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1 Beau de Rochas, Alphonse Eugène
SUBJECT AREA: Steam and internal combustion engines[br]b. 1815 Franced. 1893 France[br]French railway engineer, patentee of a four-stroke cycle engine.[br]Renowned more for his ideas on technical matters than his practical deeds, Beau de Rochas was a prolific thinker. Within a few years he proposed a rail tunnel beneath the English Channel, a submarine telegraph, a new kind of drive for canal boats, the use of steel for high-pressure boilers and a method of improving the adhesion of locomotive wheels travelling the Alps.The most notable of Beau de Rochas's ideas occurred in 1862 when he was employed as Ingenieur Attaché to the Central de Chemins. With remarkable foresight, he expressed the theoretical considerations for the cycle of operations for the now widely used four-stroke cycle engine. A French patent of 1862 lapsed with a failure to pay the annuity and thus the proposals for a new motive power lapsed into obscurity. Resurrected some twenty years later, the Beau de Rochas tract figures prominently in patent litigation cases. In 1885, a German court upheld a submission by a German patent lawyer that Otto's four-stroke engine of 1876 infringed the Beau de Rochas patent. It remains a mystery why Beau de Rochas never emerged at any time to defend his claims. In France he is regarded as the inventor of the four-stroke cycle engine.[br]Principal Honours and DistinctionsSociété d'Encouragement pour l'Industrie Nationale, prize of 3000 francs, 1891.Bibliography1885, The Engineer 60:441 (an English translation of the Beau de Rochas tract).Further Reading1938, Bulletin de la Société d'Encouragement pour l'Industrie Nationale 137:209–39. 1962, Document pour l'histoire des techniques Cahier no. 2: pp. 3–42.B.Donkin, 1900, The Gas, Oil and Air Engine, London: p. 467.See also: Langen, EugenKABBiographical history of technology > Beau de Rochas, Alphonse Eugène
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2 Rochas, Alphonse Eugène Beau de
Biographical history of technology > Rochas, Alphonse Eugène Beau de
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3 Otto, Nikolaus August
[br]b. 10 June 1832 Holzhausen, Nassau (now in Germany)d. 26 January 1891 Cologne, Germany[br]German engineer, developer of the four-stroke internal combustion engine.[br]Otto's involvement in internal combustion engines was first prompted by his interest in Lenoir's coal-gas engine of 1860. He built his first engine in 1861; in 1864, Otto's engine came to the attention of Eugen Langen, who arranged for the capital to set up the world's first engine company, N.A.Otto and Company, in Cologne. In 1867 the Otto- Langen free-piston internal combustion engine was exhibited at the Paris Exposition, where it won the gold medal. The company continued to expand, and five years after the Paris triumph its name was changed to the Gasmotoren Fabrik; amongst Otto's colleagues at this time were Gottlieb Daimler and Wilhelm Maybach .Otto is most famous for the development of the four-stroke cycle which was to bear his name. He patented his version of this in 1876, although the principle of the four-stroke cycle had been patented by Alphonse Beau de Rochas fourteen years previously; Otto was the first, however, to put the principle into practice with the "Otto Silent Engine". Many thousands of Otto fourstroke engines had already been built by 1886, when a German patent lawyer successfully claimed that Otto had infringed the Beau de Rochas patent, and Otto's patent was declared invalid.[br]Principal Honours and DistinctionsMédaille d'or, Paris Exposition 1867 (for the Otto-Langen engine).Further Reading1989, History of the Internal Combustion Engine, Detroit: Society of Automotive Engineers.I.McNeil (ed.), 1990, An Encyclopaedia of the History of Technology, London and New York: Routledge, 306–7.IMcN -
4 Steam and internal combustion engines
See also: INDEX BY SUBJECT AREA[br]Giffard, Baptiste Henry JacquesHamilton, Harold LeePorta, Giovanni Battista dellaBiographical history of technology > Steam and internal combustion engines
См. также в других словарях:
Beau de Rochas — (Alphonse) (1815 1893) ingénieur français, inventeur d un cycle thermodynamique à la base du moteur à quatre temps … Encyclopédie Universelle
Beau de Rochas — Alphonse Beau de Rochas Alphonse Eugéne Beau, später Alphonse Beau de Rochas (* 9. April 1815 in Digne; † 27. März 1893 in Vincennes) war ein französischer Eisenbahningenieur und Erfinder. Inhaltsverzeichnis 1 Leben 2 Literatur … Deutsch Wikipedia
Beau de Rochas — Alphonse Eugène Beau Alphonse Beau de Rochas Alphonse Eugène Beau dit Beau de Rochas, 9 avril 1815 à Digne 27 mars 1893 à Vincennes, fut un ingénieur thermodynamicien et lauréat de l institut (Académie des Sciences). Ingénieur … Wikipédia en Français
Beau de Rochas, Alphonse — ▪ French engineer born April 9, 1815, Digne, Fr. died March 27, 1893, Vincennes French engineer who originated the principle of the four stroke internal combustion engine. His achievement lay partly in his emphasizing the previously… … Universalium
Alphonse Beau de Rochas — Alphonse Eugéne Beau, später Alphonse Beau de Rochas (* 9. April 1815 in Digne; † 27. März 1893 in Vincennes) war ein französischer Eisenbahningenieur und Erfinder. Inhaltsverzeichnis … Deutsch Wikipedia
Cycle De Beau De Rochas — Le cycle de Beau de Rochas ou cycle à quatre temps est un cycle thermodynamique théorique. Son principal intérêt pratique réside dans le fait que les moteurs à explosion à allumage commandé, généralement des moteurs à essence tel ceux utilisés… … Wikipédia en Français
Cycle de beau de rochas — Le cycle de Beau de Rochas ou cycle à quatre temps est un cycle thermodynamique théorique. Son principal intérêt pratique réside dans le fait que les moteurs à explosion à allumage commandé, généralement des moteurs à essence tel ceux utilisés… … Wikipédia en Français
Cycle de Beau de Rochas — Le cycle de Beau de Rochas ou cycle à quatre temps est un cycle thermodynamique théorique. Son principal intérêt pratique réside dans le fait que les moteurs à combustion interne à allumage commandé, généralement des moteurs à essence tel ceux… … Wikipédia en Français
Alphonse Beau de Rochas — Alphonse Eugène Beau Alphonse Beau de Rochas Alphonse Eugène Beau dit Beau de Rochas, 9 avril 1815 à Digne 27 mars 1893 à Vincennes, fut un ingénieur thermodynamicien et lauréat de l institut (Académie des Sciences). Ingénieur … Wikipédia en Français
Alphonse Beau de Rochas — Infobox Person name = Alphonse Eugène Beau de Rochas image size = 150px caption = Alphonse Beau de Rochas birth name = birth date = 9 April 1815 birth place = death date = 27 March 1893 death place = death cause = resting place = resting place… … Wikipedia
Beau — (v. französ. beau schön) bezeichnet einen „Schönling der Gesellschaft“, siehe Playboy (Person) Beau ist der Familienname folgender Personen: Albin Eduard Beau (1907–1969), deutscher Germanist, Romanist und Lusitanist Alphonse Beau de Rochas… … Deutsch Wikipedia
