic: Fuel Injector (actuator) Prepared by: Joe Burton Dept. of Electrical and Computer Engineering Utah State University 3/7/2012

  2. Outline • Reference list • To probe further • Major applications • Basic working principle illustrated • A typical sample configuration in application (application notes) • Major specifications • Limitations • And many more relevant issues in applications (such as, how to choose, cost information, where to buy etc.) ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  3. Reference list • www.mmcompsys.com/product.php?id=146 • http://delphi.com/shared/pdf/ppd/pwrtrn/direct-acting-light-duty-diesel-crs.pdf • http://www.pprep.com/fuel_injector_work.htm • http://www.globaldensoproducts.com/em/gem/fis/injector.html • http://www.fuelinjectorsoutlet.com/gas-fuel-injectors/land-rover-fuel-injectors/land-rover-defender-110-fuel-injectors/ ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  4. To explore further (survival pointers of web references etc) • Heated tip fuel injectors to help lower emissions • http://delphi.com/shared/pdf/ppd/pwrtrn/multec-3point5-heated-tip-port-fuel-injector.pdf • Different builds of injectors • servo verses solenoid http://delphi.com/manufacturers/auto/powertrain/diesel/ ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  5. Major applications • The main application of the fuel injector is in the management system of internal combustion engines. • The fuel injector controls the flow of the fuel into the combustion area. • The engines vary in size and use several different types of fuels. • Some types of fuels are: diesel, natural gas, propane, automotive, and many more. ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  6. ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  7. Injectors come in a variety of sizes • This manufacture uses the color of band to indicate the flow rate and nozzle design. • Shown: Weber IWP069 “Pico" top feed injector. It is a production component with a single hole ‘cone’ spray pattern and a wide range of applications for engines typically up to 85bhp per cylinder ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  8. ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  9. Basic working principle illustrated ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  10. Working Principle continued • The injector has power from the time the system is initialized, by turning the key to the on position • The Electronic control module (ECM), controls the ground side on the circuit to actuate the solenoid of the injector • The solenoid pulls the pinnacle back to allow the fuel be released through the nozzle • This is done several times a minute, based on sensor feedback and ECM programming ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  11. Structure of C60 Injector ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  12. Nozzle design effects spray ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  13. Spray depends on number of outlet holes ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  14. Typical components of a Diesel system ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  15. A typical sample configuration in application ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  16. Sample of Major specifications ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  17. Limitations • The injectors are limited to a operating range • The operating range is based on: • Fuel pressure • Nozzle design • Overall Size ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  18. Limitations • Also limited by emission regulations Different injector designs for different applications • Race application • Off road close course: allowed to have an injector that can flow more fuel for a richer air fuel mixture • Street application • Restricted to local EPA laws: exhaust gases must meet regulation air fuel mixture ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  19. Cost ? • Cost varies with application and manufacture • The manufacture lowers cost by making out of plastics instead of metals. A lower cost may not work as long as a higher cost. • Range of cost: • $34 to $299 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  20. Where to Purchase? • Replacement for vehicle • Local Automotive parts stores • Upgrade to race application • On-line • Custom build • Major manufactures like: • Delphi • Denso • Weber ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

  21. Which is the Best ? • This question depends on the application. • Race application : looking for high volume • Street : good atomization, low emission • Diesel : works well with high pressure ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

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