[PSUBS-MAILIST] shaft seal,

[hank pronk]

An interesting experiment.  I have always wanted to experiment with hydraulic high pressure shaft seals.  This weekend I had a chance to do that.  I was buying O-rings for my sub drive unit and decided to buy a hydraulic seal, and they had one that fit my shaft and housing perfectly.  First I tested the chesterton seal and it leaked a bit.  The seal came with the Gamma and was an old take out.  I did not expect it to seal.  I just used it to size the parts I had to machine.  I then installed the 5 dollar hyd seal and gave it a shot of oil.  I pumped 600 psi of air into the chamber and spun the shaft and I holds the pressure  perfectly.  I am going to do a long run test with the shaft and seal in my lathe next.  Pretty interesting
Hank

From: hank pronk <hanker_20032000 at yahoo.ca>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Sunday, September 22, 2013 3:22:37 PM
Subject: Re: [PSUBS-MAILIST] hydraulics



I think Alan is a proud fan :-)


From: brian <brian at ojaivalleybeefarm.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Sunday, September 22, 2013 2:28:10 PM
Subject: Re: [PSUBS-MAILIST] hydraulics



Ha Ha

-----Original Message-----
From: "Alan" <alanlindsayjames at yahoo.com>
Sent 9/22/2013 11:14:29 AM
To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] hydraulics


What Americas cup catamarans Brian? 
Do you mean the Emirates Team NewZealand boat that is 8-3 up against Oracle Team U.S.A.?
Alan

Sent from my iPad

On 21/09/2013, at 1:26 PM, "brian" <brian at ojaivalleybeefarm.com> wrote:


Have you guys seen those Catamarans in the America's cup ?   Quite amazing.  They use the hydraulics to move the foils up and down as well as moving the "sail" or more correctly the wing.  It's all they can do to keep up the hydraulic pressure for the constant adjustments that have to be made.
>
>Brian
>
>-----Original Message-----
>From: "Alan" <alanlindsayjames at yahoo.com>
>Sent 9/21/2013 2:25:24 AM
>To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
>Subject: Re: [PSUBS-MAILIST] hydraulics
>
>
>Just did a quick google & there are hydraulic rim bicycle brakes as well as the disc brakes.
>These look like they could be possibly adapted.
>http://www.bikerumor.com/2013/04/15/sram-hydro-r-hydraulic-road-rim-disc-brakes-unveiled-details-first-rides/
>Alan
>
>
>
>
>Sent from my iPad
>
>On 19/09/2013, at 9:34 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>
>
>Hi Alan,
>>After some more thought, I have changed my mind about bicycle brakes.  The problem is the caliper has a rather large piston area.  This gives you better brake force, but it would hurt you when you put water pressure against it.  You want a small piston like a hydraulic clutch in a car.  I would use the clutch parts because they would also be aluminum and much tougher.  You would need to remove the piston and machine an o-ring  glove because the normal seal is designed to push in one direction only.
>>Hank
>>
>>From: hank pronk <hanker_20032000 at yahoo.ca>
>>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
>>Sent: Thursday, September 19, 2013 4:21:36 AM
>>Subject: Re: [PSUBS-MAILIST] hydraulics
>>
>>
>>
>>H Alan,
>>Bicycle brakes would probably work quite well because they are made from very good material.  
>>Hank
>>
>>
>>From: Alan <alanlindsayjames at yahoo.com>
>>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
>>Sent: Wednesday, September 18, 2013 11:55:49 PM
>>Subject: Re: [PSUBS-MAILIST] hydraulics
>>
>>
>>Hi Brian,
>>I've wondered about this also.
>>I was looking at the hydraulic brakes they have on bicycles now days &
>>wondering if you could adapt them for functions like releasing emergency
>>bouys or similar.  The manual hydraulics they have on boats, like steering units
>>are pretty expensive. Would be good to find something of suitable material
>>off the shelf hat could be used.
>>Alan
>>.
>>Sent from my iPad
>>
>>On 16/09/2013, at 5:28 AM, "brian" <brian at ojaivalleybeefarm.com> wrote:
>>
>>> I wonder if those human powered hydraulics could have an application for our boats, like the cats in the America's cup.
>>> 
>>> Brian
>>> _______________________________________________
>>> Personal_Submersibles mailing list
>>> Personal_Submersibles at psubs.org
>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>_______________________________________________
>>Personal_Submersibles mailing list
>>Personal_Submersibles at psubs.org
>>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>
>>
>>
>>
>_______________________________________________
>>Personal_Submersibles mailing list
>>Personal_Submersibles at psubs.org
>>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>_______________________________________________
Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles 
_______________________________________________
>Personal_Submersibles mailing list
>Personal_Submersibles at psubs.org
>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles 
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20130923/5233f567/attachment.html>