Now why I summoned Riccardo..Ricardo developed fairly firebox V-Comet .. Especially in diesel played a significant role - helped make a high speed diesel engine .In my also applied the swirl chamber, knowing about its merits. The eyebrow appearances, this is what you see on the animation, this is not the combustion chamber. It is only the cross section through the center of the engine combustion . At the rear, with the cross-sectional view as seen in the picture, it is a channel connecting the piston "sucking" piston "exhaust". Flows this way the entire load of fuel and air, but it achieves a very high speed, which in the initial attempts resulted in taking ionized air from between the spark plug electrodes and prevented the formation of spark .Only after a magnification of this channel, began to develop a spark. If sweeping spark plug, this place was a diesel injector, it would be very beneficial ,, because after falling into the space above the small pistons with a very high speed, it would be very intense spin and excellent mixing of fuel and air. I think it is possible to build a high speed diesel, well, up to 10 000 RPM. Also on gasoline this spinning is beneficial and Ground your walls on the smallest piston, is probably the smallest of the previously used, and the heat losses are the smallest .Also at such a high speed of rotation of the smallest piston samozaplonów foci formation will be very difficult. Apart from this place, burning virtually runs elsewhere, because the distance between the planes must be greater than two millimeters in height, so that there could arise a flame. In total combustion occurs with forced intensive centrifugation only over a small piston in the cylinder least .. This is the very Riccardo improved swirl chamber, with the movement of loads in one direction and forced mechanically great speed of combustion. Looking only at the same animations, we are not able to notice it all properly. Today on the combustion chamber.
Andrew