Dreamer3000’s Weblog

l?Circular Engines

Heat / Pressure of burnet gases acts on both the engine head and the piston, the heat/pressure on the heads side is absorbed thermally instead of doing any mechanical work, while the Heat/pressure on the piston side is converted into mechanical torque.
If you could make use or utilize the power or heat of pressure on the heads side you would actually increase power by 50% since you have increased the area in the equation of thermal effecency. Some one has done that on the page on this weblog called 80% thermal efficiency.

going back to circular engines

This is a very poor nararative work done by Tomey lee reed, but if you do the math your self , you will be able to see what I and him and a few other people see.
Also Please note that his engine is a Split cycle, (Scuderi engine) and also this split cycle has no negative torque due of the advancing of ignition. Great for diesel. think how good.

The Idea of Split cycle is clearer here .

Interruption – I invite you to Please read the new page thermal 80% efficiency.-

Introduction Film into the Wasted Energy in any Internal Combustion Engine.

The Reciprocating Piston Internal Combustion Engine (RP-ICE) that every one knows is worst of power plants when it comes to efficiency.
Infact all Internal Combustion Engines waist most of the energy you put in any of them about 70% is wasted, weather the power you use gas, Diesel, pressurized Air or what ever power
source.

If you want to get back those 70% of wasted energy read on.

In this page I will only discusse the Mechanichal conversion mechanisism diffirance between RP-ICE and circualr engiens.

Lets start

Here is a Demo of the way piston engine works Also the mathmatical equation of the Piston Connecting Rode Mecahnisim.

Internal Combustion engine works like this,

Mathematically speaking the force acting tangential to the crank radius is

F= (P.A. sin (α+β) ) / Sin (β)

F= (P.A. sin (α+β)
Sin (β)

Where
F=Power
P=gas pressure
A=Piston Area
see link for Alfa and Beta

In plane words, most of the power ,thermal heat, pressure is wasted.Since the COS and SIN functions are a very small mathematical functions. They rang from zero to 1 and back to zero.

To further simplify

10 x 10 x Cos (something) = is always very small
COS is a function that leaves your final result of your input at the lower end.

Click on the following pic to see animation of the Changing Lenght of Arm Torque of a RP-ICE.

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Now what would you think about creating an engine that that isn’t reciprocating nor Wankel like, that converts the power of pressurized burnet gases directly into Radial torque is the subject of these pages.

A Continuous Full torque – Continuous Complete torque – Continuous Circular torque – Continuous torque – Continuous Toroidal torque – Continuous Toroidal engine –Continuous Annular engine – Continuous Elliptical engine – Continuous Orbital torque- orbital engine = would do this


Mathematically

T= P x A x R.

Where T=torque P=gas pressure A=Piston Area R= the radios of the rotor/connecting mechanism.

And it is not a Jet engine and it is not a Wankel engine.
Please note that there is no (Cos ) or ( Sin ) of any angle in the equation to waist the power of the gases.

These engines are calculated to be 10 times more powerful , 4 time more efficient ,a reduction of fuel consumption of 75% , a huge increase of Maximum Revalotions Per minutes of 15000 RPM.
A Full Radial Engine with Complete or Continuous torque would have a thermal high efficiency i hope ranging from 80% to 95%. and i hope a mechanical efficiency of 100%.
how would that be achieved is simple. Just look into the Previous picture form hekal Circular engine , click on picture if you want to ge to original web site.

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Just in case you missed the difference’s between the Circular Engines and the normal RP-ICE i will repeat .

here is a digram explaining the effective length of arm torque in RP-ICE.

Here is link from Wekipedia shwoing the acceleration and deceleration and speeds that the piston has to do through to give us its power.

while in a Radial engine you have the arm complete at all times and the Piston is moving ina circular chamber.

.
so the pistons now go round and round inside a fully circular – toroidal – orbital- annular combustion / expansion / compression / suction chamber.
And those pistons act
directly on the arm of torque / disk.

So what does that mean ?The key difference Between the RP-ICE and this Full Torque Circular engine design , is that the length of the torque arm or the actual torque or the Effective Length of Torque Arm (ELTA) in a normall RP-ICE is changing from ZERO length to Full length (equaling crank radius) and then back to ZERO length.

The following Diagram shows that it is only for a fraction of a second that you get Full Length of effective Torque arm, seen in green.


While in these Circular radial engines the length of the torque arm or the effective torque is at Full length throughout the power stroke , in fact throughout the the entire Revolution of the engine , not just for a moment. So it isn’t just for ONE moment during the entire Revolution of the crank that you have Full Lenght Torque Arm.
but all the time.

In the next pic , displayed is the Gas pressure and crank angle and Torque Generation .

As you can see there is a delay between the Gas pressure Value and the Generation of the Actual torque. after a few degrees there is enough Effective Torque Arm Length to make use of the Gas pressure .

Also please note that the Torque Value curvature goes beneath the Value Zero meaning you have Negative torque .

this chart should be read in relation to the chart in Heakal engine.
where there you can see the immediate generation of power torque and the huge gigantic generation of power in Hekal Engine while you can see the delayed Generation of power in any normal Engine Wankel or Piston, also the amount of power is Minimal .

8 Comments »

  1. diesel engines…

    This is similar to comment spam but avoids some of the safeguards designed to stop the latter practice.A Trackback is one of three…

    Trackback by diesel engines — September 11, 2008 @ 7:12 am | Reply

  2. the circular motion engine that is describe has fundamental flaws
    first the piston head and the cam shaft has to be connected so the combustion chamber is not sealed
    no power generated
    second how can you get the compression required for the power to be generated

    Comment by susheel — March 2, 2009 @ 8:35 pm | Reply

  3. Dear Susheel

    Please take a look at the link for the company called Cirqular engine. they have an

    animation and a working prototype.

    http://www.wrightengine.com/

    Thank you

    Comment by dreamer3000 — March 3, 2009 @ 11:41 am | Reply

  4. Interesting reading.

    When are we (end user) going to benefit from this type of engine?

    Comment by L N — April 24, 2009 @ 3:55 pm | Reply

  5. Dear Mr. Omran
    I am a school mate of Hekal Bedair, He is trying to contact you for a technical discussion about rotary engine and was wondering if you are in Cairo to mmet with him if you are interested

    Please contact him through his website if you are interested.
    Thanks
    Rasheed

    Comment by Rasheed Reda — May 6, 2009 @ 3:32 pm | Reply

  6. Cool site, love the info.

    Comment by Dryer Vent Cleaning — September 19, 2009 @ 12:44 am | Reply

  7. superbbbbbbbbbbbbbb……even i was thinking similar engine …. good work……

    Comment by sharath — September 29, 2009 @ 10:54 am | Reply

  8. Hello, it really interesting, thanks

    Comment by beaptapsfup — October 13, 2009 @ 5:49 am | Reply


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