555 Diesel - Energy Cells

Could someone please explain to me how the "energy cell" works. Also do you now what size and what thread is used to make a puller to remove the inner cone from the head.

Thanks in advance for any information.

Okay, this info was taken from the Continental Four Cylinder Diesel Manual:

1. The piston on its downward stroke, draws in a charge of clean fresh air, through the open intake valve and intake manifold which is unrestricted except for the oil bath air cleaner.
2.On the upward or compression stroke, the air is forced into the combustion chamber and energy cell where it is compressed approximately 15 to 1. Compressing it to this high ratio, raises its temperature to between 900 and 1000 degrees F.
3. Near the top of the compression stroke, at a predetermined point, fuel is injected into the combustion chamber under pressure of approx. 1800 PSI. This injection takes the form of a solid core passing directly from the nozzle, across the combustion chamber, and into the opening of the energy cell. This solid core is surrounded by a concial spray which upon entering the heated air in the combustion chamber, ignites and starts the combustion. The air and fuel trapped in the energy cell likewise ignites but due to the design of this assembly, which is made of special steels, the rapidly built up pressure is trapped and is permitted to expand only through the metered opening, back into the combustion chamber where its application against the head of the piston continues well through the power stroke. It is this reaction, wherein the full pressure of combustion is not permitted to reach the piston in one heavy, sharp build up of power, but instead is controlled and extended over a longer portion of the downward stroke, that provides foundation for the name "Cushioned Power".
4. Near the end of the power stroke, the exhaust valve opens and as the piston starts up on the forth and final stroke of the cycle, the burned gases are forced out through the exhaust system. This design makes it possible to build a Diesel Engine that is comparatively light in weight, without sacrificing power or engine life.

As far as the tool, the thread size I used is 1-20 (extra fine). I took a 4-1/2 inch long piece of 1 inch stock and had one end threaded 1-20 (with about 1 inch long of threads) and then threaded the rest 1-12 and used washers and spacers as needed and a 1-12 nut to pull it out. They certainly can be a pain to get out. Try to get your hands on a Continental 4 cyl Diesel Operation & Maintenance Manual - they show up on ebay from time to time and have tons of good info in it.

Thank you very much for your excellent explanation and the information on fabricating a puller.