John Fox Jennens Malone The Liquid Stirling Engine DIGITAL EDITION


This book has been out of print for some time, and is now reintroduced as a digital book for viewing on a computer, iPad or the like. Not downloadable on to a 'Kindle' or similar reader.

Originally published in 2007 and now available as a Digital Edition with the author's permission, this is the story of John Fox Jennens Malone and his "Improved Heat Engine Operated by the Force of Expansion of a Liquid". He applied for a Patent for this in February 1922, but it was a further three years until a working engine could be publicly demonstrated, this engine being followed by two increasing larger versions.

The basic principle of Malone's engines were very similar to those of Stirling Engines, except that Malone used a liquid as the working fluid, rather than air. Having tried many liquids he finally settled at water, at very high temperature and pressure resulting in them providing very econmical power. Plus, as they did not require larger boilers, their footprint was small, making them ideal for use in ships.

The arrival of large marine diesel engines were the immediate cause of Malone's engines not being used commercially, but thery were also at the technological limits of the period as regards materials capable of handling the high temeperatures and pressures they required. But in today's environmentally conscious days, has the time come to reconsider the Malone engine?

This is a good place to start considering the matter, as there is a considerable amount of technical meat, both in the text, and the Patent applications her

74 text pages. 35 drawings, diagrams and B&W photos.