Stefan did have a file sharing spot here [not sure where]
but he is updating things here now [pressing all the really big buttons]
??
will see if the pertinent pages can be snipped out and put in some file here?
or maybe some member with better Putor skills can post a link which can be open sourced globally ?
respectfully
Chet
ps since we have turned the page I repost the link and more comments from Cadman
here
the link again
https://books.google.com/books/about/Compressed_Air_Magazine.html?id=HjY0AQAAMAAJ--------------------------------------------------------
Cadman
quote
It's page 2229. That's the page number on the document, it's about page 530 in the pdf.
----
OK, breath taken. All is calm now so let's continue.
Earlier I referred to the Compressed Air article as background information to any who are unfamiliar with how J. F. Place produced liquid air by expanding pressurized air while the air performed work.
As an aside, even though the term 'liquid air' is used here, the term applies equally well to liquid nitrogen or other mediums.
To explain the working premise of my invention let's start with water and speak in somewhat general terms. 100 C is the boiling point of water at atmospheric pressure, the temperature where water becomes a gas (steam). Water at one atmosphere can not reach a temperature of 101 C because at that temperature it is no longer water, it is steam. At less than 100 C it is water.
Likewise, liquid air will transition between a gas and a liquid with a temperature variation of a few degrees above or below it's liquefaction temperature. With this small temperature change the volume will vary greatly.
It takes considerable energy to lower the temperature of the air hundreds of degrees in order to liquify it in large quantity and that energy has to be spent up front. No way around it. Fortunately, liquified gas is available for purchase in industrial quantities. What I have devised is a system to maintain that low temperature within a narrow range while still obtaining substantial work. Work performed both directly and indirectly. Directly by allowing a small portion of the liquid air to revert to a gas by absorbing a few degrees of heat just prior to entering the oscillator and using that gas in the expansion cylinder to maintain the motion of the pistons. Remember the Tesla oscillator functions as a pendulum so the work needed is just enough to prevent the decay of it's oscillations. The expansion of the gas while working the piston will lower it's temperature more than enough to return it to a liquid. Thus the oscillator can use heat from the environment to maintain it's motion.
Other energy in the oscillator is the inertia of the reciprocating mass of the piston assembly and the air compressed by the action of the spring piston. This compression creates “considerable heat” as described in the oscillator patent. This will be used as the heat source of a separate Stirling engine or other type of heat engine.
A small portion of the liquid air will be lost over time due to imperfect insulation and containment. By making every effort to provide insulation as perfect as possible the loss can be kept small and should be able to be replaced with a small expenditure of the developed power by methods already known.
That's the bulk of it. All that remain are the mechanical details.
Cadman
