Introducing The Dudgeon Engine

[electricme]

@ MW383

Jim,

I am starting to get this drawn up in 3D cad. What I have is probably not correct but I will forward pictures anyway so you can mark up for corrections. Bit by bit I can get this fully modelled.

, MW383

Thanks MW, I am looking forward to seeing the pics of what you have done, I appreciate you doing this for me, just send the photos to my email box and I will examine them from there.

I have another drawing of the way the engine flywheel end couples into the fixed base end plate.
There is a stubby shaft protruding from the center of the flywheel, the end goes into the inside of a porous bronze bushing which is fixed inside the fixed end plate.

This is to prevent any out of round occurring or flexing of the output shaft and wobbling of the flywheel.

jim

[electricme]

@ MW838,

I decided to draw up and photograph a paper model of the 4 stroke principle, which I have been able to combine the 2 revolutions into a single revolution.

@all,
There are a series of 13 photos, keep your eye on the ARROW denoting the rotation of the flywheel.

As I don't know how to put a photo with its text next to it, maby someone might like to try this, until then, you all will just have work it out for your selves.

I have also made 2 Tiny Weeny Videos, which will be posted after these still photos.
Look for the "paperclip" and click on that below the "pink" icon. TA.

Rotation of the flywheel containing the recessed groove is ANTICLOCKWISE
Firing mixture takes place at the first position, the flywheel does 1 revolution, and the cycles start all over again.
Enjoy.

1778 = All valves closed, mixture fires, flywheel rotates anticlockwise, the mixture has several degrees of flywheel movement to totally burn.
1779 = Beginning of position where piston on square shaft begins it's downwards FIRST power stroke.
1780 = Piston is travelling downwards, driving flywheel further around.
1781 = Piston and square shaft almost at bottom of stroke.
1782 = Piston is at bottom of stroke, beginning of SECOND stroke, which is the EXHAUST stroke, exhaust valve opens.
1783 = Piston rising upwards, driving burnt gasses out through exhaust exit.
1784 = Piston rising, almost at top of stroke.
1785 = Piston has reached top of its stroke, exhaust valve closes, INLET valve opens
1786 = Piston is descending, intake gasses enter cylinder, the THIRD stroke is underway.
1787 = Piston almost at the bottom, intake valve closing.
1788 = Piston reaches bottom of stroke, intake valve closed.
1789 = Piston travelling upwards, compressing flamable gasses, the FOURTH stroke is underway.
1790 = Piston has reached top of stroke, the mixture fires, which drives the piston back down again. to begin another series of cycles.

 

[electricme]

Here are some more photos showing the progress.

[electricme]

The last four photos, enjoy.

jim

[electricme]

@All,

Before I post these videos, there is someone who is making a 3D model of my Dudgeon Engine, this is MW383, I am looking forward to see his results, perhaps these flat paper models of mine can be of help to everyone too.
Remember a 3D model will be able to show far better detail than my hand drawn scrappy looking thing.

Tonight I decided to make a short video which is accessed by clicking on the "paper clip" just under the "pink" TWV icon that jeanna on the Joule Thief forum so kindly made for me, thanks jeanna.

I decided it was time to make a paper flat model of my Dudgeon engine.
With a new operating principle, it takes a little time for someone who has never come across it to understand its operation, it is very simple, nothing complicated at all, however most people will have difficulty trying to figure out how did I manage to get 4 strokes, which in today's engines need 2 Revelations to work, to work only on a single revolution.
To most mechanics and engineers, this is totally impossible, ha ha, not any more.

The first video has my Aussie accent, explaining how the engine works, it's not very long about 12 seconds, you may copy the video if you so wish.
The second video, I will post in its own section as we can only upload to a certain limit per post.

Enjoy my gift to the world.

jim