When did Watt invent the improved steam engine?

1764, British instrument repairman james watt noticed this shortcoming when repairing newcomen steam engine model for Glasgow University, and invented a steam engine with condenser separated from cylinder wall in 1765, and obtained a British patent in 1769.

In the early days, Watt's steam engine still used the balance bar and pull rod mechanism to drive the water pump. In order to remove the condensate and air from the condenser, Watt installed an air pump. He also installed an interlayer on the outer wall of the cylinder and heated the cylinder wall with steam to reduce condensation loss.

Watt's creative work made the steam engine develop rapidly. He turned the machine that can only carry water into a widely used steam engine, which doubled the thermal efficiency and greatly reduced the coal consumption. Therefore, Watt is a reformer of steam engine.

The main impact of extended data

The structure of the new steam engine invented by Watt on the basis of the original steam engine has hardly changed in the next 50 years. The importance of the invention of Watt's steam engine is incalculable. It is widely used in factories, becoming the power of almost all machines, changing people's work and production methods, greatly promoting technological progress and opening the curtain of the industrial revolution.

It enables the factory to be located in a more economical and effective place that does not depend on coal mines, and can operate all the year round without relying on hydropower, further promoting the development of economies of scale, greatly improving productivity and making business investment more efficient.

The steam engine makes it possible to innovate a series of precision machining, and higher technology ensures the performance improvement of various machines, including the steam engine itself. After continuous efforts, steam with higher pressure was introduced, and steam trains and steam ships soon came out one after another.

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