1. The Otto Engine Alexander Sitt 28 March 2009

2. Background Nikolaus Otto, German engineer Born in Holzhausen an de Haide, 1832 Developed the first functioning 4-stroke engine (Otto cycle) http://www.erfinder.at/tag-der- erfinder/de/images/Nikolaus%20Otto.jpg

3. Engine One of the first successful gasoline powered engine, produced in 1876 Uses a spark plug to ignite compressed fuel/air mixture Regulated by a centrifugal governor controlling intake of fuel Water jacket around cylinder for cooling http://www.ohtm.org/eng_otto.html

4. Otto Cycle (4-stroke) Strokes: –Intake of fuel/air mix (constant pressure) –Compression mix (adiabatic) –Power ignition (constant pressure) –Exhaust forced out (adiabatic) http://www.btnturbopartner.com/images/pic_4stroke.gif

5. Applications http://www.motocrossafrica.co.uk/Aprilia%20RS. JPG http://mkiiisupra.homeip.net/images/1j z/1jzgteb.jpg http://www.rosalsrentals.co m/images/hondaGX35.jpg

6. Questions Title: Otto Engine By: Alexander Sitt http://images.brighthub.com/AB/6/AB63A4423864E7CBE 847B30F58A06EF6DADD3605_large.jpg

7. Works Cited http://library.thinkquest.org/C006011/engli sh/sites/ottomotor.php3?v=2 http://inventors.about.com/library/inventors /blotto.htm http://www.brighthub.com/engineering/mec hanical/articles/4127.aspx http://www.grc.nasa.gov/WWW/K- 12/airplane/otto.html