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<div dir="ltr" data-setdir="false">Alan, can you send the data sheet for the low viscosity silicone oil you are using. Thanks for the update on your thruster project. I am looking forward to you getting this operational.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Cliff</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div><br></div>
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On Tuesday, July 25, 2023 at 03:17:09 PM CDT, Alan James via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="ydp4ad3f1bbyiv9776689221"><div>Hi Cliff,<div>thanks for that detailed report.</div><div>We had discussed WD40 years ago and decided a low viscosity silicone was the way to go. The main problem we discussed was that the WD40 degraded plastics, but yes could imagine it would act on the binder in the brushes.</div><div>I built a thruster using a 6374 outrunner brushless motor.</div><div>I had 11 motors made up with 316 stainless shafts to my specs. I also had a mechanical seal. I feel now that I should build again with an inrunner motor. The inrunner has the coils on the outside and can dissipate the heat through the housing whereas with the outrunner, it's inner coils were being cooled by the silicone. It hasn't failed.</div><div>I found I needed an over-pressure in the compensation system as the silicone was being thrown out of the thruster housing and up the wiring tube.</div><div>I have been working for a long time now on an over-pressure compensator & recently bought a 3d resin printer to print the compensator body & sealing surfaces.</div><div>Not far off finishing but have to order 316 springs from overseas. The compensator can be pre set to between 2-8 psi. </div><div>The idea is that the thruster is oil compensated but pressurized by air. I like oil compensation as it lubricates & cools the parts, & in Minn Kottas I have seen, they don't have a bearing for reverse.</div><div>Alan</div><div><br clear="none"></div><div><br clear="none"><br clear="none"><div id="ydp4ad3f1bbyiv9776689221ymail_android_signature"><a shape="rect" id="ydp4ad3f1bbyiv9776689221ymail_android_signature_link" href="https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_" rel="nofollow" target="_blank">Sent from Yahoo Mail on Android</a></div> <br clear="none"> <blockquote style="margin:0 0 20px 0;"> <div style="font-family:Roboto, sans-serif;color:#6D00F6;"> <div>On Wed, 26 Jul 2023 at 6:13 am, Cliff Redus via Personal_Submersibles</div><div><personal_submersibles@psubs.org> wrote:</div> </div> <div style="padding:10px 0 0 20px;margin:10px 0 0 0;border-left:1px solid #6D00F6;"> _______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><div id="ydp4ad3f1bbyiv9776689221yqtfd46017" class="ydp4ad3f1bbyiv9776689221yqt8141163657"><br clear="none"> </div></div><div id="ydp4ad3f1bbyiv9776689221yqtfd85295" class="ydp4ad3f1bbyiv9776689221yqt8141163657"> </div></blockquote></div></div></div>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><div class="ydp4ad3f1bbyqt8141163657" id="ydp4ad3f1bbyqtfd88775"><br clear="none"></div></div>
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