Re: ZIS 110

Posted by HH56 On 2009/4/19 11:11:57

Yes. much better. It looks like initial drawing had the parts reversed. If the rectangle piece is bolted to the door then that ratio looks to be about 4:1 but the idea is the same. The spring could also could be shorter-but stronger than the Packard.

If ZIS piston is maybe 5-6cm diameter then I think both would be somewhere around 35 bars pushing window up. ZIS used lower pressure, wider cylinder--Packard smaller cylinder but higher pressure. Packard also had slight mechanical advantage with ratio. But now on to the next subject--I think you said solenoid valves