Download e-book for iPad: Air engines : the history, science, and reality of the by Theodor Finkelstein

By Theodor Finkelstein

ISBN-10: 0791801713

ISBN-13: 9780791801710

ISBN-10: 079186085X

ISBN-13: 9780791860854

The unique Air Engines (also often called a warmth, scorching air, caloric, or Stirling engines), predated the trendy inner combustion engine. This early engine layout continually had nice strength for top efficiency/low emission strength new release. besides the fact that, the first difficulty to its useful use long ago has been the shortcoming of sufficiently heat-resistant fabrics. This trouble has now been eradicated end result of the higher Read more...


the unique Air Engines (also often called a warmth, scorching air, caloric, or Stirling engines), predated the fashionable inner combustion engine. This booklet assesses the advance of the air engine, and Read more...

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Additional info for Air engines : the history, science, and reality of the perfect engine

Example text

The compressed air leaves J on the upstroke and is divided by a slide valve c into two streams, one providing the primary air for combustion at g and the other the secondary air at f. This slide valve c is operated automatically by the governor G. The primary air stream g is passed round the hot brickwork for preheating and is then admitted to the furnace from underneath the grate B. The secondary air is necessary in order to limit the temperature of the air reaching the working cylinder, a practice perpetuated in today’s gas turbine.

Other engines with internal combustion are described in Engineering (1875), by Donkin (op. ), and by Kooke (1873). Although a regenerator could have easily been applied to all engines of this type, this was never done, probably because it was difficult enough to keep the temperature of the working cylinder down to a safe value without regeneration. The dust and ashes carried over into the cylinder from the fire, combined with the difficulty of maintaining at least some lubrication in the power cylinder, destroyed the engine fairly rapidly in nearly all designs.

Thus, Stirling’s invention of the regenerator was made nearly half a century before a proper understanding of its functioning became general. The first recognition of Stirling’s genius in inventing the regenerator so many years in advance of any scientific knowledge of the subject came from Professor Fleeming Jenkin, who said (1883–84): ‘ . . ’ After this discussion of regenerators, which has been necessary for putting the whole subject of air engines in its proper perspective, the design of individual engines that were in common use at one time can be explained.

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Air engines : the history, science, and reality of the perfect engine by Theodor Finkelstein

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