Cadman’s Hydrostatic Displacement Engine

[Grumage]

Thanks Graham,

Now you can see the problem showing up.
It's not just a sinking weight, it's displacing water and causing pressure to build and stop it from displacing additional water.

tinman,
Thanks for doing the math. I think we both knew that the result was the same calculating pressure or buoyancy.

Hi Lumen.

Yes indeed, we can see the problem. However that problem occurred at twice the value of the working parameters shown by Cadman.

As I see it the major problem will be the size chosen for a prototype. At small scale frictional losses will become its " Achilles heel " particularly with piston seals.

In this scenario " BIG " will definitely be " BETTER. "

Cheers Graham.

[Floor]

Been studying the design.

Here are some observations / opinions.

[Floor]

One more thing cadman,
        congratulations

    floor

[Floor]

One more, one more thing.

The check valve at the bottom of the displacement piston
needs to be simply closed / not functioning as a check valve during the
lifting of the displacement piston.

The device works because :

1. With that displacement piston valve closed, during the piston lifting
gravity is assisting that lifting.

2. Gravity does all of the work of lowering the displacement piston.

3. The combination of 1. and 2. is what enables the higher lifting of the fluid,
when the piston falls.

        regards

[Floor]

Another observation.

It is best that the valve at the bottom of the displacement piston, is closed upon
its arrival the bottom of its decent.  Other wise fluid will fall in the displacement
piston tube, while rising (due to hydro static pressure) in the supply tank .
An un needed waste.