Watt's improved Newcomen engine

Watt's improved Newcomen engine

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Credit: CLAUS LUNAU/SCIENCE PHOTO LIBRARY

Caption: Watt's improved Newcomen engine. Computer artwork of James Watt's improved version of Thomas Newcomen's steam engine. The Newcomen atmospheric engine (patented 1705) was the first true steam engine. It had a 'walking beam' pivoted arm (upper left) to transfer power between the piston (at right end of arm) and the 'rod' (chain at left end of arm), and utilised a boiler (bottom right) to provide the steam. Watt's version (in May 1765) caused the steam to condense in a separate chamber (condenser) apart from the piston. This helped to maintain the temperature of the cylinder at the same temperature as the injected steam (by surrounding it with a steam jacket ), and meant that very little heat was absorbed into the cylinder itself on each cycle. Thus more

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Keywords: 1765, 18th century, artwork, atmospheric engine, coal mine, condenser, diagram, efficiency, eighteenth century, first steam engine, historical, history, history of science, illustration, improved, improvement, improvements, industrial, industrial engineering, industry, james watt, machine, mining, more efficient, newcomen engine, newcomens, pump, pumping, steam-powered, technological, technology, thomas newcomen, water-powered, watts

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