Vance & Brent,
Have a look at Bimba cylinders (they make them in S.S.).
John Holt at Harbor Branch use to swear by them.
R/Jay
Respectfully,
Jay K. Jeffries
Andros Is., Bahamas
As scarce as the truth is, the supply has always been in excess of
the demand.
-Josh Billings
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Saturday, January 10, 2009 6:37 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Mushroom Vent CAD Assembly Options
The three way just vents it
through a bronze muffler fitting into the main cabin. Even at 2250 psi, the
volume is miniscule. I'll get back to you on the pistons.
Vance
-----Original Message-----
From: Brent Hartwig <brenthartwig@hotmail.com>
To: PSUBSorg <personal_submersibles@psubs.org>
Sent: Sat, 10 Jan 2009 2:46 pm
Subject: RE: [PSUBS-MAILIST] Mushroom Vent CAD Assembly Options
Thanks Vance,
What brand and model of single line pneumatic
actuator were you looking at using? As it turns out my current
assembly only needs 1 to 1.5 inches movement in the acturator. For a
single line unit, when the air pressure is released from the actuator, where
does that air go? I'm guessing it goes into the cabin unless it's
plumbing outside or into a empty tank.
Szybowski
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Mushroom Vent CAD Assembly Options
Date: Fri, 9 Jan 2009 21:30:55 -0500
From: vbra676539@aol.com
Cool graphics.
Vance
-----Original Message-----
From: Brent Hartwig <brenthartwig@hotmail.com>
To: PSUBSorg <personal_submersibles@psubs.org>
Sent: Fri, 9 Jan 2009 7:35 pm
Subject: [PSUBS-MAILIST] Mushroom Vent CAD Assembly Options
Greetings SMMOMs,
I've been working on a number of different ways to configure my version
of a Mushroom vent for the front and rear MBT's on my K-250. This is the one I
like the best so far.
http://cid-5085d10eb6afe47c.skydrive.live.com/browse.aspx/Plunger%20Assembly
http://cid-5085d10eb6afe47c.skydrive.live.com/browse.aspx/Mushroom%20Vent%20Concept%20Main%20Assembly
It's mostly made up of 1/4" X 1" 316 SS bar stock, and
1" thick black UHMW. So the goal is for it to be easy and
affordable to make and assemble. I made a mock up of the single line, spring
loaded pneumatic cylinder Vance was talking about, which I would like to use in
this assembly. I will need to trim away some material on the
plunger land, and the piece cut out when I made the whole in
the FRP MBT, that meets the bottom of the FRP MBT, and then attach
them with Seka flex and SS screws. This way I can have a clean look on
the top area of the MBT's, and the angle I have to mount the vent on aids in
letting almost all the air out. The very small air pockets left I'm thinking
will not be an issue. I thought mounting the vent this way would be better for
my application, since the knuckle curvature of the heads and the high point of
the MBT's are in the same area.
I'm interested in your guys thoughts on this concept design. I've
uploaded three screen capture clips of the assembly animated on Youtube.
The quality is not that great on Youtube, so if anyone would like better
quality versions of these clips, let me know off list and I'll send them to you.
http://www.youtube.com/watch?v=YvIc3qRRgv8&feature=channel_page
http://www.youtube.com/watch?v=S6D0iMgqgzk&feature=channel
http://www.youtube.com/watch?v=tdBap4iVoGQ&feature=channel
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