The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine, developed sporadically from 1763 to 1775, was the next great step in the development of the steam engine.

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  • The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine, developed sporadically from 1763 to 1775, was the next great step in the development of the steam engine. Offering a dramatic increase in fuel efficiency, the new design replaced Newcomen engines in areas where coal was expensive, and then went on to be used in the place of most natural power sources such as wind and water. James Watt's design became synonymous with steam engines, due in no small part to his business partner, Matthew Boulton.
  • La machine de Watt est une machine à vapeur d'époque dite "à simple effet", à laquelle il apporte des évolutions fondamentales la transformant en "double effet". James Watt ajoute et brevette en 1769 : un volant d'inertie, un condenseur de vapeur externe, un régulateur de vitesse à boules, un balancier articulé dit parallélogramme de Watt transformant le mouvement rectiligne du piston en mouvement de rotation, et un tiroir de distribution de la vapeur mû par un mouvement excentrique permettant d'envoyer la vapeur alternativement de part et d'autre du piston.
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  • Watt steam engines
  • James Watt
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  • The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine, developed sporadically from 1763 to 1775, was the next great step in the development of the steam engine.
  • La machine de Watt est une machine à vapeur d'époque dite "à simple effet", à laquelle il apporte des évolutions fondamentales la transformant en "double effet".
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  • Watt steam engine
  • Machine de Watt
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