SIX-STROKE ENGINEIntroductionThe six-stroke engine is an ingenious invention that has the potential to increase engine efficiency by approximately 30%. As fossil fuels become increasingly expensive to produce and use, many are looking for answers to these problems. The six-stroke engine tries to solve some of these problems by using heat that would normally be lost in the four-stroke engine. It does this by using an additional pump to produce more torque and power. In the graph below, the conventional four-stroke engine is compared to a 6-stroke using a Yamaha TT 500c. ROAD SPEED MPH 4 STROKE RUNNING TIME SECONDS 100 cc FUEL 6 STROKE RUNNING TIME SECONDS 100 cc TO LOAD FUEL RPM In 5TH GEAR % LONGEST RUNNING TIME30 159 216 2000 35.80% 138 184 2500 33%40 107 134 3000 25.20%45 89 101 3500 13% Malcolm Beare, “Six Stroke Engine Theory,” Six Stroke Engine Developments, February 15, 2011, http://www.sixstroke.com/theory. htm.There have been issues with the actual implementation of this technology; however, the science behind this invention is simple and workable. How it works The six-stroke engine is a modified version of a four-stroke engine and works in exactly the same way. The only difference is that 2 more pistons have been added. In both four-stroke and six-stroke engines, fuel is drawn into the piston and then compressed until it explodes, pushing the piston down and providing torque to the car. The remaining gas along with an excessive amount of heat are expelled through the fourth stroke of the piston and released. The difference with the six-stroke engine is that it adds two more processes; instead of instantly releasing the heat and gas, it pumps water into the chamber which is immediately transformed into steam and pushes another piston down... into the center of the paper... the material used is extremely scarce and insufficient. It was only based on a motorcycle and this data should not be applied to cars or even larger vehicles, such as semi-trailers. The six-stroke engine is a design that can be applied at a relatively low price and could result in significant increases in fuel efficiency. BIBLIOGRAPHY Schmitz, Gerhard B. “Six-Stroke Internal Combustion Engine,” April 17, 1990. https://www .google.com/patents/US4917054.Beare, Malcolm. "Theory of the Six-Stroke Engine". Six-Stroke Engine Developments, February 15, 2011. http://www.sixstroke.com/theory.htm.James, Matt. “Gasoline, hybrid steam engine?” EcoGeek.org, May 15, 2007. http://www.ecogeek.org/component/content/article/664.Lyons, Pete. "Inside Bruce Crower's Six-Stroke Engine." Autoweek, February 27, 2006. http://www.autoweek.com/article/20060227/free/302270007.