# Timeline of motor and engine technology

Timeline of motor and engine technology
* (c. 30–70 AD) – Hero of Alexandria describes the first documented steam-powered device, the aeolipile.
* 13th century – Chinese chronicles wrote about a solid-rocket motor used in warfare.
* 1698 – Thomas Savery builds a steam-powered water pump for pumping water out of mines.
* 1712 – Thomas Newcomen builds a piston-and-cylinder steam-powered water pump for pumping water out of mines.
* 1769 – James Watt patents his first improved steam engine.

## 19th Century

* 1806 – François Isaac de Rivaz invented a hydrogen powered engine, the first successful internal combustion engine.
* 1807 – Nicéphore Niépce and his brother Claude build a fluid piston internal combustion engine, the Pyréolophore and use it to power a boat up the river Saône.
* 1816 – Robert Stirling invented his hot air Stirling engine, and what we now call a "regenerator".
* 1821 – Michael Faraday builds an electricity-powered motor.
* 1824 – Nicolas Léonard Sadi Carnot first publishes that the efficiency of a heat engine depends on the temperature difference between an engine and its environment.
* 1837 – First American patent for an electric motor (U.S. patent 132).
* 1850 – The first explicit statement of the first and second law of thermodynamics, given by Rudolf Clausius.
* 1860 – Lenoir 2 cycle engine
* 1872 – Brayton Engine
* 1877 – Nicolaus Otto patents a four-stroke internal combustion engine (U.S. patent 194,047).
* 1882 – James Atkinson invents the Atkinson cycle engine, now common in some hybrid vehicles.
* 1885 – Gottlieb Daimler patents the first supercharger.
* 1886 – Hot-bulb engine was established by Herbert Akroyd Stuart, Gottlieb Daimler invents the Petrol engine.
* 1888 – An AC induction motor is featured in a paper published by Galileo Ferraris and is patented in the U.S. by Nikola Tesla.
* 1892 – Rudolf Diesel patents the Diesel engine (U.S. patent 608,845).
* 1899 – Ferdinand Porsche creates the Lohner–Porsche, the first hybrid vehicle.

## 20th Century

* 1903 – The Exploration of Cosmic Space by Means of Reaction Devices was published by Konstantin Tsiolkovsky
* 1905 – Alfred Büchi patents the turbocharger.
* 1913 – René Lorin invents the ramjet.
* 1915 – Leonard Dyer invents a six-stroke engine, now known as the Crower six-stroke engine named after his reinventor Bruce Crower.
* 1926 – Robert H. Goddard launched the first liquid-fueled rocket.
* 1929 – Felix Wankel patents the Wankel rotary engine (U.S. patent 2,988,008).
* Late 1930s – Hans von Ohain and Frank Whittle separately build pioneering gas turbine engines intended for aircraft propulsion, leading to the pioneering turbojet powered flights in 1939 Germany and 1941 England.
* 1939 – The BMW company's BMW 801 aviation radial engine pioneers the use of an early form of an engine control unit, the Kommandogerät.
* 1940s – Ralph Miller patents his Miller cycle engine.
* 1954 – Felix Wankel creates the first working Wankel engine.
* 1957 – Rambler Rebel announced Electrojector electronic fuel injection option, however no production models were offered with the option.
* 1964 – Ion engine invented.
* 1966 – RD-0410 nuclear thermal rocket engine was ground-tested.
* 1960s – alternators replace generators on automobile engines.
* 1970s – electronically controlled ignition appears in automobile engines.
* 1975 – Catalytic converters are first widely introduced on production automobiles in the US to comply with tightening EPA regulations on auto exhaust.
* 1980s – electronically controlled ignition improved to reduce pollution.
* 1980s – electronic fuel injection appears on gasoline automobile engines.
* 1989 – The Bajulaz Six-Stroke Engine was invented by the Bajulaz S A company, based in Geneva, Switzerland; it has U.S. patent 4,809,511 and U.S. patent 4,513,568.
* 1990s – Hybrid vehicles that run on an internal combustion engine (ICE) and an electric motor charged by regenerative braking.