<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1421109941214_3268"><span id="yui_3_16_0_1_1421109941214_3273">Is it that easy Hank,</span></div><div dir="ltr" id="yui_3_16_0_1_1421109941214_3279"><span id="yui_3_16_0_1_1421109941214_3278">Wouldn't the oil in the reservoir change volume too much?</span></div><div dir="ltr" id="yui_3_16_0_1_1421109941214_3279"><span id="yui_3_16_0_1_1421109941214_3865">You would have to allow for a worst case scenario of all the manipulator</span></div><div dir="ltr" id="yui_3_16_0_1_1421109941214_3279"><span>cylinders being at full extension.</span></div><div dir="ltr" id="yui_3_16_0_1_1421109941214_3279"><span>Alan</span></div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1421109941214_3868"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1421109941214_3867"> <div dir="ltr" id="yui_3_16_0_1_1421109941214_3866"> <hr size="1" id="yui_3_16_0_1_1421109941214_3870"> <font size="2" face="Arial" id="yui_3_16_0_1_1421109941214_3869"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, January 13, 2015 1:29 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Manipulator Hydrolic question<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1421109941214_3871"><br><br clear="none">Scott,<br clear="none">If you can submerge the pump motor in the oil then you can have a square hyd reservoir with a rubber lid and your done, like the old school battery box.<br clear="none">Hank--------------------------------------------<br clear="none">On Mon, 1/12/15, hank pronk via Personal_Submersibles <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"> Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question<br clear="none"> To: "Personal Submersibles General Discussion" <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Monday, January 12, 2015, 7:26 PM<br clear="none"> <br clear="none"> Scott, that is a GREAT<br clear="none"> idea, particularly in your deep sub.<br clear="none"> Hank<br clear="none"> --------------------------------------------<br clear="none"> On Mon, 1/12/15, via Personal_Submersibles<br clear="none"> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> wrote:<br clear="none"> <br clear="none"> Subject: Re:<br clear="none"> [PSUBS-MAILIST] Manipulator Hydrolic question<br clear="none"> To: "Personal Submersibles General<br clear="none"> Discussion" <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Monday, January 12, 2015, 7:13 PM<br clear="none"> <br clear="none"> Hank,<br clear="none"> <br clear="none"> My thought was to have no<br clear="none"> hydraulic penetrators<br clear="none"> into the sub and to<br clear="none"> only have a subconn to run<br clear="none"> <br clear="none"> the manipulator. The pumps would be submerged in the<br clear="none"> hydraulic reservoir outside of the sub and<br clear="none"> would be pressure<br clear="none"> compensated. Good or<br clear="none"> bad idea?<br clear="none"> <br clear="none"> Thanks,<br clear="none"> Scott Waters <br clear="none"> <br clear="none"> <br clear="none"> -------- Original<br clear="none"> Message --------<br clear="none"> Subject: Re:<br clear="none"> [PSUBS-MAILIST] Manipulator Hydrolic question<br clear="none"> From: hank pronk via Personal_Submersibles<br clear="none"> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Date: Mon, January 12, 2015 4:46 pm<br clear="none"> To: Personal Submersibles General<br clear="none"> Discussion<br clear="none"> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> <br clear="none"> Scott,<br clear="none"> The<br clear="none"> pump runs the whole time the arm is in use. When you<br clear="none"> want to grab the gold filled chest, turn on<br clear="none"> the pump and use<br clear="none"> the arm then turn it off<br clear="none"> when your done. I would keep it<br clear="none"> simple,<br clear="none"> besides the arm functions are continuous. It<br clear="none"> probably takes less power to keep the pump<br clear="none"> running rather<br clear="none"> than start and stop<br clear="none"> constantly. You could use multiple small<br clear="none"> <br clear="none"> pumps that activate with each function, might be simpler<br clear="none"> in<br clear="none"> the end. No valve bank and less<br clear="none"> complicated.<br clear="none"> Hank<br clear="none"> <br clear="none"> --------------------------------------------<br clear="none"> On Mon, 1/12/15, via Personal_Submersibles<br clear="none"> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> wrote:<br clear="none"> <br clear="none"> <br clear="none"> Subject: [PSUBS-MAILIST] Manipulator Hydrolic question<br clear="none"> To: "psubs" <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Monday, January 12, 2015, 5:54 PM<br clear="none"> <br clear="none"> Do<br clear="none"> most<br clear="none"> submarine manipulator arms have a pump for each<br clear="none"> cylinder controlled electronically from the<br clear="none"> inside of the<br clear="none"> sub or do they have one pump<br clear="none"> that is continuously running<br clear="none"> and hoses go<br clear="none"> in the sub and controlled with valves? Or<br clear="none"> <br clear="none"> perhaps another way? <br clear="none"> <br clear="none"> <br clear="none"> My excavators in my company have one pump that is<br clear="none"> engine driven and it runs continuously an the<br clear="none"> cylinders are<br clear="none"> actuated by valves. Seems<br clear="none"> impractical to me to have a<br clear="none"> battery driven<br clear="none"> pump that runs continuously. <br clear="none"> <br clear="none"> Thanks,<br clear="none"> Scott Waters<br clear="none"> -----Inline Attachment Follows-----<br clear="none"> <br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"> <a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"> <a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><div class="qtdSeparateBR"><br><br></div><div class="yqt6646654066" id="yqtfd43119"><br clear="none"> <br clear="none"> -----Inline Attachment Follows-----<br clear="none"> <br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"> <a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"> <br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"> <a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></div><br><br></div> </div> </div> </div></body></html>