[PSUBS-MAILIST] Manipulator Hydrolic question

[hank pronk via Personal_Submersibles]

Scott, that is a GREAT idea, particularly in your deep sub.
Hank
--------------------------------------------
On Mon, 1/12/15, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Monday, January 12, 2015, 7:13 PM
 
 Hank,
  
 My thought was to have no hydraulic penetrators
 into the sub and to only have a subconn to run
 the manipulator. The pumps would be submerged in the
 hydraulic reservoir outside of the sub and would be pressure
 compensated.  Good or bad idea?
  
 Thanks,
 Scott Waters  
  
 
 -------- Original
 Message --------
 Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question
 From: hank pronk via Personal_Submersibles
 <personal_submersibles at psubs.org>
 Date: Mon, January 12, 2015 4:46 pm
 To: Personal Submersibles General Discussion
 <personal_submersibles at psubs.org>
 
 Scott,
 The pump runs the whole time the arm is in use. When you
 want to grab the gold filled chest, turn on the pump and use
 the arm then turn it off when your done. I would keep it
 simple, besides the arm functions are continuous. It
 probably takes less power to keep the pump running rather
 than start and stop constantly. You could use multiple small
 pumps that activate with each function, might be simpler in
 the end. No valve bank and less complicated.
 Hank
 --------------------------------------------
 On Mon, 1/12/15, via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 
 Subject: [PSUBS-MAILIST] Manipulator Hydrolic question
 To: "psubs" <personal_submersibles at psubs.org>
 Received: Monday, January 12, 2015, 5:54 PM
 
 Do
 most submarine manipulator arms have a pump for each
 cylinder controlled electronically from the inside of the
 sub or do they have one pump that is continuously running
 and hoses go in the sub and controlled with valves? Or
 perhaps another way? 
  
 My excavators in my company have one pump that is
 engine driven and it runs continuously an the cylinders are
 actuated by valves. Seems impractical to me to have a
 battery driven pump that runs continuously. 
  
 Thanks,
 Scott Waters
 -----Inline Attachment Follows-----
 
 _______________________________________________
 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
 
 -----Inline Attachment Follows-----
 
 _______________________________________________
 Personal_Submersibles mailing list
 Personal_Submersibles at psubs.org
 http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles