SIX-STROKE ENGINE Introduction The six-stroke engine is an ingenious invention that has the potential to increase engine efficiency by around 30 percent. As fossil fuels are increasingly more expensive to produce and utilize, many have been seeking for answers to these problems. The six-stroke engine seeks to solve some of these problems by exploiting heat that would normally be lost in the four-stroke engine. It does this by utilizing an extra pump to produce more torque and power. In the following graph, the conventional four-stoke is compared to a 6-stroke using a Yamaha TT 500c. ROAD SPEED MPH 4STROKE RUN TIME SECONDS 100cc FUEL 6STROKE RUN TIME SECONDS 100cc FUEL LOADED RPM In 5th GEAR % LONGER RUN TIME 30 159 216 2000 35.80% 35 138 184 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 over actual implementation of this technology; however, the science behind this invention is simple and viable. How It Works The six-stroke engine is a modified version of a four-stroke and works in the exact same manner. The only difference is that 2 more pistons have been added on. In both the four and six-stroke engine, fuel is pulled into the piston and then is compressed until it explodes, which forces the piston down and gives the car torque. The remaining gas along with excessive amounts of heat are pushed out through the fourth piston stroke and released. The difference with the six-stroke engine is that it adds on two more processes; instead of instantly releasing the heat and gas, it pumps water into the chamber which is instantly turned into steam and forces another piston down ... ... middle of paper ... ... was utilized is extremely poor and insufficient. It relied only upon a motorcycle and this data should not be applied to cars and neither to larger vehicles, such as semi-trucks. The six-stroke engine is a design that can be applied at a relatively low price and could result in dramatic fuel efficiency increases. BIBLIOGRAPHY Schmitz, Gerhard B. “Six-Stroke Internal Combustion Engine,” April 17, 1990. https://www.google.com/patents/US4917054. Beare, Malcolm. “Six Stroke Engine Theory.” Six Stroke Engine Developments, February 15, 2011. http://www.sixstroke.com/theory.htm. James, Matt. “Gasoline, Steam Engine Hybrid?” 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.
Snowmachine engines come in two types, two-stroke and four-stroke. Two stroke engines are simpler, lighter, and cheaper to manufacture then four-stroke engines, "plus two-stroke engines also have the potential to pack about twice the power into the same space because there are twice as many power strokes per revolution than in four-strokes". There are other advantages two-stroke engines have which include not having valves which lowers weight and eases construction.
My focus on this project is how one of these engines is “rebuilt”, and how can they be changed (from stock) to create more power or be more efficient, through what is called “porting”. I chose this topic because when I was introduced to the rotary engine last year when I bought my second car, I immediately fell in love with the idea. My cars engine was “blown”
The purpose of this report is to compare the eight-cylinder Camaro to the six-cylinder Camaro to see which one is more ...
The piston is pushed upward by the flywheel's momentum, compressing the air/fuel mix. 3. Combustion: As the piston reaches the top of its stroke or TDC, the spark plug fires, igniting the mixture. Due to the high compression of this mixture, it is very volatile and it explodes when the spark is introduced. This pushes the piston downward and produces power.
The first type of forced induction system is the turbocharger. A turbocharger is essentially the same as a supercharger, except where they get their power from. A turbocharger is powered by exhaust gasses that have been produced by the engine and are forcing their way through the turbofold, or the exhaust manifold that the turbo is housed in. The exhaust gas pushes its way through the turbocharger and hit the turbine wheel. Vehicles that usually find the need for a turbocharger from the factory are four or six cylinder engines. Standard in most European vehicles such as Mercedes, Audi, Volkswagen and Volvo. These cars are known for their small displacement motors, and great gas efficiency, due to this setup...
Driven in large part by global initiatives and the potential for stringent regulations, the past decade or two has seen a marked increase in the importance of improvements with respect to environmental standards, including emissions and increases in fuel economy. In 2002, Cummins Emissions Solutions was launched after the need was identified for an emission solution that would help engines meet future regulations. In 2006, Cummins pioneered a hybrid diesel-electric bus which reduced fuel consumption and greenhouse gasses by more than 30 percent and me...
“Table 4-23: Average Fuel Efficiency of U.S. Passenger Cars and Light Trucks”, Research and Innovative Technology Administration, N.p., 6 April 2011, n.d. .
Who would like to drive a car that gets worse gas mileage, a car that has less torque, and car that is all round mediocre? Now who would like to drive a car with much better gas mileage, higher torque, and a great, reliable engine? The obvious choice is the latter, a car with a diesel engine. Diesel and Gasoline engines have been each other’s competition since the 1930’s. There is one main mechanical difference between these two engines; a gasoline engine ignites the gasoline with spark plugs, a lighter of sorts, and the diesel engine ignites the diesel by compressing is so much that it spontaneously combusts. Although there are a few other types of engines now, such as hybrid or electric, diesel is still all round superior to these. I have
It also gains a stylish rotary shifter and a pair of powerful engines. The 1st engine is a 3.6L, V6 engine that produces 260 lb-ft of torque and 290 hp. The second option is a 5.7-liter HEMI V-8 that produces 390 lb-ft of torque and 360 hp. HEMI technology is the latest fuel saving technology that is selected in the Eco mode.
After Diesel’s death, the diesel engine underwent much development and became a very important replacement for the steam piston engine in many applications. Because the diesel engine required heavier, more robust construction than a gasoline engine, it was not widely used in aviation. The diesel engine became widespread in many other applications, however, such as a stationary engines, submarines, ships, and much later, locomotives, trucks, and in modern automobiles. Diesel engines are most often found in applications where a high torque requirements and low RPM requirements exist.
85% equipments use single-cylinder diesel engines, while the rest use multi-cylinder ones. In the market of multi-cylinder diesel the competition is less intense because of excessive demand. The prospect is much more promising. Longxi has a certain competitive advantage in this market, resulting from its popular product such as SL2100.
A supercharged 5.0-liter V8 engine with 510 horsepower and 461 pound-feet of torque is also available. This model has a 0-60 mph time of just 5.1 seconds. The top-of-the-range SVAutobiography model has a version of the engine making 550 horsepower and 502 pound-feet of torque. All V8-equipped models make an EPA-rated 13 or 14 mpg in the city and 19 mpg on the highway.
In my undergraduate years, I have acquired a strong background in the fundamentals of basic mechanical engineering, having studied subjects such as Strength of Materials, Thermodynamics, Fluid Mechanics, Heat and Mass Transfer, Design of Machine Elements and Automobile Engineering. Whilst pursuing my diploma & degree courses, my interest for Automotive Engineering grew even more having learnt more on the different types of internal combustion engines, their configuration and importance. However, what I lacked was a practical understanding on these core areas of Automotive Engineering. To gain a better understandi...
So a new engine was created by a German Engineer Felix Wankel (patented the design in 1929 and completed a working prototype in 1957 in collaboration with NSU Motorenwerke, a German automobile manufacturer). Wankel engine is an internal combustion engine which uses an eccentric rotary design to convert the combustion pressure into rotary motion. Since the rotor moves in a circular way the vibration caused is very less resulting in ultra smooth power production. High
This along with the lighter construction of a two-stroke makes it the preferred motor used in small vehicles and tools (Two Stroke Engine). A two-stroke engine is operated by first drawing the mixture of fuel and air into the chamber by the vacuum caused by the upward stroke of the piston. During the downward piston stroke, the poppet valve is forced closed due to the increased pressure within the chamber. The mixture is compressed in the chamber throughout the stroke. As the stroke ends, the intake port is exposed allowing the mixture to escape into the main cylinder, expelling the exhaust gasses in the process and some of the fuel mixture as well. Momentum then causes the piston to rise, compressing the mixture as another stroke is beginning. Once the stroke reaches its peak, the spark plug will ignite the mixture causing the fuel to expand driving the piston down thus completing the cycle while additionally initiating a new