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Transcript

Jet Engine and Internal Combustion Engine

By: Juan Alvarez and Mariano Crivello

Jet Engines

Introduction: Jet Engines

Conclusion: Jet Engines

  • Many modern planes use jet engines
  • Also known as gas turbines
  • In the 1700s, Sir Isaac Newton theorized that an explosion focused to the rear of something could possibly push that thing forward
  • In August of 1939, the German Heinkel He 178 flew using a gas turbine engine making history by being the first plane to fly using a turbo jet engine
  • In 1930, a british pilot named Frank Whitte designed and patented the very first turbo jet engine
  • His design, named the Whitte engine, was used in flight in may of 1941
  • The first american jet engine for the US Army Air Force was made by General Electric and was called the XP-59A experimental aircraft

Combustion Engine

Gasoline engines used to be as inefficient as steam engines. George Brayton, an American engineer, had developed a two-stroke kerosene engine in 1873, but it was too large and too slow to be commercially successful.The first successful two-stroke engine was completed in 1878 by Sir Dougald Clerk, which remains in use today. This two-stoke engine was simplified by Joseph Day in 1891. Internal combustion engines are now used for car, planes, lawn mowers, etc.

Combustion Engine

Conclusion

The combustion engines let people transport in an entirely new fashion. What thought to be impossible, flying through the sky, now became possible; or ridding a bicycle with a motor.

The first person to experiment with an internal-combustion engine was the Dutch physicist, Christian Huygens, in about 1680. No effective gasoline-powered engine was developed until 1859, when the French engineer J. J. Lenoir built a double-acting, spark-ignition engine that could be operated continuously. Gasoline was first discovered in 1856 which revolutionized the way people used transportation. In 1862, French scientist, Alphonse Beau de Rochas, patented but did not build a four-stroke engine; sixteen years later(1878), Nikolaus A. Otto built a successful four-stroke engine, which became known as the "Otto cycle."

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