The development of the steam engine

Teacher ： Ru-Li LinStudent ： Yu-Chen Su , Min-Ying Lin

Southern Taiwan University of Science and Technology-Department of

Mechanical Engineering

Outlines• Newcomen

engine principle

base shortcomings

•Watt

James Watt Watt investment

Four patents Behind the scenes

•Conclusion

Newcomen

‧He is the British businessman designed for mining equipment business.

‧First for practical steam engine.

Newcomen atmospheric steam engine

Newcomen and Carl cooperation,invented his steam engine in 1705-1706(Obtain“ Condensate enters the lower part of the steam of the piston and the piston and connecting rod coupled to generate a variable motion” patent)。

Newcomen atmospheric steam engine principle

In 1705 , Condensate enters the lower part of the steam of the piston and the piston and connecting rod coupled to generate a variable motion

Lay the steam engine base

Newcomen atmospheric steam engine shortcomings

‧Thermal efficiency

‧Mechanical efficiency

‧Material issues

‧Processing problems

‧Problems (social needs)

The evolution of the steam engine

James Watt•January 19, 1736→Scotland

• August 25, 1819 →Died in 83 years Mechanic (In 1753)17-year-old Making mathematical tools (Glasgow→London )

Instrument manufacturing division (In 1757)21-year-oldBack to Glasgow →Making mathematical appliances

Steamer (In 1763)27-year-old→Repair atmospheric steam engine

1765-1790 → A series of invention

In 1776Roebuck

In 1782Bolton

Watt investment

In 1969,Separate condensing

•Savings firepower•Fuel consumption

First patent

The principles of the movement of the piston

Thermodynamics

Every stroke should be cooled with cold water , While the consumption of too much heat , Can not effectively use Maintain the temperature→Plus insulation jacket,Other methods heating

Rapid cooling liquefied into water and outside the cylinder →Originally conceived

Watt design model

The second patent In 1781, the Sun and the planets

In 1782, two-cylinder

The third patent

The fourth patent

In 1784, the parallelogram

Schematic diagram of the four patents

Various mixed liquid after the heating,The lower boiling component will be the first to evaporate,Its steam, of course, will be the first to be condensed into a liquid.

Steam engine-The application of the condenser

Steam engine-Two-cylinder applications

When a piston on the top, the other piston is at the bottom, due to the inertia of the vertical movement of the two cylinder piston almost cancel each other out, so the shock compared to a single cylinder is less.

Steam engine-Sun and planet gear linkage applicationsWells gear set

The gear teeth mutual holding the gear driven by another gear to transmit power

Steam engine-Parallelogram institutional applications

← Front bucket institutions

Can always maintain the level state, regardless Go to any angle can be maintained at the same level.

Wilkinson

Behind the scenes•The early 18th century -Darby found ironmaking

coke (In 1709)

•Wilkinson→The barrel boring machines in 1774

•Wilkinson→Precision drilling in 1775

•Promote the development of the industrial revolution

•The establishment of institutions and Dynamics foundation

•The basis of the internal combustion engine and turbine

Steam stimulated development

Watt

Mining industry

Textile industry

Metallurgy

References•http://tw.image.search.yahoo.com/search/images;_ylt=A8tUwZemu5BRwgkAFCtr1gt.?p=%E7%B4%90%E7%A7%91%E9%96%80&fr=yfp&fr2=piv-web •http://tw.image.search.yahoo.com/search/images;_ylt=A8tUwJqo5BR21AAnEdt1gt.?p=%E7%93%A6%E7%89%B9&fr=yfp&ei=utf-8&n=30&x=wrt • The Southern Taiwan Lin Congyi teacher history of mechanical materials Mechanical history books of the new compilation•http://wikipps.hk/%e8%a9%b9%e5%a7%86%e6%96%af%c2%b7 %e7%93%a6%e7%89%b9/• http://zh.wikipedia.org/zh-hant/%E8%A9%B9%E5%A7%86%E6%96%AF%C2%B7%E7%93%A6%E7%89%B9

•http://tw.image.search.yahoo.com/images/view;_ylt=A3eg9Gg0wZBRJkIANqht1gt.;_ylu=X3oDMTBlMTQ4cGxyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Ftw.image.search.yahoo.com%2Fsearch%2Fimages%3Fp%3D%25E5%2580%25AB%25E6%25B0%A1%E4%BB%8B%2F%E5%80%AB%E6%95%A6%2F%E5%8A%8D%E6%A9%8B%2F%E5%B8%83%E8%90%8A%E9%A0%93%2F%E6%84%9B%E4%B8%81%E5%A0%A1&p=%E8%8B%B1%E5%9C%%E4%B8%81%E5%A0%A1&b=61&ni=48&no=71&ts=&tab=organic&sigr=112l7ob0v&sigb=14eur86ig&sigi=116le0764&.crumb=jsJF3WDYd4C&fr=yfp

•http://tw.image.search.yahoo.com/search/images;_ylt=A3eg9GiSwZBRyC0AUy1t1gt.?p=%E9%8F%9C%E5%AD%94&fr=yfp&ei=utf-8&n=30&x=wrt&y=%E6%90%9C%E5%B0%8BYahoo! Image-250cc motorcycle, Front bucket institutions• http://zh.wikipedia.org/zh-hk/%E9%BD%92%E8%BC%AA• http://robottw.ntust.edu.tw/Robot08/pages/games.jc082241