Re: [PSUBS-MAILIST] Stupid Idea was Burst Valve

[Marie-Andrée et Pierre <poulin.carrier@videotron.ca>]

Remeber that if you drop the weight, it is because you need ALL the upward 
thrust you can get. Disconnecting a connector will work against the upward 
thrust.

I think about getting unstuck from something in the bottom.

Pierre

----- Original Message ----- 
From: "Emile van Essen" <2stroke@hetnet.nl>
To: <personal_submersibles@psubs.org>
Sent: Tuesday, April 26, 2005 2:02 PM
Subject: Re: [PSUBS-MAILIST] Stupid Idea was Burst Valve


> > I like the hydraulic idea.
> Lik it too. Altough some more complicated than mechanical.
> > You could also insert a "knife" for the cables if the drop is battery 
> > pods. Think like 2 plates with a hole in them. side motion to cut the 
> > wires.
>
> It is good to be creative. sgt Peppers has a drop battery keel and I am 
> designing new electrical connectors for it. I calculated that at operating 
> depth, the water pressure will keep connectors larger than 40 mm 
> "connected" despite 100 kg keel is pulling!!
> > Just a small though...
> >
> > Pierre Poulin
> >
> >
> >
> > ----- Original Message ----- 
> > From: "Hugo Marrero" <HMarrero@hboi.edu>
> > To: <personal_submersibles@psubs.org>
> > Sent: Monday, April 25, 2005 6:03 PM
> > Subject: RE: [PSUBS-MAILIST] Stupid Idea was Burst Valve
> >
> >
> > > Another simple idea for drop weight release is using a small hydraulic 
> > > pump
> > > to actuate a small hydraulic Ram to drop the weight. This system is easy 
> > > to
> > > implement and does not rely on electricity. With this you get the 
> > > mechanical
> > > advantage of hydraulics to drop the weight, and the penetration can be 
> > > set
> > > anywhere where is convenient. I have seen these being used sucessfully 
> > > to
> > > drop led trays with 5 Tons of led.
> > >
> > > Hugo
> >
> >
> >
> >
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