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Unread 30-01-2008, 07:54
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Re: How much air do we need?

I have attached a graph that shows what happens to the pressure in your system when you activate two 2x24 cylinders at the beginning of Hybrid. Assuming you have no leakage,start with the system at 120 PSI and with 4 tanks, but have no compressor - the cylinders will fire but will reduce the pressure to 40 PSI as the stroke ends. This means that the force at the end of the stroke will be reduced; so you have to take that into account.

I have also attached the compressor data for Don's sake.

In case you are curious how I plotted this, attend my conference in Atlanta on Pneumatics and I will show you and will give out copies of the Pneumatic air management simulator that I developed. It is not ready yet for distribution.
Attached Files
File Type: xls Pressure over time.xls (42.5 KB, 91 views)
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Warning: this reply is just an approximation of what I meant to convey - engineers cannot possibly use just written words to express what they are thinking.