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Compressed Air Powered Air Compressor...Confused
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Posted by in-too-deep on February 23, 2007 at 14:10:03 from (64.40.78.202):
The other day I was watching Future Cars on Discovery Channel. They had a car powered by compressed air. (Painfully simple, wish I would've thought of it.) But that's not where I'm going. They mentioned an air compressor that's powered by compressed air. They didn't say how it works so my mind started trying to figure it out. The problem is, you would be using more air to run the pump than you would be compressing. There can't be 100% or more efficiency in a machine. Perpetual motion doesn't seem possible here. If you had two cylinders the same size, one being cycled by compressed air, and the other connected to it to compress air, it wouldn't work because they would cancel each other out, and you couldn't have the driven cylinder bigger than the drive cylinder...but if you have the driven cylinder bigger than the drive cylinder, you'd be losing air...compressing less than you use to power the compressor. Gosh fellas...this one's got me beat. I sure hope someone can shed some light on my poor addled mind and I hope I'm making atleast a little sense in my question. I'm tired of losing sleep!!
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