Subject:
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Re: Dave Schilling's pneumatic parlor trick
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 16 Aug 2005 21:15:50 GMT
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Viewed:
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3373 times
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> > Any ideas why this happens? For those of you who know right away (you know who
> > you are ;^), lets let the uninitiated talk about this and see if they can figure
> > it out!
> >
> > Hint: As you pump more and increase the pressure, the piston gets slightly
> > harder to manually compress. The difficulty of compressing the piston manually
> > does not increase dramatically.
>
> Is it because the extension side of the piston face has a greater surface area
> than the retraction side? The connection between the piston face and the piston
> rod accounting for the difference.
>
> Steve
Yep, that is why pistons push better than they pull.
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Message has 1 Reply:
 | | Re: Dave Schilling's pneumatic parlor trick
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| (...) This phenomemon is the reason why any pneumatic mechanism (such as steering) that you intend to stop in the middle (with pistons at the half way point) should always use two opposing pistons. This equalises the total piston area for each (...) (19 years ago, 16-Aug-05, to lugnet.technic)
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Message is in Reply To:
| | Re: Dave Schilling's pneumatic parlor trick
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| (...) Is it because the extension side of the piston face has a greater surface area than the retraction side? The connection between the piston face and the piston rod accounting for the difference. Steve (19 years ago, 16-Aug-05, to lugnet.technic)
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