Electric motor/Timelines

Timeline of motor and engine technology

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 1816: Robert Stirling invented his hot air Stirling engine 1821: Michael Faraday builds an electricity-powered motor 1837: First American patent for an electric motor (U.S. Patent 132,) 1877: Nikolaus Otto patents a four-stroke internal combustion engine (U.S. Patent 194,047,) 1888: Nikola Tesla patents the induction motor (U.S. Patent 381,968,) 1892: Rudolf Diesel patents the Diesel engine (U.S. Patent 608,845,) 1929: Felix Wankel patents the Wankel rotary engine (U.S. Patent 2,988,008,) 1937: Hans von Ohain builds a gas turbine 1960s: alternators replace generators on automobile engines 1970s: electronically controlled ignition appears in automobile engines 1980s: electronically controlled ignition improved to reduce pollution electronic fuel injection appears on gasoline automobile engines 1990s: Hybrid vehicles that run on an internal combustion engine and an electric motor charged by the previous engine to retain peak power usage.