Last updated Sunday 28 March 2014.
This page is about a real life- all ready built -three prototypes engines and actually ran. see below.
The site (patent) come from Egyptian engineer , and is by far the best publicly shared Mathematical and Engineering calculation work ever done on / into circular engines.
Unfortunately the site is no longer ruining-available.
This engine only addresses the Mechanical conversion mechanism dogma and presents a solution.
Currently at 35% thermal efficiency and maximum theoretical 60% with normal metal and maximum theoretical 80% TH.
Lots of great comparison Charts Figures and Diagrams.
I have tried to locate it again and emailed the owner with not results so far.
sorry for the inconvenience, at least i kept some of the info from him.
I will try to explain each to the best of my knowledge. Each figure is set to medium size, to click on it to enlarge or to go to original website.
The above Picture “Direct Piston torque Compare” shows how in Normal Reciprocating Piston Engine , the effective length of the torque arm is changeable and related to the crank angle twist (angle), resulting in the biggest loss of power, missing out on the Maximum/peak Gas pressure .Since the Effective Lenght of Tourqe Arm (ELTA) is Zero or a fraction of a hundred.
So when there is absolute maximum gas power there is no torque at all
Gas pressure PSI Tourqe Arm x (Piston Area)514 x Zero x 1.705 = Zero.
While in a Circular engine the Effective Lenght of Tourqe Arm (ELTA) is at complete and continuous or full length. resulting in full usage of the maximum peak of the gas pressure.
Gas pressure PSI Tourqe Arm x (Piston Area)
514 x .65 x 1.705 = 578.4
Since i am not good with units , i think it is Pound Per foot. but doesn’t matter the unit the point is the huge difference in out pot power . this is the same chart redone and pasted here.
I will try to post an excel sheet with graphs.
As you can see there is a huge difference in power out put.
This next image gives you a Break down and distribution of the power for a unit of Gasoline , explaining the diffidence between Circular engine and and Piston engine.
While the Circular engines has a firm steady complete full length of torque arm.
This next Table explains the many different attributes of both engines.