engine was invented by British engineer called Thomas Newcomen.
The first successful steam engine was built by him in 1712.
things have led to the development of the steam engine.
- the concept of a vacuum
- the concept of pressure
- techniques for generating a vacuum
- means for generating steam
- The piston and cylinder.
Before Thomas Newcomen, there were other
people that had created similar machinery. Such people were Hero of Alexandria in about
100 AD and Thomas Savery who was an English military engineer in 1698.
In Newcomens steam engine, steam passes from
the boiler through a valve into the cylinder. This balances the atmospheric pressure on
the upper side of the piston and allows the weight of the pump rod, connected to the
piston rod by a beam balanced on a fulcrum, to raise the piston. This allows the valve
between the boiler and the cylinder to close and a jet of water is sprayed into the
cylinder. By doing this, it produces a vacuum by condensing the steam, so the atmospheric
pressure on the upper side of this piston forces it downward, lifting the pump-rod by
means of the beam. This whole cycle may be repeated.
Newcomens engine was used mostly in mine pumping. James Watt is was a famous person for making big improvements to
Newcomens steam engine. Newcomens steam engine led to the development of
high-pressure engines, Cornish engines, high speed engines and the uniflow engine which
represents the final stage of the development of the steam engine. As time goes past,
steam engine have been improved but not dramatically after the invention of the uniflow
Life would be really different if it wasnt for the creation of
the steam engine. Great inventors such as the Wright brothers
would not have the opportunity to create an engine to fly an airplane, also the idea of
using steam engines in boats wouldnt exist. If you really think about it, this great
invention has led to many of the great developments created today.