File:Newcomen6325.png

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Summary

DescriptionNewcomen6325.png	English: Atmospheric Steam Engine. The Steam was generated in the boiler A. The piston P moved in a cylinder B. When the valve V was opened, the steam pushed up the piston. At the top of the stroke, the valve was closed, the valve V' was opened, and a jet of cold water from the tank C was injected into the cylinder, thus condensing the steam and reducing the pressure under the piston. The atmospheric pressure above then pushed the piston down again. Deutsch: Atmospherische Dampfmaschine. Der Dampf wurde im Boiler A erzeugt. Der Kolben P bewegt sich im Zylinder B. Wenn das Ventil V geöffnet wird, strömt der Dampf in den Zylinder und drückt den Kolben nach oben. In der Spitze der Auslenkung des Kolbens wird das Ventil V geschlossen und das Ventil V' geöffnet, wodurch ein kalter Wasserstrahl aus dem Tank C in den Zylinder eingespritzt wird. Hierdurch kondensiert der Dampf und der Druck unter dem Kolben reduziert sich. Der atmosphärische Druck über dem Kolben drückt diesen nach unten.
Date	Published in 1913
Source	English: en:Newcomen engine from Practical physics for secondary schools. Fundamental principles and applications to daily life, by Newton Henry Black and Harvey Nathaniel Davis, publ. 1913 by en:Macmillan and Company, p. 219 A full version of the book can be found at https://archive.org/details/practicalphysics00blacrich, including high-resultion colour scans (300 dpi) of every page (ftp://ia310940.us.archive.org/1/items/practicalphysics00blacrich).
Author	Newton Henry Black, Harvey Nathaniel Davis

Licensing

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