Buoyancy canister???

[Frii]

   Could a canister that is designed to collapse under the weight of water make energy? It would work like a submarine having air to float back to the surface and take on water to sink. I not sure how to make it expand at the top, maybe a lever that uses the weight of the canister to activate the lever. I not sure how to design it to collapse in the most efficient way. Could I make it into a wheel?   

[hansvonlieven]

How do you intend to replace the air after it has sunk so it can rise to the surface again without expending energy?

Hans von Lieven

[Frii]

It's going to work like a submarine it will keep air in tank that will not collapse. Someone else told me that a lever at the top would take more energy then is created at the bottom. So What if I use Springs on the inside that push out at a 100 pound and have a locking device that wouldn't let it collapse until the water weight is 600 pounds around it.

[hansvonlieven]

After your tank floats to the top you will have to let the air out or re-compress it so it can sink again.

This requires energy to re-compress or an air intake on the bottom. How will you do that?

Hans von Lieven

[Frii]

Thanks, I didn't think of that part of it to re-compress the air. Is there a way to use the water weight to force the water out of the ballast tank that wouldn't leak? I think when its at the bottom the force of the water could crush a collapsable tank that would move levers to force water out of the ballast tank. When the water force is less it would let in water into the ballast tanks. It would also need a device that wouldn't let the collapsable tank collapse until it reached its depth would need springs to force it open at the right time when the water force is less at the top. It would also have to use levers or pulleys to counteract the weight of the water on the ballast tank flaps.