high-pressure steam engine

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June 29, 2026

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High-pressure steam engines were a significant development during the Industrial Revolution, providing a more powerful and versatile source of motive power than earlier engines. While James Watt's engines were efficient for their time, they operated under low pressure. The development of high-pressure steam engines, pioneered by inventors like Oliver Evans in the United States and Richard Trevithick in England, allowed for greater efficiency and new applications, such as powering locomotives and industrial machinery. These engines converted thermal energy into mechanical energy, driving the rapid growth of industry by offering a power source independent of natural conditions.12

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- history of technology
  Steam engines
  …Cornish engineer Richard Trevithick introduced higher steam pressures, achieving an unprecedented pressure of 145 pounds per square inch (10 kilograms per square centimetre) in 1802 with an experimental engine at Coalbrookdale, which worked safely and efficiently. Almost simultaneously, the versatile American engineer Oliver Evans built the first high-pressure steam engine…
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  …Cornish engineer Richard Trevithick introduced higher steam pressures, achieving an unprecedented pressure of 145 pounds per square inch (10 kilograms per square centimetre) in 1802 with an experimental engine at Coalbrookdale, which worked safely and efficiently. Almost simultaneously, the versatile American engineer Oliver Evans built the first high-pressure steam engine…
  Read More