check out Drazen Pavicin's Website at:
http://www.dalmatianet.com/personal/pavicin/
I have emailed this guy asking for more info. Response was that he has
built and patented a self running hydraulic engine and that he would be
pleased to show it to me of anyone else that is interested. This guy claims
that his engine self runs after an initial startup, requiring no fuel.
Unfortunately Croatia is a bit of a drive from here so, before I hit the
road, I was thinking that maybe somebody on the list familiar with
hydraulics could check out Drazen's Website and provide their opinion.
Bill.