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Unread 23-06-2002, 23:57
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#0047 (ChiefDelphi)
 
Join Date: May 2001
Location: Pontiac, MI
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Sounds legal to me

Posted by Gary Bonner at 2/1/2001 10:42 PM EST


Other on team #433, Firebirds, from Mount Saint Joseph Academy and SCT Corp., FMC Corp..


In Reply to: Does this work?
Posted by Joe Johnson on 2/1/2001 6:08 PM EST:



: P.S. Would it be legal to get a sort of "squishy" lock condition by using the check valves to keep the air from escaping? Perhaps not if the pressure regulator was not allowed to bleed off any excess pressure generated. Thoughts?

From Team Update 4:

M21. The SMC regulator fixed at 60 psi must be connected to the output of the pump and/or volume tanks in order to limit the maximum “working pressure”. Working pressure is the air pressure that may be used to actuate the valves and air cylinders.

M22. It is acceptable to directly couple one end of a cylinder to a suction cup and drive the piston in order to create and release vacuum. Further, it is acceptable to connect a valve (connected to the “working pressure”) in parallel with the suction cup and cylinder in order to introduce air into the system. It is not acceptable to intentionally generate pressure by using a cylinder as a pump, but the normal back-pressure from a load applied to a cylinder piston is ok. Cylinders may not be used to make reciprocating pumps (i.e. pumps designed to cycle a cylinder and valves continuously to create stronger and stronger pressure or vacuum).


It looks to that you can use the check valve to prevent the regulator from bleeding off the back-pressure from the load on the cylinder.


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