History of the Diesel engine.

History of the Diesel engine.
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History of the Diesel engine.

History of the Diesel Engine.

Global market demand for all types of diesel engines is expected to rise through 2025. In other words, diesel engines aren't going anywhere anytime soon. But how long have they been around? Who invented the diesel engine? If you've ever wondered about the history of the diesel engine, we're about to tell you.

Rudolf's childhood and education

Rudolf Diesel was born in the house Rue Notre Dame de Nazareth No. 38 in Paris, France in 1858 the second of three children of Elise (née Strobel) and Theodor Diesel. His parents were Bavarian immigrants living in Paris. Theodor Diesel, bound books by trade, left his home town of Augsburs, Bavaria, in 1848. He met his wife, a daughter of a Nuremberg merchant, in Paris in 1855 and became a leather goods manufacturer there.

Only few weeks after his birth, Rudolf was given away to a Vincennes farmer family, where he spent his first nine months. When he was returned to his family, they moved into the flat 49 in the Rue de la Fontaine-au-Roi. At the time, the Diesel family suffered from financial difficulties, thus young Rudolf Diesel had to work in his father's workshop and deliver leather goods to customers using a barrow. He attended a Protestant-French school and soon became interested in social questions and technology. Being a very good student, 12-year-old Diesel received the Société pour l'Instruction Elémentaire bronze medal and had plans to enter Ecole Primaire Supérieure in 1870.

At the outbreak of the Franco-Prussian War the same year, his family was forced to leave, as were many other Germans. They settled in London, England, where Diesel attended an English school. Before the war's end, however, Diesel's mother sent 12-year-old Rudolf to Augsburg to live with his aunt and uncle, Barbara and Christoph Barnickel, to become fluent in German and to visit the Königliche Kreis-Gewerbeschule (Royal County Vocational College), where his uncle taught mathematics.

At the age of 14, Diesel wrote a letter to his parents saying that he wanted to become an engineer. After finishing his basic education at the top of his class in 1873, he enrolled at the newly founded Industrial School of Augsburg. Two years later, he received a merit scholarship from the Royal Bavarian Polytechnic of Munich, which he accepted against the wishes of his parents, who would rather have seen him start to work.

Rudolf's adult education, family, and career

One of Diesel's professors in Munich was Carl von Linde . Diesel was unable to graduate with his class in July 1879 because he fell ill with typhoid fever. While waiting for the next examination date, he gained practical engineering experience at the Sulzer Brothers Machine Works in Winterthur, Switzerland. Diesel graduated in January 1880 with highest academic honors and returned to Paris, where he assisted his former Munich professor, Carl von Linde, with the design and construction of a modern refrigeration and ice plant. Diesel became the director of the plant one year later.

In 1883, Diesel married Martha Flasche, and continued to work for Linde, gaining numerous patents in both Germany and France.

In early 1890, Diesel moved to Berlin, Germany with his wife and children, Rudolf Jr, Heddy, and Eugen, to assume management of Linde's corporate research and development department and to join several other corporate boards there. As he was not allowed to use the patents he developed while an employee of Linde's for his own purposes, he expanded beyond the field of refrigeration. He first worked with steam, his research into thermal efficiency and fuel efficiency leading him to build a steam engine using ammonia vapor. During tests, however, the engine exploded and almost killed him. His research into high compression cylinder pressures tested the strength of iron and steel cylinder heads. One exploded during a run in. He spent many months in a hospital, followed by health and eyesight problems.

Ever since attending lectures of Carl von Linde, Diesel intended designing an internal combustion engine that could approach the maximum theoretical thermal efficiency of the Carnot cycle. He worked on this idea for several years, and in 1892, he considered his theory to be completed. The same year, Diesel was given the German patent DRP 67207. In 1893, he published a treatise entitled "Theory and Construction of a Rational Heat-engine to Replace the Stem Engine and the Combustion Engines Known Today", that he had been working on since early 1892. This treatise formed the basis for his work on and invention of the Diesel engine. By summer 1893, Diesel had realized that his initial theory was erroneous, which led him to file another patent application for the corrected theory in 1893.

Diesel understood thermodynamics and the theoretical and practical constraints on fuel efficiency. He knew that as much as 90% of the energy available in the fuel is wasted in a steam engine. His work in engine design was driven by the goal of much higher efficiency ratios. In his engine, fuel was injected at the end of the compression stroke and was ignited by the high temperature resulting from the compression. From 1893 to 1897, Heinrich von Buz, director of MAN SE in Augsburg, gave Rudolf Diesel the opportunity to test and develop his ideas.

The first successful Diesel engine Motor 250/400 was officially tested in 1897 and is now on display at the German Technical Museum in Munich.

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One place where Diesel found success was with the military because diesel fuel was heavier and was less likely to explode. In 1904, the French army started using diesel engines in their submarines.

Contract of a lifetime, and his disappearance

On the evening of 29 September 1913, Diesel boarded the GER steamer SSDresden in Antwerp on his way to a meeting of the Consolidated Diesel Manufacturing company in London, England. He took dinner on board the ship and then retired to his cabin at about 10 p.m., leaving word to be called the next morning at 6:15 a.m.; but he was never seen alive again. In the morning his cabin was empty and his bed had not been slept in, although his nightshirt was neatly laid out and his watch had been left where it could be seen from the bed. His hat and neatly folded overcoat were discovered beneath the afterdeck railing.

Ten days later, the crew of the Dutch boat Coertzen came upon the corpse of a man floating in the North Sea near Norway. The body was in such an advanced state of decomposition that it was unrecognizable, and they did not bring it aboard. Instead, the crew retrieved personal items (pill case, wallet, I.D. Card, pocket knife, eyeglass case) from the clothing of the dead man, and returned the body to the sea. On 13 October, these items were identified by Rudolf's son, Eugen Diesel, as belonging to his father. On 14 October 1913 it was reported that Diesel's body was found at the mouth of the Scheldt by a boatman, but he was forced to throw it overboard because of heavy weather.

There are various theories to explain Diesel's death. Certain people, such as his biographer Grosser, and Hans L. Sittauer (both in 1978) argue that Rudolf Diesel committed suicide. Another line of thought suggests that he was murdered, given his refusal to grant the German forces the exclusive rights to using his invention; indeed, Diesel boarded the SS Dresden with the intent of meeting with representatives of the British Royal Navy to discuss the possibility of powering British submarines by Diesel engine – he never made it ashore. Yet, evidence is limited for all explanations, and his disappearance and death remain unsolved.

Shortly after Diesel's disappearance, his wife Martha opened a bag that her husband had given to her just before his ill-fated voyage, with directions that it should not be opened until the following week. She discovered 200,000 German marks in cash (US$1.2 million today) and a number of financial statements indicating that their bank accounts were virtually empty. In a diary Diesel brought with him on the ship, for the date 29 September 1913, a cross was drawn, possibly indicating death.

Posthumously Diesel was inducted into the Automotive Hall of Fame in 1978.

Future of the Diesel Engine after Rudolf's passing

After Diesel's death, his engine underwent much development and became a very important replacement for the steam piston engine in many applications. Because the Diesel engine required a heavier, more robust construction than a gasoline engine, it saw limited use in aviation. However, the Diesel engine became widespread in many other applications, such as stationary engines, agricultural machines and off-highway machinery in general, submarines, ships, and much later, locomotives, trucks, and in modern automobiles.

The Diesel engine has the benefit of running more fuel-efficiently than gasoline engines due to much higher compression ratios and longer duration of combustion, which means the temperature rises more slowly, allowing more heat to be converted to mechanical work.

Diesel was interested in using coal dust or vegetable oil as fuel, and in fact, his engine was run on peanut oil. Although these fuels were not immediately popular, during 2008 rises in fuel prices, coupled with concerns about oil reserves, have led to the more widespread use of vegetable oil and bio-diesel.

The primary fuel used in diesel engines is the eponymous diesel fuel, derived from the refinement of crude oil. Diesel is safer to store than gasoline, because its flash point is approximately 175 °F (79.4 °C) higher, and it will not explode.

The history of the diesel engine is full of innovation, unfortunately Rudolph Diesel wasn't around to see the full scope of his invention. Diesel engines have changed the way the world works as they allow for bigger boats, more powerful engines, and more trading overseas.

There are diesel engine lovers worldwide these days. If you happen to be one of those enthusiasts, come check us out at www.dieselfiltersonline.com

We have everything from OEM replacement filters at deep discounts, to complete turbo upgrades and boost managment systems.

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