Informative Speech on Egr, Dpf, Scr Emission Systems Essay Example

lowers the temperature of the oxygen being burned which reduces the amount of smog gases produced. Master Technicians Service Conference) Transition: Although the EGR worked well emission standards again changed in 2007. II. Diesel Particulate Filter or DPF is also part of the exhaust system and works together with the EGR. A. The DPF has a filter that collects carbon from exhaust and is effective from 85 – 100% in cleaning carbon from the exhaust. (Dane, 2010) B. After the filter becomes clogged there is a computer system in the vehicle that increases the temperature of the exhaust and burns off the carbon from the filter. (Gryglak, 2009) C.

The EGR and DPF system worked great together reducing emissions but lowered the efficiency of the engines. (Phil Romba) Transition/ internal summary: Now we’ve looked at two systems helping diesel engines run clean, I will now introduce the 2010 system, the SCR. III. Selective catalyst reduction or SCR is the most recent system to be used to reduce smog gases from exiting the exhaust. A. This is the most advanced system in which a catalyst of urea, which is an organic chemical, is injected into a chamber with exhaust gasses which reduces the smog gases down into nitrogen and water. Gryglak, 2009) B. It has been proven to reduce emissions of smog by 70 -95%. (Dane, 2010) C. The only downfall is that urea needs to be carried in a tank on the vehicle and refilled every time the oil is changed. Transition: In conclusion we now know the three technologies developed since 2003, the EGR, DPF, and SCR and their effect on lowering emissions. Conclusion I.

When these three systems are used in conjunction together the strain on each on is significantly reduced allowing the diesel engine to operate at its maximum efficiency while still reducing smog emissions significantly.

A. Given that U. S. emissions are going to become even stricter by 2020 (EPA) technological advances by all engine manufactures is going to be seen. B. Domestic and foreign automotive manufactures have collaborated on developing these systems and the EPA has invested millions of dollars into the research and development to make diesel engines run clean and efficient. C. So you may still ask, what does this have to do with me, well let me ask, do you breath? Bibliography Blumberg, Katherin O. "LOW-SULFUR GASOLINE & DIESEL. " Web. 07 Jan. 2012. lt;http://www. unep. org/transport/pcfv/pdf/publowsulfurpaper. pdf>. Dane, John, and Kent J. Voorhees. "Investigation of Nitro-Organic Compounds in Diesel Engine Exhaust. " National Renewable Energy Laboratory (2010). Print. "Emission Standards: USA: California Diesel Risk Reduction Program. " DieselNet: Diesel Emissions Online. Web. 07 Jan. 2012. <http://www. dieselnet. com/standards/us/ca_diesel. php>. Gryglak, Adam. "ALL-NEW FORD-ENGINEERED, FORD-TESTED, FORD-BUILT DIESEL MAXIMIZES 2011 SUPER DUTY'S PRODUCTIVITY | Ford Motor Company Newsroom. Home | Ford Motor Company Newsroom. 31 Aug. 2009. Web. 05 Jan. 2012. ;http://media. ford. com/article_display. cfm? article_id=30879;. Legislation to Authorize the Administrator of the Environmental Protection Agency to Accept, as Part of a Settlement, Diesel Emission Reduction Supplemental Environmental Projects : Report (to Accompany S. 2146). " (2008): 1-4. UWSP Library Forward. Web. 01 Jan. 2012. Romba, Phil. "Light ; Medium Truck Online. " Light & Medium Truck Online | Managing Commercial, Public, Utility, and Telecom Fleets. Web. 07 Jan. 2012. lt;http://lmtruck. com/articles/weeklystory. aspx? storyid=179>. ROY,

REX. "Engine Wars: Gas Vs Diesel. " Popular Mechanics 187. 11 (2010): 50. Military & Government Collection. Web. 7 Jan. 2012. Vehicle Emission Reductions. OECD Publishing, 2003. "1973 Chrysler and Imperial Exhaust Emissions Book from the MasterTechnician's Service Conference (Session 308). " Online Imperial Club (OIC) for Imperial, Chrysler Imperial, and ChryslerNew Yorker Brougham Enthusiasts. Web. 07 Jan. 2012. <http://www. imperialclub. com/Repair/Lit/Master/308/page08. htm>.