Re: [PSUBS-MAILIST] Hydraulic Drive Unit

["Sean T. Stevenson" <sts@telus.net>]

Carsten - one thing you mentioned didn't quite make sense:

Quoting Carsten Standfuss <MerlinSub@t-online.de>:

> Also the lip-bearing
> of the cylinders and motors are normally designed for inside pressure
> higher than outside.. 

If I understand you correctly - do you mean to say that you anticipated having 
higher ambient pressure than the pressure within your cylinders and motors?

This situation is avoided entirely by pressure compensating your hydraulic 
reservior to a bias above ambient.  The pump would create a (ideally) constant 
differential pressure above ambient.

Or do I misunderstand you?

-Sean