[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PSUBS-MAILIST] Piston pressure regulator
Hi Silky,
You can also download Pierre's paper on BIG at:
http://www.psubs.org/convention/2003/BIG.ppt
Regards,
Ray
--- Ray Keefer <psubs2001@yahoo.com> wrote:
> Hi Silky,
>
> Get a set of the 2003 PSUBS Convention DVD's. Pierre
> did a talk where he extensively covered his design.
>
> Regards,
> Ray
>
> --- s ï l k y N?³ <silkyfx@hotmail.de> wrote:
>
> > Hey Pierre,
> > Yea you assumed correctly and i like your idea.
> dono
> > why i didnt think of
> > that its less prone to inaccuracy because its mush
> > simpler to check the
> > setting with the gage. i have some questions about
> > BIG:
> >
> > how dose BIGs hatch seel? how did you make that
> > seel?
> > i noticed that thr is a hatch clip on the outside,
> > can it also be opned from
> > the inside? how?
> > How dose air go from the scuba tanks into the
> hull?
> > how is the brathing air
> > flow regulated?
> > Dose BIG have a web page?
> >
> > thnx
> > silky
> >
> > >Hi Silky,
> > >
> > >I like your idea.
> > >
> > >As for (3) emergency use, I assume that one side
> of
> > the piston (the side
> > >with the spring) must be at 1atm of else you
> would
> > only mesure pressure
> > >difference...
> > >
> > >I have another idea. If instead of using spring
> you
> > use compressed air on
> > >one side of the cylinder. So you want max deep of
> > 100 foot (50 psi). you
> > >slowly open a valve from air tank and adjust
> > pressure inside cylinder to 50
> > >psi with a gage. That way, it could be easy to
> > adjust and also be variable
> > >adjustement for any situation.
> > >
> > >We could also used electricity for valves because
> > lots of pneumatic
> > >cylinder already commes with limit switches
> mounted
> > on the core of the
> > >cylinder. Off the shelf and ready to use.
> > >
> > >My 2 cents to your idea...
> > >
> > >Pierre Poulin
> > >
> > >----- Original Message ----- From: "s ï l k y
> N?³"
> > <silkyfx@hotmail.de>
> > >To: <personal_submersibles@psubs.org>
> > >Sent: Friday, June 10, 2005 4:39 AM
> > >Subject: [PSUBS-MAILIST] Piston pressure
> regulator
> > >
> > >
> > >>Hey,
> > >>
> > >>I have posted a picture on moki. It shows the
> > basic principle of a methord
> > >>that could be used to regulate (three things)
> (1)
> > the air pressure
> > >>difference between water and in hull. (2) Vent
> air
> > out of an ambieus sub.
> > >>(3) automaticaly bring the sub back to the
> surface
> > if it goes under a
> > >>preset depth (too near crush depth or Air
> related
> > depths)
> > >>
> > >>(example) the idea is 1 lubricated water proof
> > piston with two open sides.
> > >>one open side exposed to the outer water
> pressure
> > and the other to the
> > >>inside pressure. The displacement from its
> central
> > position due to presure
> > >>difference is used to open - close two valves.
> one
> > valve leads to the
> > >>breathing air suply the other (2) IS the air out
> > vent.(link to image at
> > >>bottom)
> > >>
> > >>Adjustable spring(s) could be used to controle
> the
> > sensetivity of this
> > >>system. This could if implimented correctly be
> > used to reduce the
> > >>probability of the piston bouncing up and down
> > effect and reduce the
> > >>amount of air wasted due to small vertical
> > movements.
> > >>
> > >>How to use this as an emergency system (3) one
> > could for example use a
> > >>stiffer spring to encrease the pressure needed
> to
> > activate a valve and
> > >>increase the distance the piston must move
> before
> > the valve is activated.
> > >>In this case the activated valve would be a
> > secondairy blow ballast valve.
> > >>
> > >>I have scribles, notes & workings If you want
> more
> > info.
> > >>
> > >>thnx silky
> >
> >
>
_________________________________________________________________
> > Machen Sie lästigen E-Mails ein Ende. MSN Hotmail
> > mit Junk-Mail-Filter.
> >
> http://www.msn.de/antispam/prevention/junkmailfilter
> > Jetzt kostenlos
> > anmelden!
> >
> >
> >
> >
> >
>
************************************************************************
> >
>
************************************************************************
> >
>
************************************************************************
> > The personal submersibles mailing list complies
> with
> > the US Federal
> > CAN-SPAM Act of 2003. Your email address appears
> in
> > our database
> > because either you, or someone you know, requested
> > you receive messages
> > from our organization.
> >
> > If you want to be removed from this mailing list
> > simply click on the
> > link below or send a blank email message to:
> > removeme-personal_submersibles@psubs.org
> >
> > Removal of your email address from this mailing
> list
> > occurs by an
> > automated process and should be complete within
> five
> > minutes of
> > our server receiving your request.
> >
> > PSUBS.ORG
> > PO Box 311
> > Weare, NH 03281
> > 603-529-1100
> >
>
************************************************************************
> >
>
************************************************************************
> >
>
************************************************************************
> >
> >
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam
> protection around
> http://mail.yahoo.com
>
>
>
>
************************************************************************
>
************************************************************************
>
************************************************************************
>
=== message truncated ===
__________________________________
Discover Yahoo!
Find restaurants, movies, travel and more fun for the weekend. Check it out!
http://discover.yahoo.com/weekend.html
************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003. Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.
If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
removeme-personal_submersibles@psubs.org
Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.
PSUBS.ORG
PO Box 311
Weare, NH 03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************