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Author Topic: Gravity motor concept design  (Read 26386 times)

DreamThinkBuild

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Re: Gravity motor concept design
« Reply #30 on: January 10, 2011, 08:47:36 PM »
Hi Solardark,

Welcome to the forum,

There has been many designs that try to shift the weight of a wheel. In your design I see spots on the corner edges where eddy current could be setup and create friction in the design. It will experience a pullback when it tries to cross the corners you would have to remove the flat edge from inside the wheel.

Here is a most recent patent application by a Taiwan group which also relies on magnets but in a different setup.

#US20100253091
"PHYSICAL ENERGY-CONVERTING ROTOR, ROTATING METHOD OF THE SAME AND GENERATING SET USING THE SAME"

http://www.freepatentsonline.com/y2010/0253091.html

The hard part with patents is your not sure if they are actually built or just theorized. Some patents are also missing steps/key parts if you try to rebuild them.

solardark

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Re: Gravity motor concept design
« Reply #31 on: January 11, 2011, 12:44:58 PM »
thanks dreamthinkbuild. i actually have come to the conclusion that the unit can't work as-is.

after lumen's input i went back and did an energy analysis of the system. you know, comparing potential energy changes on the right to the possible work ouput of the system on the left.

haven't finished the calculations yet but what i see so far leads me to believe that the negative POTENTIAL energy change on the right is greater than the possible system WORK OUTPUT on the left (at the two corners).

will do a post of the calculations later when i've sorted everything out. looked at Sjack Abeling's design pic on the "real world replication" thread. i think that design too will have those same problems.i.e. -PE change on the left corners will be larger than system possible W output on the right.

my thanks to everyone, specially lumen.it's funny how one sentence made in just the right ways helps change your perspective so radically.

oughta be smacked upside the head really. energy analysis is one of the first things i should have done. that's 200 level mechanics for crying out loud.

solardark

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Re: Gravity motor concept design
« Reply #32 on: January 11, 2011, 12:55:45 PM »
DON'T NOBODY BUILD THIS UNIT.

IT WON'T WORK!!!

the design still needs some TWEAKING.

this battle may be lost but the war ain't over yet.

cheers all...


guruji

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Re: Gravity motor concept design
« Reply #34 on: March 28, 2011, 01:23:56 PM »
Hi solardark thanks for sharing. I was thinking what if it's in the contrary mode?. I mean only one magnet to pull the load in while all loads with a spring out.
Thanks

solardark

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Re: Gravity motor concept design
« Reply #35 on: April 02, 2011, 10:41:04 PM »
Good one michel. That design looks promising. bouyancy differences are likely to give better results than moment based systems.

two things though. first friction at the piston/container contact area could really mess up that system. If friction is kept at a minimum here and watertight conditions still exist then it may work.

second, i'm not real sure how much of a volume change one can produce when the suction and compressive reactions of the gas in the system are considered.

he did state that nitrogen would be used in the chambers but if my experiences with empty (needleless) syringes are anything to go by, those pistons won't get very far before suction or compressive pressure in the chamber stops them.

Are there independent replications or commercial versions of the unit?

@guruji:  spring based systems that involve changes in spring lengths (to me) are mostly a bad idea. you consume energy compressing/stretching those springs and that in itself is enough to defeat the goal of such designs.

At the same time, a magnet (single free magnetic pole) tends to attract at points beyond the expected line of action i.e they tend to pull elements closer together when such elements should be moving apart.

Usually you have only small moment differences to play with in overbalanced systems and these design approaches eat up whatever advantage one seems to have created.