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François Isaac de Rivaz
François Isaac de Rivaz
(Paris, December 19, 1752 – Sion, July 30, 1828) was an inventor and a politician. He invented a hydrogen-powered internal combustion engine with electric ignition and described it in a French patent published in 1807. In 1808 he fitted it into a primitive working vehicle – "the world's first internal combustion powered automobile".[1]

Contents

1 Biography 2 Internal combustion engine 3 Alternative claims for internal combustion engines 4 See also 5 References 6 External links

Biography[edit] Isaac was born in Paris
Paris
to a family from Valais. In 1763 the family settled in Moûtiers
Moûtiers
in Savoy
Savoy
(Kingdom of Sardinia). The last two boys, Anne Joseph and Isaac, came to settle in St. Gingolph in Valais. It is not known at which schools he studied, but he became fluent in Latin
Latin
plus mastering mathematics and geometry, whilst continuing his study of mechanics throughout his life. He qualified as both a surveyor and notary and worked for the state of Valais.[2] Isaac had many interests plus an intuitive and extremely curious mind which was driven by the demon of discovery. His experimental work was overflowing. He experimented with steam-powered vehicles in the late 18th century.[2] He also studied the ignition of combustible gases.[2] Internal combustion engine[edit] Main article: de Rivaz engine After retirement from the Army, living in Switzerland, he invented a primitive internal combustion engine which he constructed in 1807.[1] It was powered by a mixture of hydrogen and oxygen manually ignited by electric spark, but the engine neither involved the in-cylinder compression, the crank, nor the connecting rod.[1] A year later, Isaac built an early automobile for his new engine to power.[1][3][4] His engine was never commercially successful.[clarification needed] Alternative claims for internal combustion engines[edit] Coincidentally, in 1807 Nicéphore Niépce
Nicéphore Niépce
installed his 'moss, coal-dust and resin'-fueled Pyréolophore
Pyréolophore
internal combustion engine in a boat and powered up the river Saone
Saone
in France to be granted a patent by the Emperor Napoleon Bonaparte. The discrete, virtually simultaneous, implementations of these two designs of internal combustion in different modes of transport means that the de Rivaz engine can be correctly described as "the worlds first use of an internal combustion engine in an auto-mobile (in 1808)", whilst the " Pyréolophore
Pyréolophore
(in 1807) was the world's first use of an internal combustion engine in a ship".[citation needed] Although de Rivaz's early work is credited as the first use of the internal combustion engine in an automobile, the further development and mass production of the invention never truly began until the late nineteenth century. In 1824, the French physicist Nicolas Léonard Sadi Carnot scientifically established the thermodynamic theory of idealized heat engines. This highlighted[citation needed] the shortcoming of these pioneering designs, whereby they needed a compression mechanism to increase the difference between the upper and lower working temperatures and potentially unlock sufficient power and efficiency. Gasoline
Gasoline
was not used for internal combustion engines until 1870 when carburetors were invented to convert non-combustible liquid fuels into a combustible gaseous mixture form. See also[edit]

De Rivaz engine Timeline of transportation technology Timeline of hydrogen technologies History of the internal combustion engine Pyréolophore Nicéphore Niépce

References[edit]

^ a b c d Eckermann, Erik (2001). World History of the Automobile. Warrendale, PA: Society of Automotive Engineers. ISBN 0-7680-0800-X.  ^ a b c Michelet, Henri (1965). L'inventeur Isaac de Rivaz: 1752 - 1828. Editions Saint-Augustin. Retrieved 2011-05-28.  In French ^ About.com: Inventors: The History of the Automobile
Automobile
- The Internal Combustion Engine and Early Gas-Powered Cars ^ US 7137366  Page 10: : In the early nineteenth century, Francois Isaac de Rivaz of Switzerland invented a hydrogen-powered internal combustion engine.

External links[edit]

1807 Francois Isaac de Rivaz - internal combustion engine

Authority control

WorldCat Identities VIAF: 72810097 LCCN: n84805517 GND: 1052773990 SUDOC: 1

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