The Wankel Engine
The Wankel engine is a type of internal combustion engine that is different than any other design. Even though it is much less common than the everyday gasoline engine, it is a much more practical design. It has proven to achieve higher horse power ratings while also having better efficiency than other gasoline engines of similar displacement.
The Wankel Engine’s efficiency comes from the design where instead of having multiple pistons doing one of the four strokes of a four stroke engine (intake, compression, combustion, exhaust) at a time, it has a single triangular shaped rotor doing all four at once. And because the rotor rotates in a circular pattern there in no stopping to change the direction of the rotor unlike pistons which have to change directions with every stroke, this also makes the Wankel Engine smoother and better balanced than traditional internal combustion engines. And also because there is usually only one or two rotors, depending on the engine, they are much more compact than the traditional inline or v-block designs.
How this marvel of engineering works is the rotor rides on an offset in the crankshaft, similar to a piston nand connecting rod assembly, and is rotated in an oval shaped case with ports for intake, exhaust and spark plugs. Incorporated into the rotor is a ring gear which had another gear that is stationary in the center, this planetary gear set is what keeps the rotor in time with the rest of the engine. The rotor creates three sealed areas where the different strokes will take place simultaneously, these three areas are sealed by strip of metal called the Apex seal which have the same function as the piston rings in a traditional internal combustion engine. The intake and ...
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...agner, a local Nazi party leader, Felix Wankel was arrested and imprisoned in 1933 when the Nazi party took control of Germany. But soon after he was pardoned by Wilhelm Keppler who was an old friend of Wankel’s and also Adolf Hitler’s lead economic advisor. With the help of Wilhelm Keppler, Wankel was given funding’s for his own workshop and research center in Lindau to design and produce rotary valves and seals for the German Air Force’s aircraft and the German Navy’s torpedos, but all this ended with the war. In 1957 Felix Wankel produced the first working model of the Wankel Engine, only producing 21 horsepower it was still a great achievement.
And then in 1960 he was able to produce and start selling the first practical Wankel Engine, the KKM 250, which was used in the NSU Spider car. Felix Wankel died on October 8th 1988 in Heidelberg Germany at the age of 86.
Anthony Fokker was the creator of the Eindecker series and many other aircrafts after. Fokker was a Dutchman who originally looked to learn how to manufacturer cars but decided to learn more about aviation. His schooling occurred in Germany and by the end of it he became a pilot and manufacturer. Before World War One broke out, Fokker started his own, small aircraft factory just outside Berlin.4
The Wankel rotary engine named after the designer, Felix Wankel, was engineered in the early 1930’s. The rotary engine was unlike the conventional four stroke internal combustion engines and lacked the need for pistons, valves and camshafts. With only three moving parts involved in the design, this engine showed great promise in reliability and efficiency. The first Wankel rotary model was shown in 1960, not as an engine, but as a pump drive. Instead of the very complicated system involved in a conventional reciprocating piston engine, the wankel engine incorporated triangular “rotors” (see figure 1) that rotate within an epitrochoidal chamber around an eccentric shaft. Not only is this engine much more simple (only 3 moving parts rather
For hundreds of years society has been divided into various economic, power, and social classes that represent the worth of individuals. Often there are three social classes depicted, the most common being: upper, middle, and lower class. Social status has become an essential part in the way mankind treats one another. The social class system in Watty Piper’s The Little Engine That Could can be analyzed through the conventional symbolism of color used to illustrate a small train’s journey to the other side of the mountain.
A direct current in a set of windings creates a polar magnetic field. A torque acts on the rotor due to its relation to the external magnetic field. Just as the magnetic field of the rotor becomes fully aligned with the external magnetic field, the direction of the current in the windings on the armature reverses, thereby reversing the polarity of the rotor's electromagnetic field. A torque is once again exerted on the rotor, and it continues spinning.
The helicopter was invented by Igor Sikorsky. Igor Sikorsky was born May 25, 1989 in the Kiev, Russian Empire. Igor’s father’s name was Ivan Alexis Sikorsky and his profession was a psychiatrist. His mother’s name was Zinaida Stepanovna Temryuk-Cherkasova Sikorskaya and she was a physician. Igor married Olga Fyodorovna Simkovitch had one child with her and then they got a divorce. Igor then married Elisabeth Semion in 1924 and they had 4 children together. Igor formed an interest in aviation when he was twelve years old. He also constructed a small rubber helicopter at age twelve and he constructed and mini helicopter that was powered by a rubber band. Igor was a good student in school, and graduated from the naval college in St. Petersburg. Igor attended the University Of National Technical University Of Ukraine. Igor then moved to the United States for work opportunities. Igor found a job at the United Aircraft Corporation in 1928 which was the same year Igor became a United States citizen. While working he invented many different kinds of helicopters, which included a four engine helicopter called the S-40 which Igor named “The American Clipper” in 1931. In 1935 Igor released the S-42 and named it “The Clipper”. Igor retired but still advised his aviation company. Igor won many awards in both Russia and the United States. On October 26, 1972 Igor Sikorsky passed away in Easton Connecticut at ag...
Science and Technology of World War II The WWII National Museum n.d. [Web] 22 February
Lohner. He installed one of his engines on a Lohner and showed it in the Paris
“The Fuel & Engine.” Car Bibles. N.p., 15 Dec. 2013. Web. 23 Feb. 2014. .
When the internal combustion engine was created in the early 1900’s, many departments began to turn away from the steam driven apparatuses that were currently in service. There was one flaw with these new machines though, it had to have two engines to operate
Industry experts dispel these myths saying today's diesel engines are greatly improved -- running quietly and not producing odors or smoke.
The engine block is known to be the largest piece of metal in a car and also one of the most important part of the engine in which all other components such as the cylinders and pistons are fitted into it and also it contains small holes which act as passage for circulating fluid coolant around the engine to regulate/control the engines temperature. The engine block is where the combustion energy is then transmitted to mechanical energy by the rotation of the crank shafts which then cause the up and down rotation of the pistons which drives the propeller/transmission system that moves the car. In previous engine block models of cars, most were made of iron material, but nowadays engine blocks are manufactured from lightweight aluminum alloy materials to reduce the weight of the car which contributes in good performance (This is mainly found in sports cars), also the cars which have aluminum engine blocks consumes less fuel by producing less emission than those which have iron engine blocks .But in general view ,most of the cars use iron engine blocks because they are cheap...
Dodge want to make a diesel engine that was light still had power and also great fuel economy
In the future the automotive industries will need alternative fuel sources, in turn that means they will need alternative engines in their automobiles. The engines found in their cars will have to be changed to fit the new fuels being made. They have many directions in which they can go concerning engine types and fuel types.
Seeing and selling bicycles for twenty-two years must have been boring for Schulte so he did some experimenting with different engines and fitted them into a bicycle frame to make his very own gas powered bicycle. With understudy Mauritz Schulte who also expiremnented with both Fafnir and J.A.Prestwich engines to be fitted into one of the Triumph
The invention of internal combustion engines in the early 19th century has led to the discovery of utilisation of cheap energy that is petroleum and this enabled the world to develop and progress into the modern world today. Humans were able to accomplish more work done with little manual labour, using internal combustion engines powered by fossil fuels. Internal combustion engine are mechanical power devices that convert heat energy to mechanical energy with the combustion process taking place in a system boundary (Rolle, 2005). Among the internal combustion engine invented in the 19th century were the Otto engine, Diesel engine and gas turbine engine. Gas turbine engine is one of the popular engines used today due to its high torque per weight ratio relative to other types of internal combustion engines. As explained by Cengel and Boles (2011), the gas turbine engine works on a 6 stages process, namely air intake, compression, fuel injection, combustion, expansion and exhaust (refer to Figure 1 in Appendix 1).