1. Use of Biodiesel in Diesel Engines Jeffry N Curtis

2. Photo Courtesy Bosch 2007

3. Review: Four Stroke Cycle http://auto.howstuffworks.com/diesel1.htm Wartsila Diesel Cycle EGR

4. Graphic Courtesy Bosch 2007

5. Common Rail Components

6. Tolerances and Pressures 2100 bar = 30,000+ psi Injection Pressures.002 mm = 7.87401575 × 10 -5 = 2 microns (  m) Needle Valve Clearance.06 mm = 0.0025” = 60 microns (  m) Human Hair Diameter

8. Photo by Jeff Curtis © 2007

9. Photo by Jeff Curtis © 2009

11. Photo Courtesy Bosch 2007

12. Spray Pattern

13. Photo Courtesy Bosch 2007

16. Fuel System Details Cummins ISB HPCR

17. Biodiesel Emissions: B20 Biodiesel Compared to Petroleum Diesel Carbon Dioxide (CO 2 )-16.0% Particulate Matter (PM)-18.0% Unburned Hydrocarbons (HC)-11.0% NOx (Oxides of Nitrogen)+1% http://www.bcbiofleet.ca/introtobiodiesel.htm

18. Multiple Injection Events/Firing Stroke

19. EGR Oxidation Type Catalytic Converter w/Particulate Filter Selective Catalytic Reduction (SCR)

20. Further Concerns/Discussion EGR The “NO x ” Question The “NO x ” Question The “Bosch” Timeline Are We Ready For It?

21. Jeffry N. Curtis, Instructor Diesel Equipment Technology Bellingham Technical College jcurtis@btc.ctc.edu http://diesel.btc.ctc.edu/biodiesel.htm